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Mycosis fungoides (MF) is the most common type of cutaneous T-cell lymphoma in adults. However, it is rare in middle childhood. Such cases usually present with hypopigmented patches that may mimic common childhood dermatoses, thereby causing a delay in the diagnosis. Sezary syndrome is a rare and aggressive leukaemic variant of cutaneous lymphoma. We report a patient in middle childhood who presented with recurring non-specific folliculotropic manifestations. The final diagnosis of MF was arrived at after excluding all other possible dermatoses. Within a few months of skin manifestations, our index child was found to have blood involvement with similar clonal T-lymphoid cells. Such rapid development of Sezary syndrome within months of cutaneous presentation has never been described. There are no established treatment guidelines for the same in paediatric population. The patient underwent a matched sibling allogeneic transplant after a course of topical steroids and skin electron beam therapy., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

Competing Interests: Conflicts of interest The authors declare no conflicts of interest.

A 38-year-old male presented with waxy papules, plaques over the neck and extremities, and ichthyotic scales over the lower limbs. Skin biopsy revealed a dense medium-sized lymphocytic infiltrate in the dermis, with perifollicular accentuation and focal exocytosis into the follicular epithelium with strong positivity for CD 3, 4, and 5. Considering the clinicopathological correlation, a diagnosis of follicular mycosis fungoides (FMF) was made. It is a variant of classic mycosis fungoides (MF) where atypical cells invade the follicular epithelium., (© 2024 the International Society of Dermatology.)

Background: Hypopigmented mycosis fungoide (HMF) is a rare variant of cutaneous T-cell lymphoma of unknown pathogenesis. It is the most common cutaneous lymphoma in childhood. It is characterized by hypopigmented macules in non-photoexposed areas, generally asymptomatic. The diagnosis is confirmed with histopathological study and immunohistochemistry. Treatment will depend on the clinical stage, with topical therapies being the first-line treatment., Clinic Case: 69-year-old female, with no significant personal pathological history. She was treated for dermatosis of 7 years of evolution, spread to the 4 segments with affected body surface of 35% that respected palms and soles, characterized by polymorphic hypochromic macules of 1 to 10 cm in diameter that converge to form larger lesions, and some post-inflammatory hyperchromic macules, accompanied by itching. The histopathological study reported data compatible with mycosis fungoides and immunohistochemistry with positivity for CD3, CD4, CD5 and CD8. It was diagnosed stage IB HMF. It was administered treatment based on prednisone and phototherapy with a good response., Conclusions: This case makes possible an outlook of the demographic data of HMF, and it allows this entity to be taken into consideration for possible differential diagnoses that are not contemplated due to the limited dissemination of knowledge about this disease. It is important to emphasize the knowledge of HMF since early diagnosis and timely treatment will improve the prognosis in our patients and prevent them from being treated incorrectly., (Licencia CC 4.0 (BY-NC-ND) © 2024 Revista Médica del Instituto Mexicano del Seguro Social.)

Milia en plaque (MEP) is an uncommon skin condition identified as retroauricular confluent milium by Boulzer and Fouqet in 1903 [1]. It can be mistaken for other dermatoses like Favre-Racouchot nodular elastosis, steatocystoma multiplex, and nevus comedonicus. Milia en plaque can either be primary or secondary and is typically benign, often triggered by dermatological procedures like cryotherapy, as reported in this journal. In some cases, MEP can arise as a secondary manifestation of other diseases, including folliculotropic mycosis fungoides (FMF). Despite this association, there are few documented cases in the literature. Herein, we present a patient in whom MEP served as the initial clinical presentation of FMF; the treatment involved oral retinoids and phototherapy. Furthermore, we highlight distinctive features of both conditions. It is important to emphasize that early diagnosis and treatment of FMF are vital for the patient's quality of life. The presence of MEP can serve as a valuable indicator for identifying it.

The underlying mechanisms mycosis fungoides (MF)-related pruritus remain unclear, and the link between pruritus and systemic inflammation in MF is unexplored. We aimed to investigate systemic inflammation in MF patients and its potential connection to pruritus. In this retrospective study, demographic characteristics, MF stage, clinical and laboratory findings, and neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), monocyte-lymphocyte ratio (MLR), systemic immune-inflammation index (SII), systemic inflammation response index (SIRI) and pan-immune inflammation value (PIV) were assessed for all participants. Additionally, mSWAT scores, Dermatology Life Quality Index (DLQI), and pruritus presence and intensity via Visual Analogue Scale (VAS) scoring were recorded for MF patients. A total of 81 patients with early-stage MF and 50 controls were enrolled. Itching was present in 41 patients (50.6%). NLR, PLR, SII, SIRI and CRP values in the MF group were significantly higher. CRP, NLR, mSWAT and DLQI score were significantly higher in MF patients with pruritus than those without. Pruritus was positively correlated with DLQI, mSWAT, CRP, NLR, MLR and SIRI. VAS score was positively correlated with eosinophil count and DLQI. In the multivariate logistic regression model, only NLR was an independent and significant associate of pruritus in patients with MF. This study provides evidence of enhanced systemic inflammation in early-stage MF patients. Additionally, the correlation between pruritus with mSWAT scores and systemic inflammation parameters suggests a potential link between pruritus and the inflammatory milieu in MF., (© 2024 The Authors. Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd.)

The relationship between bullous pemphigoid (BP) and neoplasms has been debated in the medical literature. Although numerous case reports have described the coexistence of BP with various neoplasms, case-control studies have yielded conflicting results. We present the case of a male patient who developed BP shortly after being diagnosed with mycosis fungoides (MF). He was a 77-year-old man with a history of type 2 diabetes mellitus and hypertension who was diagnosed with MF. Subsequently, he developed blisters after sun exposure, and was diagnosed with BP through histopathology and direct immunofluorescence. The patient was treated with prednisone and methotrexate, with favorable evolution without recurrence of MF or appearance of new blisters. The association between cutaneous T-cell lymphoma and autoimmune blistering disease is rare, although similar cases have been reported, some associated with phototherapy. In this case, the onset of BP after sun exposure suggests a potential connection. The coexistence of BP and MF remains controversial, and this case highlights the importance of considering autoimmune blistering diseases in patients with oncohematological neoplasms.

Mycosis fungoides is the most commonly seen type of cutaneous T-cell lymphoproliferative disease. While mycosis fungoides is linked to an increased risk of developing secondary malignancies, the occurrence of B-cell-originated disease in association with it is exceedingly rare. A 66-year-old male with persistent papillomatous skin eruption was admitted due to dyspnea. Chest X-ray, positron emission tomography, and chest computed tomography revealed axillary and mediastinal lymph node enlargement and right lower pulmonary lobe infiltration along with right-sided massive pleural effusion. Histological and immunohistochemical findings of pleural biopsy and axillary lymph nodes suggested a diagnosis of pulmonary extranodal marginal zone lymphoma. Skin biopsies from the abdomen, chest, and legs revealed CD4/CD8 double-positive patch stage of mycosis fungoides. After completing six cycles of chemotherapy, complete remission of lymphoma was achieved, with the skin eruptions remaining unchanged. Herein, the authors present a unique case of concomitant diagnoses of mycosis fungoides and marginal zone B-cell lymphoma of the respiratory system to emphasize the importance of careful evaluation of each finding.

Background: Immunosuppression following solid organ transplantation is a known risk factor for the development of posttransplant lymphoproliferative disorders (PTLD). Primary cutaneous T-cell lymphoma (CTCL) occurring in the posttransplant setting is rare, which has made comprehensive understanding of this disease challenging. This study aims to further characterize the spectrum of clinicopathologic features of CTCL in solid organ transplant recipients (SOTR)., Methods: A retrospective chart review was performed for SOTR who were diagnosed with CTCL at a multi-site academic medical center from January 1, 1998, to December 31, 2013. Eight patients fulfilled the inclusion criteria and were included in this study. Data collected included patient demographics, transplanted organ, the time between transplant and CTCL diagnosis, clinical presentation and rash morphology, a histological subtype of CTCL, immunosuppression regimens, and patient status. Twelve diagnostic skin biopsies for five patients were examined and reviewed by a board-certified dermatopathologist., Results: Six (75%) out of the eight patients were men, two (25%) were women, and the median age was 53 years. The median time from the date of transplant to the diagnosis of CTCL was 8.2 years. Transplanted organs included the liver (4), kidney (3), and heart (1). Clinical presentation varied from papulonodules, comedone-like lesions, intense pruritis, and scaly erythematous eruptions. The most common histologic presentation was folliculotropic mycosis fungoides (FMF) (7/12). Epstein-Barr virus-in situ hybridization (EBV-ISH) was negative in all specimens., Conclusions: We emphasize the rarity of CTCL among SOTR. Although rare in the general population, the FMF subtype appears to be disproportionately seen in SOTR compared with other CTCL., (© 2022 the International Society of Dermatology.)

Competing Interests: Conflict of interest: the authors declare that they have no conflict of interest.

Introduction: Haemato-oncologic patients are more susceptible to severe infections with SARS-CoV-2. We aimed to assess the clinical outcomes of SARS-CoV-2 infection among patients with Mycosis Fungoides and Sezary Syndrome (MF/SS)., Methods: The data were retrieved from anonymized electronic medical records of Maccabi Healthcare Services (MHS), the second-largest healthcare organization in Israel. Patients diagnosed with MF/SS were included in the study. COVID-19 PCR test results together with sociodemographic and clinical data were extracted and analyzed to evaluate the association of COVID-19 with clinical outcomes., Results: In the period of 2020-2022, 1,472 MF/SS patients were included in the study. Among them, 768 (52%) had SARS-CoV-2 infection. The hospitalization rate was 2.9% and infection by the Delta variant was associated with the highest hospitalization rate (7.7%). The hospitalization rate was lower among fully vaccinated patients (p = 0.032) but higher for patients older than 65 (p < 0.001) and patients with SS (vs. MF) (p < 0.001) or COPD (p = 0.024) diagnosis. There was a tendency for decreased hospitalization among patients treated with nirmatrelvir + ritonavir within 5 days of infection, with a 79% risk reduction, although it was not statistically significant (p = 0.164)., Conclusion: Patients with MF/SS do not necessarily have worse COVID-19 outcomes compared to the general population., (© 2023 The Author(s). Published by S. Karger AG, Basel.)

Competing Interests: Conflicts of interest None disclosed.

Background: The clinicoprognostic implications of head and neck involvement of mycosis fungoides (MF) are poorly understood., Objectives: To evaluate the association of head and neck involvement on the clinicoprognostic features of MF., Methods: The clinical features and survival outcomes of patients with MF in a Korean academic medical center database were retrospectively evaluated according to the presence of head and neck involvement at diagnosis., Findings: Cases of MF with (group A, n = 39) and without (group B, n = 85) head and neck involvement at diagnosis were identified. Advanced-stage disease (stages IIB-IVB) was more common in group A (43.6%) than in group B (5.9%) (P < .001). MF progression, extracutaneous dissemination, and large-cell transformation more commonly occurred in group A than in group B. The 10-year overall survival rate was worse in group A (53.4%) compared with group B (81.6%) (P < .001). Head and neck involvement at diagnosis was associated with poor prognosis in early-stage MF (stages IA-IIA) and was independently associated with worse progression-free survival (hazard ratio, 24.4; 95% confidence interval, 2.2-267.6; P = .009)., Limitations: A single center, retrospective design., Conclusion: Head and neck involvement of MF was associated with a poor prognosis., Competing Interests: Conflict of interest None disclosed., (Copyright © 2021 American Academy of Dermatology, Inc. Published by Elsevier Inc. All rights reserved.)

A 58-year-old man was diagnosed with mycosis fungoides (MF) confirmed by skin biopsy for systemic erythema that appeared in 2006 and had been on psoralen plus ultraviolet A (PUVA) therapy and topical steroids. In September 2017, he had diffuse large B-cell lymphoma and received chemotherapy. Since March 2019, tumor stage MF with large cell transformation was observed, and chemotherapy containing brentuximab vedotin (BV) was performed, which yielded a remarkable response. During the preparation for allogeneic hematopoietic stem cell transplantation, bradykinesia, delayed response, and cognitive decline were observed. Head magnetic resonance imaging fluid-attenuated inversion recovery images showed hyperintensity in the deep white matter below the bilateral frontal cortex. The general cerebrospinal fluid test revealed no abnormalities and was below the sensitivity of JC virus (JCV) quantitative PCR. As progressive multifocal leukoencephalopathy (PML) was strongly suspected from clinical symptoms and radiographic signs, ultrasensitive JCV testing was performed. The test result was positive; hence, the patient was diagnosed with PML. Chemotherapy was discontinued, but his central nervous system symptoms worsened, and he died on the 135th day of illness. We considered that PML developed based on the underlying disease and immunodeficiency caused by chemotherapy such as BV.

Abstract: A 15-year-old boy presented to the pediatric dermatology department with long-standing patch stage CD8+ mycosis fungoides and subsequent development of recurrent pityriasis lichenoides et varioliformis acuta eruptions. There have been rare reports of patients with chronic, recalcitrant pityriasis lichenoides developing mycosis fungoides, but we believe this to be the second case of mycosis fungoides preceding a diagnosis of pityriasis lichenoides, and the first case reported in the pediatric population., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Adult T-cell leukemia/lymphoma (ATLL) is a lymphoproliferative disorder of mature CD4-positive T-cell lymphoid cells associated with retrovirus human T-lymphotropic virus type-1 (HTLV-1) with a wide clinical and pathologic spectrum. We report a case of a 53-year-old African man who presented with fever and skin eruptions on the trunk composed of non-itchy erythematous reticulated macules and papules initially suspected for viral exanthem or drug rash. Skin punch biopsy showed a dermal T-cell lymphoid infiltrate with epidermotropism. The patient developed generalized lymphadenopathy and his peripheral blood showed lymphocytosis with atypical lymphocytes with convoluted nuclei. Our initial diagnosis was mycosis fungoides with Sézary syndrome. However, some clinical and histopathologic features were unusual. The acute onset, lack of previous skin lesions, the histomorphologic features of the dermal, nodal and peripheral blood lymphocytes and the geographic origin of the patient raised the suspicion of other T-cell lymphomas, particularly ATLL. This was confirmed by a positive anti-HTLV-1 serology. Our final diagnosis was acute variant ATLL. Different T-cell lymphomas can involve the skin with overlapping clinical, histomorphologic and immunohistochemical features. Some clinical and pathologic features should alarm dermatologists and pathologists to the possibility of ATLL particularly in patients from HTLV-1 endemic geographic areas., (© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Background: Patients with mycosis fungoides (MF) are at increased risk of developing non-Hodgkin lymphoma (NHL), Hodgkin lymphoma (HL), lung cancer, bladder cancer and melanoma. The characteristics of patients developing these malignancies have not been specifically delineated. In addition, there are no established guidelines for screening MF patients for second malignancies., Materials/methods: We identified 742 patients with MF who developed second malignancies in the Surveillance Epidemiology and End Result-18 database., Results: The majority of second malignancy patients were white and male, mean age 55-67 years at diagnosis of MF, and mean age 61-72 years at diagnosis of second malignancy. The majority of patients diagnosed with second malignancies had early stage MF. MF patients with NHL, lung cancer, and bladder cancer tended to be diagnosed at earlier stages of the second malignancy than patients without MF and demonstrated better 5-year overall survival. There was no improvement in stage at diagnosis or survival for MF patients who were diagnosed with melanoma compared to patients without MF., Conclusions: Improvements in survival in MF/NHL, MF/lung cancer and MF/bladder cancer patients may reflect differences in disease biology secondary to having MF or the importance of increased contact with the healthcare system. MF/melanoma data suggest that patients require regular pigmented-lesion-focused skin examinations. Tools for screening include regular lymph node examinations, pigmented-lesion-focused examinations and detailed review of systems questions. Smoking cessation counseling is key intervention in this population, as is ensuring that all age- and sex-specific cancer screenings are up-to-date (e.g. lung cancer screening, mammography, and colonoscopy). The utility of regular imaging for second malignancy screening and lab testing such as routine urinalysis requires additional study and expert consensus., (© 2021 European Academy of Dermatology and Venereology.)

Purpose: Low-dose total skin electron beam therapy (TSEBT) over 3 weeks has proved to be a safe and effective treatment for cutaneous T cell lymphomas (CTCL). In this prospective trial, we examined the feasibility of ultra-hypofractionated low-dose TSEBT regimen in two fractions with 4 Gy combined with systemic therapy to minimize the number of visits to radiation centers., Patients and Methods: Six patients with mycosis fungoides (MF) or Sézary syndrome (SS) received TSEBT with a total radiation dose of 8 Gy in two fractions between April 2020 and June 2020. Patient and treatment characteristics, tumor burden, the impact on the quality of life using Skindex-29 questionnaires, and acute toxicities were analyzed., Results: During TSEBT, all patients developed grade 1 toxicities while two patients developed grade 2 toxicities. One patient experienced sepsis. The most common adverse effects were erythema and edema. All grade 2 toxicities regressed after 4 weeks following TSEBT. Based on the reported symptoms measured by Skindex-29, we detected a significant reduction in total Skindex-29 score after 8 weeks of radiation (P = 0.03), particularly in the symptoms (P = 0.01) and emotional domains (P = 0.04)., Conclusion: Ultra-hypofractionated low-dose TSEBT followed by systemic therapy seems to be a safe and feasible alternative to conventional fractionated TSEBT for patients with MF/SS. The skin tumor burden and the health-related quality of life have been significantly improved within 8 weeks following radiotherapy.

Background: Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) is associated with an increased risk of a second malignancy., Methods: We conducted a retrospective clinicopathologic review of 12 patients with CLL/SLL who developed a second lymphoma in the skin. Demographic data, clinical information, and histopathology from 31 biopsies were recorded. Cases of secondary cutaneous involvement by CLL/SLL (leukemia cutis) and non-primary cutaneous lymphomas were excluded., Results: A wide variety of primary cutaneous lymphomas was identified, including classic mycosis fungoides (3), cutaneous marginal zone lymphoma (2), primary cutaneous peripheral T-cell lymphoma unspecified (2), folliculotropic mycosis fungoides (1), Sézary syndrome (1), cutaneous gamma-delta T-cell lymphoma (1), cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma (1), and cutaneous anaplastic large cell lymphoma (1). A male predominance was observed, and the average age was 74.1 years. In all patients, CLL/SLL predated the development of the second lymphoma, which was aggressive in the majority of cases (58%). Aggressive cytotoxic T-cell lymphomas, generally rare neoplasms, were relatively common (30%)., Conclusions: CLL/SLL patients may develop a second lymphoma in the skin, which may be aggressive. Atypical cutaneous lymphoid infiltrates in this patient population should not be assumed to represent secondary CLL/SLL involvement and require thorough immunohistochemical analysis., (© 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Abstract: Hypopigmented mycosis fungoides (HMF) is a clinical variant of MF with a presentation similar to other hypopigmented diseases, especially vitiligo. In this article, we report an adult case of HMF mimicking vitiligo. A 53-year-old man presented with an asymptomatic well-defined focal and hypopigmented patch with erythematous to brownish macules on the flank which had been developing over several months without other cutaneous findings. He had no past medical or trauma history. Skin biopsy from the hypopigmented patch indicated a slightly band-like, superficial dermal infiltrate of lymphocytes with mild cytologic atypia and epidermotropism. Fontana-Masson and Mart-1 stains showed a decrease in the epidermal pigment and the number of basal melanocytes. In addition, CD4 and CD8 stains were positive, predominantly the CD8 stain, and loss of CD7 stain was noted in the epidermal atypical lymphocytes. A T-cell receptor gene rearrangement study from the hyperpigmented area showed monoclonality. Finally, we diagnosed the patient with HMF. After about 17 months of treatment with narrow-band ultraviolet B, the hypopigmented lesion had notably improved in both the clinical and histological aspects. The clinical appearance of our case was similar to vitiligo while clinical improvement was also exceptionally similar to the skin findings from follicular repigmentation after narrow-band ultraviolet B treatment in vitiligo. Therefore, dermatologists should consider the clinical differential diagnosis of HMF in patients with an asymptomatic hypopigmentation, especially in dark-skinned Asian patients., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Sézary syndrome (SS) and mycosis fungoides (MF), 2 types of cutaneous T-cell lymphoma, cause significant morbidity and adversely affect patients' quality of life (QoL). The present study assessed the QoL measurement changes in patients receiving mogamulizumab versus vorinostat., Patients and Methods: A multicenter phase III trial was conducted of patients with stage IB-IV MF/SS with ≥ 1 failed systemic therapy. The QoL measures included Skindex-29 and the Functional Assessment of Cancer Therapy-General. The symptoms, function, and QoL subdomains were longitudinally modeled using mixed models with prespecified covariates. Meaningful change thresholds (MCTs) were defined using distribution-based methods. The categorical changes by group over time and the time to clinically meaningful worsening were analyzed., Results: Of the 372 randomized patients, mogamulizumab demonstrated improvement in Skindex-29 symptoms (cycles 3, 5, and 7; P < .05) and functional (cycles 3 and 5; P < .05) scales. A significantly greater proportion of mogamulizumab-treated patients improved by MCTs or more from baseline in the Skindex-29 symptoms domain (cycles 3, 5, 7, and 11) and functioning domain (cycle 5). Significant differences in the Functional Assessment of Cancer Therapy-General physical well-being (cycles 1, 3, and 5; P < .05) were observed in favor of mogamulizumab and a greater proportion of patients had declined by MCTs or more at cycles 1, 3, 5, and 7 with vorinostat treatment. The median time to symptom worsening using Skindex-29 was 27.4 months for mogamulizumab versus 6.6 months for vorinostat. In the patients with SS, the time to worsening favored mogamulizumab (P < .005) for all Skindex-29 domains. The time to worsening was similar for the 2 MF treatment arms., Conclusion: The symptoms, function, and overall QoL of patients with MF/SS favored mogamulizumab over vorinostat across all time points. Patients with the greatest symptom burden and functional impairment derived the most QoL benefit from mogamulizumab., (Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.)

Background: Mycosis fungoides (MF) is associated with increased risk of second primary hematologic malignancies, but its association with second primary solid tumors is less well characterized., Objective: This retrospective analysis seeks to assess the risk of being diagnosed with a second primary hematologic or solid malignancy in patients with MF., Design: We performed an analysis of patients diagnosed with MF from 2000 through 2015 in the United States cancer registries of SEER-18 (N = 6742)., Results: Relative risks were estimated by using standardized incidence ratios (SIRs). Among 6742 patients, there were 511 (7.5%) second cancer events (SIR, 10.15; 95% confidence interval [CI], 9.29-11.07). These included 184 (36.0%) hematologic malignancies (SIR, 39.71; 95% CI, 34.05-46.05) and 327 (64.0%) solid tumor malignancies (SIR, 7.33; 95% CI, 6.56-8.17). Patients with MF were at increased risk for non-Hodgkin lymphoma; Hodgkin lymphoma; melanoma; and lung, female breast, prostate, colon, and renal cancers. Females were at higher risk than males (P < .05). All ethnic groups showed a statistically significant elevation in SIRs. Elevation of SIRs was observed across all stages of MF., Conclusions and Relevance: Patients with MF are at increased risk for diagnosis of second primary malignancies and should be carefully screened for discernable signs and symptoms of second malignancies., (Copyright © 2019 American Academy of Dermatology, Inc. Published by Elsevier Inc. All rights reserved.)

Cutaneous T-cell lymphomas are very rare in children. Although mycosis fungoides is the most common of these rare cutaneous T-cell lymphomas in children, transformation to an aggressive malignancy remains extremely uncommon, and there are no clear guidelines for clinical management in the pediatric population. In addition, the increased usage of next-generation sequencing for pediatric patients with unusual malignancies may result in the discovery of pathogenic germline mutations, though the association between these mutations and the patient's cancer is not always clear. We present here a unique pediatric case of transformed mycosis fungoides in a patient with BRCA2 mutation.

Background: Questionnaire tools are increasingly being used to assess health related quality of life (HRQOL) in mycosis fungoides (MF) patients. However, a thorough understanding of the factors that lead to poor HRQoL in early stage disease and their distribution across patient subgroups is lacking., Objectives: To characterize factors affecting HRQoL as assessed by Skindex-29 in subgroups of patients with early stage MF seen at a multidisciplinary cutaneous lymphoma clinic., Methods: Skindex-29, a multidimensional survey that evaluates HRQoL (emotions, symptoms, function), was distributed to early stage MF patients. Overall and component scores were analyzed in three groups: no evidence of disease (NED), active disease with limited early stage (AD-T1), and active disease with more extensive early stage (AD-T2). Scores were also compared among patients receiving different treatment modalities., Results: 56 patients (9 NED, 36 AD-T1, and 11 AD-T2) were enrolled in the study. Overall Skindex-29 scores and scores for individual dimensions were comparable among the three sub-groups. Similarly, these scores did not significantly differ among treatment groups or after removal of patients with previous staging higher than IB. Analysis of individual questions revealed that NED patients reported higher scores for questions pertaining to anger and fatigue., Conclusions: Early stage MF patients enrolled in this study had high overall Skindex-29 scores. Surprisingly, Skindex-29 scores of NED patients were comparable to those of patients with active disease, T1 and T2, mostly due to anger and fatigue. Even when skin involvement is minimal or absent, MF patients continue to report impaired HRQoL., Competing Interests: Declaration of Competing Interest The authors have no conflicts of interest to disclose., (Copyright © 2020. Published by Elsevier B.V.)

A 28-year-old man with a history of mycosis fungoides presented for evaluation of multiple dark-brown macules and hyperpigmented dome-shaped papules on the distal tongue. A shave biopsy of the tongue revealed melanin pigment in the basal keratinocytes and melanophages in the lamina propria, consistent with pigmented fungiform papillae of the tongue. Relevant clinical and histologic features of this diagnosis are reviewed.

Case 1: A 17-year-old white man was referred for evaluation of biopsy-proven patch-stage mycosis fungoides (MF) that had first appeared 5 years previously. Asymptomatic "bruises" had appeared under his football padding in a waistband distribution, and these lesions improved during each offseason but never fully resolved. His exposure history was only positive for swimming pool water and his athletic pads. On physical examination, large, irregular, geometric tan-colored patches were present along his waistband area, in areas of contact with his football padding, with an involved body surface area (BSA) of 23.7% (Figure 1A). Examination of scale for fungal hyphae under potassium hydroxide was negative. No lymphadenopathy was present.