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Background: There is limited epidemiological evidence on outcomes associated with dupilumab exposure during pregnancy; monitoring pregnancy outcomes in large populations is required. Objective: To investigate the potential association between exposure to dupilumab in pregnant women with atopic dermatitis and any adverse pregnancy, neonatal, congenital and post‐partum outcomes. Methods: We performed a multicentre retrospective cohort study across 19 Italian tertiary referral hospital. Childbearing women were eligible if aged 18–49 years and carried out the pregnancy between 1 October 2018 and 1 September 2022. Results: We retrospectively screened records of 5062 patients receiving dupilumab regardless of age and gender, identifying 951 female atopic dermatitis patients of childbearing age, 29 of whom had been exposed to the drug during pregnancy (3%). The median duration of dupilumab treatment prior to conception was 22.5 weeks (range: 3–118). The median time of exposure to the drug during pregnancy was 6 weeks (range: 2–24). All the documented pregnancies were unplanned, and the drug was discontinued in all cases once pregnancy status was reported. The comparison of the study cohort and the control group found no significant drug‐associated risk for adverse pregnancy, congenital, neonatal or post‐partum outcomes. The absence of a statistically significant effect of exposure on the event was confirmed by bivariate analysis and multivariate analysis adjusted for other confounding factors. Conclusions: This cohort of pregnant patients exposed to dupilumab adds to the existing evidence concerning the safety of biologic agents in pregnancy. No safety issues were identified regarding the primary outcome assessed. In clinical practice, these data provide reassurance in case of dupilumab exposure during the first trimester. However, the continuous use of dupilumab throughout pregnancy warrants further research. [ABSTRACT FROM AUTHOR]

Locally advanced (laBSCs) and metastatic basosquamous carcinomas (mBSCs) represent a therapeutic challenge. By definition, these forms are not amenable to surgery or radiotherapy, but according to literature reports, sonic hedgehog pathway inhibitors (HHIs), anti‐programmed death 1 receptor antibodies (anti‐PD‐1), and other treatment approaches involving chemotherapy, surgery, and radiotherapy have been used. This work features 5 real‐life cases of advanced BSCs, treated at the Dermato‐Oncology Unit of Trieste (Maggiore Hospital, University of Trieste). In addition, a review of the current treatment options reported in the literature for laBSC and mBSC is provided, collecting a total of 17 patients. According to these preliminary data, HHIs such as sonidegib and vismodegib could represent a safe and effective first line of treatment, while the anti‐PD‐1 cemiplimab may be useful as a second‐line option. Chemotherapy and combined approaches involving surgery and radiotherapy have been also reported to be suitable in some patients. [ABSTRACT FROM AUTHOR]

Rosai–Dorfman disease, also known as sinus histiocytosis with massive lymphadenopathy (SHML), is a rare subtype of reactive histiocytosis which is seldom associated with Hodgkin's and non‐Hodgkin's lymphomas. To date, the coexistence in the same patient of extra nodal SHML and primary cutaneous B‐cell lymphoma (PCBCL) has been reported in the literature, as metachronous diagnosis in the anatomical area of the original PCBCL or synchronous occurrence in the same lesions. However, no data have been published as for synchronous occurrence of the two pathological entities in distinct anatomical sites. Herein, we report the first ever described synchronous occurrence of PCBCL and SHML, detected in distinct lesions, affecting the same patient. The complete resolution of the patient's PCBCL after rituximab treatment and the concomitant regression of SHML suggest that this clinically benign reactive histiocytic proliferation, potentially triggered by the lymphoma microenvironment itself, may take place not only in the site of the PCBCL lesion, but also in other distant areas not directly affected by the primary cutaneous lymphoma. [ABSTRACT FROM AUTHOR]

Sun exposure represents, among all risk factors for the development of skin cancer, the one on which we can impact the most modifying the behavior of patients.[1] Accordingly, occupational sun exposure embodies a preventable burden on public health, and an abundance of data on its impact has been produced.[2] In this regard, many efforts have been made in defining the effects of occupational sun exposure in the US military, with plenty of evidence describing an increased risk for skin cancer development.[3] On the other hand, despite different populations, latitudes, and climates, which could play a crucial role in the incidence of skin cancer, data concerning the militaries employed in Italy are lacking. On the other hand, subjects with Fitzpatrick skin types I-II felt more at risk of developing skin cancer than those with type III ( I P i < 0.001), but despite this, they did not undergo more skin examinations ( I P i = 0.9). Skin cancer in the military: a systematic review of melanoma and nonmelanoma skin cancer incidence, prevention, and screening among active duty and veteran personnel. [Extracted from the article]