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Introduction: Trichophyton tonsurans is an anthropophilic dermatophyte, frequent in the USA and in Asia where it is responsible for causing tinea capitis. At present, we attend an emergence of this species in certain regions where it was not or little met. Here, we report a case of onychomycosis of the hand due to T. tonsurans associated with non-albicans Candida species at an adult woman., Observation: The patient is a 62-year-old woman, with hypertension and diabetes. She reports the rather frequent use of chemical cleaners for the housework. She presented one year previously a distal onycholysis of the last four fingers of the left hand. The clinical examination objectified a presence of intertrigo in the second interdigital space. The mycological examination showed at the direct examination mycelial elements and the culture allowed the isolation of T. tonsurans associated with non-albicans Candida species., Discussion-Conclusion: Our observation highlights especially the identification of a species, which has been described only once in Morocco about a case with onychomycosis of the feet. A possible emergence of this species in our country is not far from being possible., (Copyright © 2016 Elsevier Masson SAS. All rights reserved.)

Inverse psoriasis is a disorder of intertriginous areas of the skin that can easily masquerade as candidal intertrigo. Candidal rashes are commonly encountered in primary care and typically respond promptly to therapy. When treatment fails, nonadherence to treatment and medication resistance often are suspected; however, the possibility of an incorrect diagnosis should also be entertained. This article presents the case of a patient with inverse psoriasis who was misdiagnosed with recurrent candidal intertrigo multiple times. The diagnosis and treatment of inverse psoriasis is reviewed, and other conditions that may be confused with Candida and inverse psoriasis, including bacterial intertrigo, tinea, and seborrheic dermatitis, are discussed. When confronted with a case of "resistant Candida," consideration of inverse psoriasis and other Candida mimics can allow physicians to diagnose and treat these conditions more effectively, avoiding the frustration experienced by our patient.

Background: Perianal dermatitis is probably the most common cutaneous disorder of the genitoanal area. Studies on the epidemiology of causative factors are rare., Methods: Over a 4-year period we prospectively studied 126 patients with a presumptive diagnosis of anal eczema. The diagnostic algorithm comprised medical history, inspection, microbiology, laboratory chemistry, patch tests, proctoscopy, and biopsy if appropriate., Results: The age range was 7-82 years and the majority of patients were male (57.1%). Periods of anal symptomatology ranged from 6 days to 120 months and most of the patients (51.6%) had complaints for more than 12 months. The clinical diagnosis in 68 patients (54%) was: intertrigo/candidiasis (42.9%), atopic dermatitis (6.3%), pruritus ani (5.6%), psoriasis (3.2%), skin atrophy from steroid use (2.4%), lichen sclerosus et atrophicus (n = 2), herpes simplex (n = 1), and condylomata acuminata (n = 1). Contact eczema was suspected in 58 patients (46%), but 25 of these (43.1%) showed no contact sensitization., Conclusion: The majority of patients with symptoms of anal eczema suffer from intertrigo/candidiasis, and relevant, causative contact sensitization may be found in only some of them. Patch-testing is a valuable investigative tool only when the patients' own products are included in the test series. Most patients suffer from their perianal complaints for more than 12 months, therefore diligent evaluation is warranted.