PA13: A Hair’s Breadth from Misdiagnosis
June 2024
in “
British Journal of Dermatology
”
New to mometasone furoate? There is a guide in the encyclopedia. Read the guide → 
Studysummary This case report highlights the diagnosis of folliculotropic mycosis fungoides in a 15-year-old boy with atypical skin and hair follicle changes, a rare occurrence in pediatric patients. Our plain-language summary of this paper — not a Tressless recommendation.
A 15-year-old boy with a 2-year history of hair loss and skin changes was initially misdiagnosed with nonspecific lymphocytic folliculitis. Further histopathological review and expert opinion confirmed a diagnosis of folliculotropic mycosis fungoides (FMF), a rare condition in pediatric patients. The patient exhibited patch-stage disease with a modified Severity-Weighted Assessment Tool (mSWAT) score of 3.9, without lymphadenopathy or B symptoms. Treatment with mometasone furoate 0.1% was initiated, and further investigations are planned. This case underscores the importance of considering FMF in pediatric patients with lesions resembling keratosis pilaris in unusual distributions.
