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Spiky follicular mycosis fungoides: a clinicopathologic study of 8 cases


Tomasini, Carlo; Kempf, Werner; Novelli, Mauro; Fava, Paolo; Annessi, Giorgio; Rongioletti, Franco; Fierro, Maria Teresa; Quaglino, Pietro (2015). Spiky follicular mycosis fungoides: a clinicopathologic study of 8 cases. Journal of Cutaneous Pathology, 42(3):164-172.

Abstract

Background: The early stages of follicular mycosis fungoides (FMF) have not been described previously in the literature.
Objective: Our goal was to better categorize the clinicopathologic features of early stages of FMF.
Methods: The clinical notes of patients with a diagnosis of FMF seen during the previous 5 years were reviewed to identify any cases that at presentation had only hyperkeratotic follicular lesions.
Results: Eight patients (five male, three female) with a mean age of 55.4 years were enrolled. Noteworthy, FMF was not a clinical consideration in any of these patients initially. Patients presented with disseminated, slightly erythematous, hyperkeratotic, spiky follicular papules which, histopathologically, showed hyperkeratotic columns protruding from follicular plugging in concert with selective infiltration of the infundibular epithelium by atypical, mostly CD4+, lymphocytes. T-cell clonality was demonstrated in four of eight cases. The mean duration of the lesions before diagnosis was 17.1 months. The course was indolent in most of the cases (median follow up: 18 months), whilst progression to overt FMF was noted in two patients.
Limitations: The number of cases is small and follow up relatively short.
Conclusions: Spiky FMF is a deceptive clinicopathologic presentation of FMF that has been poorly described and that can mimic numerous follicular disorders.

Abstract

Background: The early stages of follicular mycosis fungoides (FMF) have not been described previously in the literature.
Objective: Our goal was to better categorize the clinicopathologic features of early stages of FMF.
Methods: The clinical notes of patients with a diagnosis of FMF seen during the previous 5 years were reviewed to identify any cases that at presentation had only hyperkeratotic follicular lesions.
Results: Eight patients (five male, three female) with a mean age of 55.4 years were enrolled. Noteworthy, FMF was not a clinical consideration in any of these patients initially. Patients presented with disseminated, slightly erythematous, hyperkeratotic, spiky follicular papules which, histopathologically, showed hyperkeratotic columns protruding from follicular plugging in concert with selective infiltration of the infundibular epithelium by atypical, mostly CD4+, lymphocytes. T-cell clonality was demonstrated in four of eight cases. The mean duration of the lesions before diagnosis was 17.1 months. The course was indolent in most of the cases (median follow up: 18 months), whilst progression to overt FMF was noted in two patients.
Limitations: The number of cases is small and follow up relatively short.
Conclusions: Spiky FMF is a deceptive clinicopathologic presentation of FMF that has been poorly described and that can mimic numerous follicular disorders.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Dermatology Clinic
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2015
Deposited On:13 Feb 2015 13:08
Last Modified:05 Apr 2016 18:51
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0303-6987
Publisher DOI:https://doi.org/10.1111/Cup.12399
PubMed ID:25355400

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