(Last Updated On: May 4, 2019)
Authors: Cara Lynn Marie N. Chia, MD, Johannes F. Dayrit, MD, FPDS, Christine Marie N. Chia-Acosta, MD, DPDS


Introduction: Folliculotropic mycosis fungoides is a rare and aggressive subtype of mycosis fungoides characterized by small to medium-sized malignant T-cells that typically infiltrate the hair follicle. It represents 4% of primary cutaneous lymphomas and less than 10% of patients with MF.
Case Summary: We report 2 cases of 80-year old female, who presented with a 3-year history of an erythematous plaque on the left infraorbital area and forehead, and the other with an 8-month history of multiple erythematous indurated plaques on the left cheek, left eyebrow and malar area. Clinical presentation, histopathology and immunohistochemistry findings revealed a diagnosis of folliculotropic mycosis fungoides.
Conclusion: Folliculotropic mycosis fungoides has distinct clinical and microscopic features. Evaluation of clinical, pathologic, and immunophenotypic findings are important to identify this rare form of cutaneous T-cell lymphoma.



Chia CLN, Dayrit J, Chia-Acosta CM. Follicular mycosis fungoides: A report of 2 cases in Filipino octogenarians. J Phil Dermatol Soc. 2018; 27(1): 71-4



Mycosis fungoides, cutaneous T-cell lymphoma, Follicular mucinosis

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