The development of both a T- and B-cell lymphoproliferative disorder in one patient is an unlikely coincidence due to the low prevalence of each malignancy. We report a 65-year-old man with a previously documented history of B hairy cell leukemia, who presented with a new-onset acneiform eruption of his scalp, face, trunk, back, and extremities. Routine pathology of the skin lesions with immuno...

Folliculotropic mycosis fungoides (FMF) is a variant of (MF) noted in the World Health Organization — European Research and Treatment Cancer (WHO/EORTC) update 2018. FMF characterized as subtype with worse prognosis than classic MF. The situation changed recently when authorities proposed dividing into two prognostically different subtypes: indolent aggressive. Indolent allows 92% patients to s...

Mycosis fungoides is the most common form of cutaneous T-cell lymphoma, and it rarely exhibits predilection for hair follicle and eccrine gland infiltration. Here, we present 2 similar cases that display folliculotropism with varying amounts of follicular mucinosis, with and without syringotropism. The features observed in both cases were cystic, comedo-like, acneiform lesions; generalized invo...

Large cell transformation (LCT) in mycosis fungoides (MF) is generally associated with an aggressive clinical course and poor survival, requiring aggressive therapeutic approach. However, a proportion of cases may follow an indolent clinical course. To identify prognostic factors, we analyzed the prognostic relevance of clinical, histologic, and immunophenotypical features in a large cohort of ...

Abnormal hair development and regeneration occurs in some skin diseases, including lymphomas when hair follicles are eliminated. Otherwise, neoplastic cells, both malignant and benign, local occurring and metastatic, can cause alopecia of the scalp. In lymphomas alopecia can develop due to direct infiltration by the disease, or it may be a secondary or paraneoplastic manifestation. Total -body ...

Mycosis fungoides (MF), a low-grade lymphoproliferative disorder, is the most common type of cutaneous T-cell lymphoma. Typically, neoplastic T cells localize to the skin and produce patches, plaques, tumours or erythroderma. Diagnosis of MF can be difficult due to highly variable presentations and the sometimes nonspecific nature of histological findings. Molecular biology has improved the dia...

BACKGROUND Since the original designation of folliculotropic mycosis fungoides (FMF) as a distinct entity, there has been an increasing appreciation of the broad clinical and histopathologic spectrum with which this disease can present. However, there have been few large histologic studies characterizing the various histopathologic patterns. OBJECTIVE In this study, we attempt to describe the...