Mycosis fungoides (MF) on extremely rare occasions is associated with vesiculobullous eruptions. We describe a 74-year-old man with previous documented histopathologic diagnosis of poikilodermic-type MF who recently developed flaccid acral bullae on erythematous MF plaques and on normal appearing skin. Histopathology and direct immunofluorescent studies revealed extensive lichenoid changes with intraepidermal bullae. Atypical lymphocyte infiltration was present at the dermoepidermal junction, in bulla fluid, and on the peripheral blood smear, but in lymph node and bone marrow tissue specimens atypical lymphocytes were absent. The plausible cause of these blister formations in cutaneous lymphoma bullosa may be from excessive epidermotropism or toxicity of the tumoral infiltrate.
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Am J Dermatopathol
February 2025
Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY.
Methotrexate (MTX), an antimetabolite targeting certain autoimmune conditions and various hematologic malignancies, has been associated with iatrogenic lymphoproliferative disease (LPD) primarily of B-cell lineage. Less commonly are T-cell neoplasms where primary skin involvement is considered rare. Three cases were encountered in the medical practice of one of the authors.
View Article and Find Full Text PDFJAAD Case Rep
February 2025
Department of Dermatology, Cliniques universitaires Saint-Luc UCLouvain, Brussels, Belgium.
Rev Paul Pediatr
January 2025
Universidade do Estado do Pará, Belém, PA, Brazil.
Objective: To highlight the importance of early recognition of hypopigmented mycosis fungoides (HMF) in cases of cutaneous hypochromia in children, with a view to an effective diagnostic and therapeutic approach.
Case Description: Two cases of HMF in children are reported. The first case involves an eight-year-old boy with hypochromic macules on the trunk and root of the upper and lower limbs, while the second case is a six-year-old boy with widespread hypochromic patches.
J Dtsch Dermatol Ges
January 2025
Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Background And Objectives: Patients with cutaneous lymphomas (CL) are at an increased risk of developing secondary malignancies. This study aimed to assess the frequency of association between CL and Kaposi sarcoma (KS) and to identify factors that may promote the co-occurrence of these two diseases.
Patients And Methods: On January 25, 2024, we conducted a systematic search of four electronic medical databases to identify all published cases of KS associated with CL.
Acta Dermatovenerol Croat
November 2024
Agata Janowska, MD, Department of Dermatology, , University of Pisa, Via Roma 67, 56126, Pisa, Italy; Phone: +39 050 992436, Fax: +39 050 992556,
Mycosis fungoides (MF) represent the most frequent form of cutaneous T-cell lymphoma (CTCL). Chlormethine gel has been approved as first-line therapy in MF. The classification of early forms of MF is clinically and histologically complex even for experienced clinicians.
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