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Hyperpigmented Mycosis Fungoides Masquerading as Longstanding Lichen Planus Pigmentosus: A Diagnostic Pitfall.
Am J Dermatopathol
August 2023
Yosemite Pathology Medical Group, Modesto, CA.
Background: Mycosis fungoides (MF) is a rare primary cutaneous T-cell lymphoma, accounting for 50%-60% of all cutaneous T-cell lymphoma cases. It has a prevalence of approximately 5-6 cases per 1 million people annually and a higher incidence in dark-skinned populations.
Case Presentation: We report a case of hyperpigmented MF in a 72-year-old dark-skinned man with a 5-year history of progressive, widespread poikilodermatous patches and thin plaques on the back and bilateral legs.
Poikilodermatous lichen planus pigmentosus: A unique variant of a common disease.
J Cosmet Dermatol
October 2022
Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Poikilodermatous lichen planus pigmentosus: A clinico-histopathological study.
J Dtsch Dermatol Ges
February 2021
Dermatology, Venereology and Andrology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Reticulate Pigmentation Associated with Scarring Alopecia in an Elderly Woman: An Unusual Manifestation of Lichen Planus Pigmentosus.
Indian J Dermatol
January 2016
Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
A 70-year-old woman presented with generalized reticulate pigmentation, scarring alopecia, and few discrete, violaceous plaques over the trunk and forearm. Dermoscopic evaluation of the reticulate plaque showed reticulate hyperpigmentation with multiple telangiectasias, and skin biopsy showed lichenoid interface dermatitis with marked pigment incontinence. Thus, a final diagnosis of poikiloderma due to lichen planus pigmentosus was considered.
View Article and Find Full Text PDFLichenoid tissue reaction (LTR) is characterised by epidermal basal cell damage which takes the form of liquefaction degeneration or cell death either apoptosis or necrosis with an associated cascade of histologic events in epidermis and dermis. LTR is found in clinical conditions with lichenoid poikilodermatous and pigmentary dermatoses. A selected group of fifty lichenoid and pigmentary dermatoses such as Lichen planus (LP) Discoid lupus erythematosus (DLE) Lichenoid melanodermatitis (LM) and Lichen nitidus (LN) were studied.
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