Dapsone syndrome is a rare hypersensitivity reaction to dapsone and is characterized by high fever, papular or exfoliative dermatitis, progressing to liver toxicity and generalized lymphadenopathy, resembling a mononucleosis infection. We report a patient who developed acute renal failure, as well as other complications characteristic of dapsone syndrome, during leprosy treatment. Renal involve...

To the Editor: Dermatopathic lymphadenitis (DL) represents a rare benign lymphatic hyperplasia commonly associated with exfoliative or eczematoid dermatitis. DL was also reported to be a potential mimicker of lymphoma.[1] Here, we report the 18F‐fluorodeoxyglucose (18F‐FDG) positron emission tomography/ computer tomography (PET/CT) results and the histological findings of a 40‐year‐old female p...

Sezary syndrome, one of the cutaneous T-cell lymphomas, is a rare cause of generalised exfoliative dermatitis. We report a case of Sezary syndrome in a 64-year-old man who had persistent erythroderma for four years and who subsequently developed inguinal lymphadenopathy and marked leukocytosis. We review the pathomechanism and management of this rare condition.