Abstract
Gynecomastia is benign enlargement of the male breast and is commonly drug induced. Various drugs are responsible and chemotherapeutic drugs can also cause gynecomastia. Cladribine is now widely used for the treatment of hairy cell leukaemia. We present a case report of development of unilateral gynecomastia in a case of hairy cell leukaemia treated with cladribine and question whether this was induced by the chemotherapy.
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