Abstract
ABSTRACT Objective: Polycythemia is a rare and often unrecognized manifestation of a functional gonadotroph adenoma. Although silent gonadotroph macroadenomas are relatively common, functional gonadotroph adenomas are rare. Methods: We report a case of a 66-year-old patient treated for chronic idiopathic polycythemia for at least 10 years, in whom a large pituitary lesion in a cerebral computed tomography (CT) scan was incidentally discovered in a cerebral computed tomography (CT) scan. Results: The patient presented with nasal erythromelalgia and facial erythrosis while being treated with hydroxyurea for primary polycythemia. CT findings and biochemical analyses revealed a large pituitary tumor and increased testosterone and luteinizing hormone (LH) levels. Following resection of the tumor, immunostaining confirmed positive staining for follicle-stimulating hormone and LH, leading to the diagnosis of a functional gonadotroph adenoma. Due to persistent radiologic and biochemical disease after surgical res...
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