title: Fine-needle aspiration diagnosis of extragonadal choriocarcinoma with immunoperoxidase studies.
abstract: A case of extragonadal choriocarcinoma in a 30-yr-old man was diagnosed by fine-needle aspiration (FNA) biopsy with immunoperoxidase studies. FNA diagnosis in this case resulted in prompt treatment of rapidly growing metastases without the need for an invasive diagnostic procedure.
authors.affiliation: Department of Pathology, University of Maryland School of Medicine, Baltimore.
authors.forename: L A
authors.initials: LA
authors.lastname: Hoover
authors.forename: M A
authors.initials: MA
authors.lastname: Hafiz
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D002822:Choriocarcinoma / Q000175:diagnosis*; D003581:Cytodiagnosis; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*