title: Malignant seeding of the tract after thin-needle aspiration biopsy.
abstract: Fine-needle aspiration biopsy is an established technique for cytodiagnosis of malignant neoplasms, yielding a high rate of positive tissue with negligible local sequelae. The authors report the first instance known to them of needle tract seeding following this biopsy technique in a patient with an unresectable pancreatic carcinoma. Because of the rarity of this occurrence, the procedural indications remain unaltered.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods; D003581:Cytodiagnosis; D006801:Humans; D008297:Male; D009339:Needles; D009366:Neoplasm Seeding; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012306:Risk; D014057:Tomography, X-Ray Computed