Ewing’s sarcoma/primitive neuroectodermal tumor (ES/PNET) of the bladder in an adolescent: a case description

[摘要] Extraosseous Ewing’s sarcoma/primitive neuroectodermaltumors (ES/PNET) are a relatively rare group of malignanttumors (1,2) that occur in children and adolescents agedbetween 10–20 years (3). ES/PNET are highly aggressiveand generally portend poor prognoses (4) because of thelack of clear clinical symptoms during the early stages.These tumors frequently occur in the extremities andretroperitoneum (5,6), and are seldom in the internalorgans. ES/PNET of the bladder is rare, with only a fewreports available at present (7,8). We report a case ofprimary ES of the bladder that occurred in a 19-year-oldfemale.

[学科分类] 外科医学