腹膜后外周原始神经外胚层肿瘤的 FDG PET/CT。

FDG PET/CT in peripheral primitive neuroectodermal tumor of the retroperitoneum.

机构信息

From the *Departments of Nuclear Medicine, †Pathology, and ‡Radiology, Changhai Hospital, Shanghai, China.

出版信息

Clin Nucl Med. 2014 Aug;39(8):707-10. doi: 10.1097/RLU.0b013e318292f38e.

Abstract

Peripheral primitive neuroectodermal tumor (pPNET) is a very aggressive neoplasm that predominantly affects children and adolescents with a poor prognosis. A 35-year-old woman presented with right upper abdominal pain for 2 weeks. Abdominal enhanced CT showed a large cystic-solid tumor in the left retroperitoneum, with progressive enhanced papillary projections of the wall. FDG PET/CT showed strong FDG uptake of the cystic wall with SUVmax of 17.2. The patient underwent completed resection of the tumor. pPNET was confirmed by pathology. The high FDG uptake of the tumor may be related to its high proliferative index revealed by Ki-67.

摘要

外周原始神经外胚层肿瘤（pPNET）是一种非常侵袭性的肿瘤，主要影响儿童和青少年，预后不良。一名 35 岁女性因右上腹痛 2 周就诊。腹部增强 CT 显示左腹膜后有一个大的囊实性肿瘤，壁上有进行性增强的乳头状突起。FDG PET/CT 显示囊壁摄取 FDG 明显，SUVmax 为 17.2。患者接受了肿瘤的完全切除术。病理证实为 pPNET。肿瘤的 FDG 摄取较高可能与其 Ki-67 显示的高增殖指数有关。