Physiological Uptake of Soft Tissue in Positron Emission Tomography May Mimic Local Recurrelce of Nasopharyn-Geal Carcinoma: A Case Report

正子斷層攝影之頸部軟組織生理性顯影類似鼻咽癌局部復發：一病例報告

曾玉華(Yuk-Wah Tsang) ； 陳遠光(Yen-Kung Chen) ； 季匡華(Kwan-Hwa Chi)

《放射治療與腫瘤學》 16卷1期 (2009/03) Pp. 79-84

https://doi.org/10.6316/TRO/200916(1)79

摘要

本文報告一例放射治療後鼻咽癌病患，其追蹤檢查之正子斷層攝影顯示雙側頸部軟組織有明類類影，疑似局部復發，切片未發現癌細胞且追蹤一年未復發。
正子斷層攝影應用於腫瘤學日益增加，生理性顯影發生在頸部肌肉、脂肪、扁桃腺、側咽窩或唾液腺等軟組織。生理性顯影狀似局部復發，可能造成偽陽性判讀，標準攝取值(SUV)、顯影形狀及形態上之政變可幫助鑑別診斷。

關鍵字

正子攝影 ； 鼻咽癌 ； 局部復發

並列摘要

This paper reported a case of post-radiation nasopharyngeal carcinoma whose follow-op positive emission tomography/computed tomography (PET/CT) scan showed physiological uptake in bilateral neck soft tissue. This image pattern mimicked local recurrence. Biopsy revealed no malignant cells. One-year follow-op showed free of recurrence.
PET/CT scan has been increasingly used in oncology. Physiological uptake may happen n soft tissues of neck such as muscles, fat, tonsils, lateral pharyngeal recess and salivary glands. Physiological uptake may mimic local recurrence and cause false-positive reading. Standard uptake value (SUV), image pattern and morphology change may help in differential diagnosis.

並列關鍵字

PET/CT ； Nasopharyngeal carcinoma ； Local-regional recurrence