Unilateral Cryptorchidism Mimicking Inguinal Lymphadenopathy on FDG PET/CT

正子造影單側隱睪症極相似腹股溝淋巴腺病

許文齡(Wen-Ling Hsu) ； 張淑敏(Shu-Min Chang) ； 張晉銓(Chin-Chuan Chang)

《核子醫學暨分子影像雜誌》 30卷1期 (2017/03) Pp. 20-24

https://doi.org/10.6332/ANMMI.3001.003

摘要

Cryptorchidism is the absence of one or both testes from the scrotum. Confirmative diagnosis after adulthood is rare. A 21-year-old man was accidentally diagnosed with unilateral cryptorchidism after a whole-body FDG PET/CT scan for a health check-up. On the imaging, there was no physiological uptake in the left scrotum. On the contrary, a low grade FDG-avid lesion was noted in the left inguinal region. A follow-up urological ultrasound examination and monitoring confirmed the diagnosis. This case reminds us that an abnormal FDG uptake in a man's inguinal region should prompt us to consider examination of undescended testes to avoid misdiagnosing the case as some other lymphoid disease.

關鍵字

cryptorchidism ； F-18 FDG ； PET/CT ； undescended testis

並列摘要

隱睪症是在陰囊中缺少一或兩個睪丸，成年後確診實屬罕見。一個21歲男性於全身氟化去氧葡萄糖正子斷層/電腦斷層造影之健康檢查中，意外診斷出單側隱睪症。影像中發現左側陰囊無睪丸，相反地，左側腹股溝有低度累積病灶。後續的病史詢問和泌尿科超音波檢查確定此診斷。它提醒我們，男性腹股溝出現氟化去氧葡萄糖異常攝取時應考慮隱睪症，以避免誤診為其他淋巴疾病。

並列關鍵字

隱睪症 ； 氟18氟化去氧葡萄糖 ； 正子斷層/電腦斷層 ； 睪丸未降