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Pudendal nerve entrapment syndrome caused by ganglion cysts along the pudendal nerve

Yeungnam University Journal of Medicine 2021년 38권 2호 p.148 ~ 151
김영제, 김두환,
소속 상세정보
김영제 ( Kim Young-Je ) - Keimyung University School of Medicine Dongsan Medical Center Department of Rehabilitation Medicine
김두환 ( Kim Du-Hwan ) - Chung-Ang University College of Medicine Chung-Ang University Hospital Department of Physical Medicine and Rehabilitation

Abstract


Pudendal nerve entrapment (PNE) syndrome refers to the condition in which the pudendal nerve is entrapped or compressed. Reported cases of PNE associated with ganglion cysts are rare. Deep gluteal syndrome (DGS) is defined as compression of the sciatic or pudendal nerve due to a non-discogenic pelvic lesion. We report a case of PNE caused by compression from ganglion cysts and treated with steroid injection; we discuss this case in the context of DGS. A 77-year-old woman presented with a 3-month history of tingling and burning sensations in the left buttock and perineal area. Ultrasonography showed ganglion cystic lesions at the subgluteal space. Magnetic resonance imaging revealed cystic lesions along the pudendal nerve from below the piriformis to the Alcock’s canal and a full-thickness tear of the proximal hamstring tendon. Aspiration of the cysts did not yield any material. We then injected steroid into the cysts, which resolved her symptoms. Steroid injection into a ganglion cyst should be considered as a treatment option for PNE caused by ganglion cysts.

키워드

Corticosteroids; Ganglion cysts; Nerve entrapment; Pudendal nerve

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