사구체종양으로 오인된 조갑하 결절종 = Subungual Ganglion Cyst Mimicking Glomus Tumor

다국어 초록 (Multilingual Abstract)

Subungual masses accompanying nail deformity are of common occurrence and uniquely confirmed by histopathologic examination postoperatively. Although glomus tumor is most frequently diagnosed with its specific clinical triad, other rarer diagnoses have also been reported. Though ganglion cysts are predominantly found around the distal phalangeal joint as a mucous cyst and myxoid cyst, they might also appear as a subungual mass accompanied by nail deformity thereby mimicking the glomus tumor. A 54-year-old woman visited our outpatient clinic with nail deformity and pain on the tip of the right thumb. She had a history of nail root injury on her right thumb which occurred 3 months back at a nail shop. Physical examination revealed a convex point with tenderness on the right thumbnail. Doppler ultrasonography revealed the presence of 0.43×0.26×0.53 cm3 sized non-specific cystic lesion with hypoechogenicity and no abnormal vascularity. Complete excision of the cyst was performed and histopathology revealed a ganglion cyst. Subungual ganglion cyst is rarely occurred and known to be usually asymptomatic. Herein, we report a case of ganglion cyst of subungual area which was mistakenly diagnosed as a glomus tumor preoperatively.

국문 초록 (Abstract)

손발톱 변형을 동반한 조갑하 덩어리는 흔히 발생하며 수술 후 병리조직학적 검사에 의해 유일하게 확인된다. 사구체종양(glomus tumor)은 특정 임상적 세징후로 가장 빈번하게 진단되지만 다른 드문 종양으로의 진단도 보고된다. 결절종(ganglion cyst)은 주로 원위지 골간관절 주위에서 점액 낭종 및 점액성 낭종으로 발견되지만, 손톱 기형을 동반한 조갑하 덩어리로도 나타날 수 있어 사구체종양으로 오인될 수 있다. 저자들은 54세 여성의 우측 엄지손가락 윈위지부에서 손톱 기형과 통증으로 수술 전 사구체종양으로 진단 결정되었던 조갑하 결절종 1예를 경험하고 보고 한다.

참고문헌 (Reference)

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