Cutaneous metaplastic synovial cyst in the buttock: A comprehensive analysis of etiologic, clinical, ultrasonic, and pathological aspects

IF 2.3 4区 医学 Q2 DERMATOLOGY
Li-Cheng Tsai, Chih-Jung Hsu
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引用次数: 0

Abstract

Cutaneous metaplastic synovial cyst (CMSC) is a rare cutaneous cystic lesion, which frequently occurs subsequent to trauma or surgery, forming through the reparative and healing process. It is often misdiagnosed as foreign body granuloma or recurrent epidermoid cyst. Histologically, it is characterized by a cystic structure with multiple villous projections pointing toward the cystic space, lined by cells resembling hyperplastic synovium. To date, only 32 cases have been reported in the English literature. In this article, we present two cases of CMSC with distinctive clinical features and ultrasonic findings. Furthermore, we found only three case reports of CMSC in the gluteal region. All of these cases were elderly patients and developed CMSC at the medial aspect of the buttock. Based on their unique clinical and ultrasonic characteristics, we propose that CMSC in the buttock may be considered a distinct subgroup within CMSC, demonstrating a spectrum of degenerative diseases along with ischiogluteal bursitis.

臀部皮肤变性滑膜囊肿:病因、临床、超声波和病理方面的综合分析
皮肤变性滑膜囊肿(CMSC)是一种罕见的皮肤囊性病变,常发生于创伤或手术后,在修复和愈合过程中形成。它常被误诊为异物肉芽肿或复发性表皮样囊肿。从组织学角度看,它的特征是囊性结构,多个绒毛状突起指向囊腔,内衬细胞类似增生的滑膜。迄今为止,英文文献中仅报道了 32 个病例。在本文中,我们介绍了两例具有独特临床特征和超声检查结果的 CMSC 病例。此外,我们发现仅有三例关于臀部 CMSC 的报道。这些病例均为老年患者,臀部内侧出现 CMSC。根据其独特的临床和超声波特征,我们认为臀部 CMSC 可被视为 CMSC 中的一个独特亚组,表现出一系列退行性疾病和峡部滑囊炎。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Dermatologica Sinica
Dermatologica Sinica DERMATOLOGY-
CiteScore
2.80
自引率
20.00%
发文量
28
审稿时长
>12 weeks
期刊介绍: Dermatologica Sinica aims to publish high quality scientific research in the field of dermatology, with the goal of promoting and disseminating dermatological-related medical science knowledge to improve global health. Articles on clinical, laboratory, educational, and social research in dermatology and other related fields that are of interest to the medical profession are eligible for consideration. Review articles, original articles, brief reports, case reports and correspondence are accepted.
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