Lin Cheng-Li, Huang Ming-Tung, Lin Chii-Jeng
Department of Orthopedics, National Cheng Kung University Medical Center, Tainan, Taiwan.
J Med Case Rep. 2008 Dec 16;2:386. doi: 10.1186/1752-1947-2-386.
Snapping hip, or coxa saltans, is defined as a clinical condition where a usually painful, audible snap occurs during hip flexion and extension. Its causes can be divided into external, internal or intra-articular origin. Accurate diagnosis is a prerequisite to successful treatment. We report a rare cause of snapping hip which is different from any previously reported cases.
A 23-year-old man presented to us with right hip pain of more than 10 years duration. Atrophy of the right gluteus maximus with snapping and tenderness were also noted. The imaging study revealed a focal intramuscular lesion in the lateral portion of the right gluteus maximus muscle. Surgery was performed and pathological examination concluded this mass to be a venous hemangioma.
Intramuscular hemangioma, though rare, should be considered in the differential diagnosis of a snapping hip even though muscle fibrosis is most frequently encountered.
弹响髋，又称跳跃性髋，被定义为一种临床病症，即在髋关节屈伸过程中通常会出现疼痛且可闻及弹响。其病因可分为外部、内部或关节内源性。准确诊断是成功治疗的前提。我们报告一例罕见的弹响髋病因，与既往报道的任何病例均不同。
一名23岁男性因右髋部疼痛10余年前来就诊。还发现右臀大肌萎缩伴弹响及压痛。影像学检查显示右臀大肌外侧部分有一个局灶性肌内病变。进行了手术，病理检查确诊该肿块为静脉性血管瘤。
肌内血管瘤虽罕见，但在弹响髋的鉴别诊断中应予以考虑，尽管最常遇到的是肌肉纤维化。
