Department of Dermatology, Birmingham Children's Hospital NHS Foundation Trust, Birmingham, UK.
Clin Exp Dermatol. 2013 Oct;38(7):751-3. doi: 10.1111/ced.12137. Epub 2013 Jun 13.
Smooth muscle hamartoma (SMH) is a benign congenital or acquired hamartomatous lesion comprising a dermal proliferation of smooth muscle bundles. We report a case of congenital SMH with an unusual clinical appearance. A 3-year-old girl presented with an asymptomatic atrophic linear lesion on the posterior surface of her right thigh, which had been present since birth. The striking resemblance to a vascular lesion initially led to the erroneous clinical diagnosis of atrophic reticulate vascular naevus. However, a skin biopsy showed typical features of SMH. To our knowledge, SMH with linear configuration has only been described in two previous cases, and there are no previous reports of SMH with such a marked resemblance to a vascular lesion.
平滑肌错构瘤（SMH）是一种良性先天性或获得性错构瘤性病变，由真皮中平滑肌束的增生组成。我们报告一例具有不寻常临床表现的先天性 SMH 病例。一名 3 岁女孩，出生后即出现右大腿后侧无症状性萎缩性线性皮损。其与血管病变惊人的相似性最初导致了错误的临床诊断：萎缩性网状血管痣。然而，皮肤活检显示出典型的 SMH 特征。据我们所知，仅以前有两例报道过具有线性形态的 SMH，且以前没有报道过与血管病变如此相似的 SMH。
