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KMID : 0032220070190010038
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Annals of Dermatology
2007 Volume.19 No. 1 p.38 ~ p.42
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Three Cases of Congenital Smooth Muscle Hamartomas
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Kim Jung-Keun
Park Tae-Ho
Yoo Jae-Hak
Kim Kea-Jeung
Park Hyang-Joon
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Abstract
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Congenital smooth muscle hamartomas (CSMHs) usually appear at birth as skin-colored or slightly hyperpigmented patches or plaques on the trunk or extremities and are often covered by and increased amount of vellus hair. Histopathologically, it represents a proliferation of smooth muscle bundles within the dermis(1,2). We herein report on three cases of localized CSMHs; Case 1 was a 2-month-old boy who presented with a skin-colored, 6x5cm-sized plaque with folds, hypertrichosis and pseudo- Darier’s sign on the face, an unusual site. But there was no hyperpigmentation. Case 2 and 3 were both 1-month-old boys who presented with typical hyperpigmented, hairy plaques on the lateral aspect of the left thigh.
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KEYWORD
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Congenital Smooth Muscle Hamartoma, Hypertrichosis, Pseudo-Darier’s sign
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