Six Cases of Superficial Digital Arteriovenous Malformation

DOI Web Site

Bibliographic Information

Other Title
  • 指趾表在性動静脈奇形6例の検討
  • シシヒョウザイセイドウ ジョウミャク キケイ 6レイ ノ ケントウ

Search this article

Abstract

Six cases of superficial digital arteriovenous malformations were treated at Department of Dermatology of Hyogo Cancer Center between 1993 and 2009 (five cases on fingers, one case on toe). The lesions were about 10 mm reddish macules consisting of red dots and linear erythema. In all cases, there was no specific history of trauma. Histopathologically, there were an increased number of branching irregularly-shaped blood vessels displaying variable thicknesses in the mid to deep dermis. Even in the same vessel, the vessel wall consisted of an uneven mixture of thin and thick-walled parts that did not exist in the normal tissue. With special and immuno-histochemical staining, neither the thickness of the smooth muscle of vessel walls nor the distribution of the elastic lamina were uniform, indicating that the thick-walled parts of vessel walls had arterial characteristics and the thin-walled parts, venous characteristics. No arteriovenous anastomoses could be found even in serial sections. These findings are essentially identical to the pathological features of cerebral arteriovenous malformation, indicating that the skin lesions may be also congenital and that post-traumatic acquired origin is unlikely. These lesions composed of anomalous vessels in the dermis of fingers or toes may be referred to as “superficial digital arteriovenous malformation”.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top