稀有な形を示す翼状頸の1手術治験とその周辺の皮膚科的疾患，特に皮膚弛緩症について

A OPERATION CASE OF WING-SHAPED NECK AND DISCUSSIONS ABOUT ITS CAUSE ASSOCIATED WITH DERMATOCHALASIS

はじめに

　翼状頸ならびに皮膚弛緩症について，欧米では数多くの報告をみるが，本邦の文献は少なく，われわれの検索した範囲では，皮膚弛緩症に起因する翼状頸の報告はない。

　今回，われわれは皮膚弛緩症を原因とし，しかも右に偏位したきわめて稀な形をとる翼状頸の形成手術を行なう機会をえたので，その概要を報告するとともに，翼状頸の概念と定義，その成因，皮膚弛緩症，治療などについて，検討を加えてみたい。

A one-year-and-6-month-old boy of this disease was reported. His skin of neck and nape was loosely attached to the underlying tissue and had such a great laxation that the semicylindric fold, a wing-shaped neck, was formed when his head was rotated.

Histologic specimen showed fragmented elastic fibers.

The skin lesions were bilateral, but the change was severer on the right side. No other mal-formation was proved.

This case belongs to Status-Bonnevie unilateralis according to the Rossi's classification of the wing-shaped neck. It is a rare condition due to cutis laxa.

By the resection of the excess skin, the wing-shaped neck disappeared. The wing-shaped neck is caused by two different kinds of cause, namely, laxation and excess versus lack, and tension of the skin.