頭頂部congenital dermal sinusの1例

A Case of Congenital Dermal Sinus in the Parietal Region

Ⅰ．はじめに

　テント上congenital dermal sinusは，比較的，稀である^3,11）．しかも，その大部分は頭頂後頭部と，後頭蓋窩との間に関係をもっている．さらに大脳鎌内に認められるものは，きわめて稀れである^3,11）．われわれは，3歳女児で，頭頂部正中線上で，しかも大脳鎌内のcon-genital dermal sinusの症例を，経験したので報告する．

A congenital dermal sinus at the midline of the parietal region, which extends into the falx, is relatively rare. The following case is illustrative. A 3-year-old girl was noticed by her parents to have tumor at the midline of the parietal region without other disturbances and com-plaints. This girl had the normal mental and motor de-velopment, and was admitted to our clinic for cosmetic surgery. A round, elastic soft tumor, roughly 1×1×1 cm in diameter, was located at the midline of the parietal region. This tumor had a port wine cutaneous discolo-ration and an absence of normal hair growth in this area.