妊娠時に発症した頸髄黒色腫の1例

Melanoma of the Spinal Cord in Pregnancy

Ⅰ．緒言

　原発性脊髄黒色腫は，極めて稀な疾患である．黒色腫がneural crest由来のmelanocyteを母地とするならば，中枢神経系にも発生するのは，むしろ当然と言わねばならない．しかしながら，皮膚以外の部位に発症する事は比較的稀であり，中枢神経系に原発した黒色腫は，文献上，現在まで百数十例を数えるに過ぎず，本邦では，20数例を見るに止まる．中でも，原発性脊髄黒色腫の報告は，更に少ない．

　我々は，妊娠後期に発症した，第2頸椎レベルの原発性脊髄黒色腫の1例を経験した．ここに本症例を報告すると共に，少しく文献的考察を加えて見たい．

A case of spinal cord melanoma at the level of C₂ was reported. A 27-year-old house-wife, in the 8th. month of an uncomplicated pregnancy, complained of motor weakness and sensory impairment in the left arm. Then, left lower limb and right upper and lower limbs were gradually involved and she suffered from tetraplegia when she was first admitted to our hospital about two months after the beginning of her symptoms. Neurological and roentogenological examinations revealed an upper cervical intradural extramedullary tumor, and laminectomy from C₁ to C₄ was performed.