疼痛で初発した球結膜粘液腫の1例

Ocular pain as the initial sign of conjunctival myxoma

　疼痛を伴った球結膜粘液腫の1例を報告した。54歳女性の左眼上方の球結膜下の平滑な半透明な腫瘍で，組織学的にはアルシアン・ブルーに染色される粘液が豊富で，紡錘形で，細胞質突起をもち，細胞質内に空胞を認める細胞や細網線維を認めた。さらにリンパ球の浸潤と出血がみられ，長期間無症候性に経過した粘液腫に炎症性の疼痛を生じたものと考えられた。腫瘍は全摘出されて，現在まで再発を認めていない。結膜粘液腫の報告は少なく，しかも疼痛を伴う症例はみられず，きわめて稀な1例であった。

A 54-year-old female presented with painful lesion in the upper bulbar conjunctiva in the left eye. Slitlamp examination showed dilated conjun-ctival vessels and a semitranslucent mobile mass in the subconjunctival space. The tumor was surgi-cally removed. Histopathologically, the stroma was composed of massive mucous substance. Tumor cells were sparse and were spindle-shaped with elongated cytoplasmic processes. Cytoplasmic vacuoles were occasionally present in the stromal cells. The stroma stained with Alcian blue and was digested after pretreatment with hyluronidase. There has been no recurrence during 48 months after surgical removal.