眼窩内静脈瘤の1症例

A Girl with Intraorbital Varix:A Case Report

Ⅰ．はじめに

　眼窩内腫瘍性病変は比較的稀な疾患である．その中でも眼窩内静脈瘤の報告は少ない．今回われわれは若年で発症し，経頭蓋到達法で治療を行ったが静脈瘤を摘出することなく眼症状が改善した眼窩内静脈瘤の症例を経験したので報告する．

　We report a case of intraorbital varix. A 16-year-old girl showed sudden left-sided exophthalmos after vomiting. After several episodes of vomiting, she developed complete loss of vision in the left eye, followed by orbital pain, disruption of eye movement, and periorbital swelling. No change in symptoms or signs was observed after the Valsalva maneuver or jugular vein compression. Computed tomography（CT), magnetic resonance imaging（MRI), and angiography were inconclusive. Transcranial surgery revealed a large varix near the optic nerve. The lesion could not be completely resected because the orbital fat interfered with its complete visualization. We cauterized the lesion to reduce its volume. The patient's symptoms improved markedly after surgery and cauterization. Thus, cauterization appears to be an effective strategy to reduce the volume of an unresectable intraorbital varix.