眼球突出をきたし，10数年を経過した眼窩内器質化血腫の1例

Unilateral Exophthalmos caused by Organized Hematoma of the Orbit : Report of a Case

Ⅰ．はじめに

　眼窩内に何らかの原因で生じた血腫は，比較的急速に吸収され，消失するのが常である．これが血腫として存続し，器質化するのはきわめて稀なことである．眼窩内器質化血腫（organized hematoma，blood cyst，hernatic cyst，hematocele）は，文献にみても我々が調べ得た限りでは，欧米に18の報告があるのみで，本邦ではその報告を未だみない^19）．この器質化血腫も他の眼窩内腫瘍と同様に，眼球突出，眼球運動障害，視力障害などの眼症状を示すが，その特有な徴候はない．我々は，発症より10数年を経過した眼窩内器質化血腫を摘出する機会を得たので，この症例を報告するとともに，文献的考察の上に本症例の特異性に触れ，いわゆる眼窩内腫瘤を扱う際に一考を要する病変であることを強調する．

The authors reported a case with unilateral proptosis of over ten years' duration due to organized hematoma of the orbit. It has generally been accepted that any given hemorrhage within the orbit can be resolved in a relatively short period of time. Persistent intraorbital hematoma, therefore, in the form of organized hematoma is very unusual in incidence and has been reported very few in the literature.

Our patient presented himself with a ten-and-several-year history of unilateral exophthalmos, limited ocular movement and decreased visual acuity on the involved side.