Delayed chocolate cyst after blow-out fracture.

Sutula FC, Palu RN
Ophthalmic plastic and reconstructive surgery · 1991 · doi:10.1097/00002341-199112000-00006 · PMID:1764424
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A case report describes a patient who developed a hematic cyst 21 years after orbital floor repair, revealing that silicone implant migration caused the delayed formation of the chocolate cyst.

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This case report describes a patient who developed a hematic or "chocolate" cyst in the orbit twenty-one years after undergoing surgical repair for a blow-out fracture. The individual remained asymptomatic for the first decade post-surgery before presenting with signs of recurrent myositis, which prompted further surgical intervention. During the procedure, researchers identified that the migration of the silicone implant used in the original repair had produced the cystic accumulation of blood and its breakdown products. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Case Report: PDF Only Delayed Chocolate Cyst After Blow-Out Fracture - Francis C. Sutula - Richard N. Palu Ophthalmic Plastic & Reconstructive Surgery 7(4):p 267-272, December 1991. Hematic, or “chocolate,” cysts are accumulations of blood and its breakdown products within cystic spaces. They have been reported as being associated with lesions having cystic spaces (lymphangiomas, hemangiomas), spontaneously and immediately following trauma. We report a patient who had a blow-out fracture repair 21 years before the discovery of her chocolate cyst. She had been free of symptoms for the first 10 years after her orbital floor repair. She then developed signs of recurrent myositis with increasing symptoms, which finally led to surgical intervention. At surgery the migration of the silicone implant produced the chocolate cyst. Copyright ©1991The American Society of Opthalmic Plastic and Reconstructive Surgery, Inc.

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