A Case of Orbital Organizing Hematoma Presenting as a Chalazion

ABSTRACT

PURPOSE: Organizing hematomas (hematic pseudocysts) of the orbit are usually the consequence of direct blunt trauma and are important in the differential diagnosis of orbital cystic lesion. Herein, we report a case of orbital organizing hematoma masquerading as a chalazion. CASE SUMMARY: A 12-year-old female visited our clinic complaining of left lower eyelid swelling. CT scan and MR imaging showed a mass detected in the inferomedial space of her left orbit, which did not invade the adjacent tissue. Excisional biopsy of the orbital mass was performed. Histological examination showed the accumulation of blood-breakdown products within a thick fibrous capsule without epithelial or endothelial lining. The mass was diagnosed as an organizing hematoma. CONCLUSIONS: An orbital organizing hematoma can present, although rare, as a chalazion-like eyelid mass. Careful clinical and radiological examinations can help in making a differential diagnosis.