RESUMO
Purpose: To report a 3-month-old boy with rapid progressive orbital intraosseous hemangioma which was treated with excisional biopsy and orbital rim reconstruction. Observation: A 3-month-old boy was referred with the aggressive growth of a mass on the right orbital region. The mass was noted to develop over 4 weeks. On presentation this firm nontender orbital mass measuring 5 × 5cm mimicked a more ominous malignancy. The spiral computed tomography scan showed a destructive mass with protrusion superiorly and inferiorly toward the orbital cavity and anterior cranial fossa. The patient underwent gross tumor resection and reconstruction of the orbital rim. Histology findings revealed an intraosseous hemangioma. There was no evidence of recurrence after 1-year follow-up. Conclusion and Importance: Due to rapid progression, the patient's age, and lesion size, this case is unique. There were additional challenges regarding complete resection, intra-cranial extension, and significant blood loss in an infant. Therefore, in the face of rapidly progressing orbital tumors in infants, despite the very low prevalence of intraosseous hemangioma, this diagnosis should be considered.