PMID- 25429202 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20141127 LR - 20200930 IS - 1177-5467 (Print) IS - 1177-5483 (Electronic) IS - 1177-5467 (Linking) VI - 8 DP - 2014 TI - Diagnostic challenges in primary orbital fibrosarcoma: a case report. PG - 2319-23 LID - 10.2147/OPTH.S70843 [doi] AB - Fibrosarcoma is a rare and malignant spindle cell tumor of mesenchymal origin that infrequently presents in the orbit. Evolving diagnostic criteria confound the identification of these tumors, as well as the interpretation of previous studies on this unusual entity. We report a case of a 66-year-old man with a mass on his left inferior orbit, with associated paresthesia. A computed tomography (CT) scan showed a lesion on the left anteroinferomedial orbit, with bone erosion. An en bloc surgical excision followed by a thorough immunohistologic evaluation allowed diagnosis of an orbital fibrosarcoma. The patient has had no recurrence after 14 months of follow up. Once a commonly identified soft tissue malignancy, fibrosarcoma has become a diagnosis of exclusion as a result of improved diagnostic and classification techniques, such as immunohistochemistry and fluorescence in situ hybridization (FISH). This type of soft tissue tumor is now an uncommon entity, and we report the first case of a primary orbital fibrosarcoma in an adult, using modern diagnostic and classification methods. FAU - Scruggs, Brittni A AU - Scruggs BA AD - Department of Ophthalmology, School of Medicine, Tulane University, New Orleans, LA, USA. FAU - Ho, Son T AU - Ho ST AD - Department of Ophthalmology, School of Medicine, Tulane University, New Orleans, LA, USA. FAU - Valenzuela, Alejandra A AU - Valenzuela AA AD - Department of Ophthalmology, School of Medicine, Tulane University, New Orleans, LA, USA. LA - eng PT - Case Reports DEP - 20141120 PL - New Zealand TA - Clin Ophthalmol JT - Clinical ophthalmology (Auckland, N.Z.) JID - 101321512 PMC - PMC4242685 OTO - NOTNLM OT - fibroblasts OT - mesenchymal tumor OT - soft tissue malignancy OT - spindle cell orbital tumor EDAT- 2014/11/28 06:00 MHDA- 2014/11/28 06:01 PMCR- 2014/11/20 CRDT- 2014/11/28 06:00 PHST- 2014/11/28 06:00 [entrez] PHST- 2014/11/28 06:00 [pubmed] PHST- 2014/11/28 06:01 [medline] PHST- 2014/11/20 00:00 [pmc-release] AID - opth-8-2319 [pii] AID - 10.2147/OPTH.S70843 [doi] PST - epublish SO - Clin Ophthalmol. 2014 Nov 20;8:2319-23. doi: 10.2147/OPTH.S70843. eCollection 2014.