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Eccentric, mature osseous cap: A distinct imaging feature of sinonasal osteoblastoma.
- Source :
- American Journal of Rhinology & Allergy; Mar2018, Vol. 32 Issue 2, p82-84, 3p
- Publication Year :
- 2018
-
Abstract
- Background: With the exception of osteomas, bone neoplasms that originate in the sinonasal cavity are seldom diagnosed on preoperative imaging due to a lack of characteristic radiographic features. Here we described the unusual occurrence of an osteoblastoma in the paranasal sinuses, and we drew focus to its salient imaging features. A highly unique imaging sign was indicated, and its pathologic basis was explained, with concurrent review of the literature. Methods: Case series and review of the literature. Results: Two cases of sinonasal osteoblastoma were managed by definitive surgical resection. Both tumors on preoperative computed tomography demonstrated an expansile, heterogeneous fibro-osseous lesion with an eccentric, mature osseous cap. The dense osseous cap seen on imaging corresponded to a rim of mature bone on histopathology. A review of existing literature revealed the presence of this imaging sign in all reported cases. Conclusion: Sinonasal osteoblastoma is an extremely rare entity with undefined imaging characteristics to guide preoperative decision-making. Here we reported, to our knowledge, the first description of a characteristic imaging sign of an eccentric, mature osseous cap, which corresponded histologically to a single peripheral layer rim of osteoblasts, a unique trait of osteoblastoma. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19458924
- Volume :
- 32
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- American Journal of Rhinology & Allergy
- Publication Type :
- Academic Journal
- Accession number :
- 129075453
- Full Text :
- https://doi.org/10.1177/1945892418762658