Epithelioid osteoblastoma of maxilla: A rare and aggressive variant of a benign neoplasm at an uncommon site

Osteoblastoma (OB) is an uncommon benign bone-forming tumor accounting for <1% of all bone neoplasms. Unlike conventional OB, its small subset variant "Epithelioid osteoblastoma (EO)" is characterized by its propensity for local invasion and recurrent behavior. This rare variant of an u...

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Bibliographic Details
Published inJournal of oral and maxillofacial pathology : JOMFP Vol. 20; no. 2; p. 332
Main Authors Rana, Vandana, Saxena, Vivek, Sahai, Kavita, Singh, Giriraj
Format Journal Article
LanguageEnglish
Published India Wolters Kluwer - Medknow Publications 01.05.2016
Medknow Publications and Media Pvt. Ltd
Medknow Publications & Media Pvt. Ltd
Medknow Publications & Media Pvt Ltd
Subjects
Care and treatment
Case Report
Case studies
Diagnosis
Jaw diseases
Osteosarcoma
epithelioid cells
osteoblastoma
Aggressive
maxilla
osteosarcoma
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Summary:Osteoblastoma (OB) is an uncommon benign bone-forming tumor accounting for <1% of all bone neoplasms. Unlike conventional OB, its small subset variant "Epithelioid osteoblastoma (EO)" is characterized by its propensity for local invasion and recurrent behavior. This rare variant of an uncommon tumor when occurs in an atypical site can lead to diagnostic problems more so due to ambiguous clinico-radiologic presentation. This was what faced in the present case of 18-year-old female with a swelling in upper jaw. OB is usually more common in males and involves primarily the posterior element of the spine and the sacrum (40-55%). Less frequently, long bones of limbs are involved. Clinical, radiological and histopathological correlation in this case guided us to reach at right diagnosis of EO which helped the patient in getting correct treatment which involves surgical excision over conventional curettage. The purpose behind this case presentation is to improve the awareness about this recurrent tumor variant which has many close differentials including well-differentiated osteoblastic osteosarcoma.
ISSN:0973-029X
1998-393X
DOI:10.4103/0973-029X.185923