Osteoblastoma of the maxillary sinus in a child presenting with exophthalmos

Abstract

Osteoblastoma of the maxillary sinus is rare. CT assessment must be as precise as possible to avoid confusion with another tumour. The diagnosis can only be confirmed by histological examination. This case report is completed by a review of the literature with description of the main differential diagnoses.

A rapidly growing expansile lesion of the maxillary sinus in a child

“…Mitotic activity is extremely rare in the stromal cells. 32 Cystic degeneration and secondary aneurysmal bone cyst formation may occur in both variants. 39 Clear histologic distinctions have been made between the 2 variants of JOF; however, Bhuyan et al reported on 1 of 2 known cases of JOF presenting with a rare lesion in the maxilla, in which both histologic variants coexisted.…”

“…31 Sinonasal osteoblastomas are extremely rare. 32 Nevertheless, there are a few case reports, such as those by Vella et al and Jaswal et al, who described cases of osteoblastomas in children involving the maxillary sinus and nasal cavities. 32,33 However, osteoblastomas in the paranasal sinuses are quite rare in young children.…”

“…32 Nevertheless, there are a few case reports, such as those by Vella et al and Jaswal et al, who described cases of osteoblastomas in children involving the maxillary sinus and nasal cavities. 32,33 However, osteoblastomas in the paranasal sinuses are quite rare in young children. Furthermore, the absence of pain in our patient and the lack of extensive calcification for a lesion of this size made a diagnosis of osteoblastoma less likely in our case.…”

Pediatric Benign Paranasal Sinus Osteoneogenic Tumors: A Case Series and Systematic Review of Outcomes, Techniques, and a Multiportal Approach

“…Of these cases, 5 noted that their initial surgery was subtotal with the intended benefit of smaller or less conspicuous incisions or reduced morbidity to nearby critical structures. These included a transoral enuclation, 22 limited transfacial resection, 23 bicoronal incision with craniotomy, 9 and endoscopic piece meal resections. 24,25 The time to recurrence in these cases ranged from 2 to 8 months.…”

Maxillary Sinus Osteoma: Case Report

“…daha çok baş boyun bölgesinde görülürler. Baş boyun bölgesinde frontoetmoid bölgede, maksiller sinüste, mandibulada ve nadiren de temporal kemikte izlenirler (3)(4)(5)(6)(7)(8). Osteom insidansı baş boyun bölgesinde görülen benign tümörler içerisinde %0,1-1 arasında bildirilmektedir (9).…”