Antrochoanal Polyp in an Unusual Case of Follicular Ameloblastoma of Maxilla: A Case Report

Abstract

Magnetic resonance imaging of paranasal sinuses revealed residual soft tissue mass in the right maxillary sinus, coming onto the anterior, inferior, and posterolateral wall of right maxillary sinus. Besides, this also revealed blockage of sinus drainage pathways of ipsilateral ethmoids and frontal and sphenoid sinuses with resultant retention of fluid in these sinuses (Fig. 5). High-resolution computed tomography thorax revealed no abnormality. Serum parathormone levels were normal. Serum vitamin D and calcium levels were within normal range. Subsequently, the patient was planned for right total maxillectomy. Right-sided total maxillectomy was performed (Fig. 6A). Ipsilateral frontal, ethmoid, and sphenoid sinus clearance was done. Sphenoethmoid recess was cleared. Pterygoid base clearance was done. Reconstruction was done by using fascia lata sling for orbital support and by split thickness skin graft for lining the cavity followed by an obturator. [Clinical photograph of patient at one(1) week post operatively depicting healing cavity (Fig. 7)] Specimen was removed by “en-bloc” resection (Fig. 6B), and was sent for histopathological examination, which confirmed complete clearance of disease and diagnosis of follicular ameloblastoma (Figs 6B and C). As per histological and radiological correlation, the epicenter of the disease was in the maxillary bone; anterior, medial, and posterior walls of maxilla; in the maxillary antrum; and not at all in alveolar process. Follow-up examination at 6 weeks revealed no evidence of any disease. Ca s e De s C r i p t i o n