Fronto-ethmoidal Mucocele with Frontal Sinus Destruction

Abstract

Fronto ethmoidal mucocele is a benign but expansive pseudo cyst due to mucous secreting nature of fronto-ethmoid sinus. A rare presentation of frontoethmoidal mucocele was reported. Our subject a 61 years old female presented with frontoethmoidal mucocele of unusually large size and two in number which developed over 2 years. Two masses one above left supra-orbital region and next on forehead was noted along with diplopia and non-axial proptosis in left eye due to swelling. Similar findings were found on CT scan and diagnosis was confirmed during surgery. Endoscopic marsupialisation of fronto-ethmoid pyocele with incision & drainage of isolated pyocele in the frontal bone was performed under general anaesthesia. A puncture wound in the posterior table of frontal sinus which might have resulted in CSF rhinorrhoea was dealt at the same setting. Keywords: Fronto-ethmoidal mucocele, diplopia, two mucocele, CSF rhinorrhoea