Three cases of sphenoid sinus mycosis

Abstract

Mycosis in the paranasal sinus is commonly found in the maxillary sinus, but rarely in the sphenoid sinus. In this paper, three cases of sphenoid sinus mycosis are reported and the clinical feature are compared with the 25 other cases reported in Japan since 1968. Our three patients had complained of headache and eye pain, which were thought to be characteristic symptoms in the 25 previous cases. One of the three patients had onset with a background of rheumatoid arthritis and needed steroid medication, but the other two patients had no improvement with medication for sinusitis. By CT scanning and MRI, a localized sphenoid sinus lesion was detected as a characteristic findings for paranasal sinus mycosis, showing irregular mosaic contras on CT scanning and low intensity signal on T1 and T2 MRI imaging. The definite diagnosis was made by means of histological examination for a block age in the affected sinus cavity. Endoscopic sphenoidectomy was performed through the parsnaslis of the anterior wall of sphenoid sinus and was usefull for total removal of the lesion.