ON THE OCCURRENCE OF OSTEOGENIC FIBROMA ON THE PRE-MAXILLA OF AN INDIAN CAT FISH, WALLAGO ATTU (BLOCH AND SCHNEIDER)

Abstract

This communication records osteogenic fibroma from Wallago attu. A trilobed hard knob-like big tumour was situated at the tip of the premaxilla and was covered with thick skin. Near the basal portion of the tumour hard pointed teeth-like structures were present at the anterior side while the remaining sides had small warty projections. Irregular structures were observed internally after cutting the tumour in the middle. Spherules of multiple bone spicules, laminated in appearance, embedded in a fibrous matrix were observed on histological examination. Cartilage, multinucleated and spindle shaped cells were absent throughout in the section. The connective tissue did not show any sign of malignancy. Probable histogenesis and comparison of the tumour are discussed.