author(s)
S Soujanya and D Madhuri

abstract
In the present study, a round, firm, solid, whitish grey coloured nodular growth was surgically removed from the elbow region of a dog and submitted for diagnosis to Department of Pathology, College of Veterinary Science, Korutla. Histopathology was performed and lesions were noted. Microscopically, the nodular mass was composed of spindle shaped fibrous connective tissue cells with spindle shaped nuclei forming compact interlacing and intersecting bundles. Bright pink colored long and wavy collagen fibers running in all directions were noticed. Nuclear, cellular pleomorphism and nuclear hyperchromatism was seen. The tumour cells were running haphazardly and had a scant amount of cytoplasm. The cell boundaries were poorly defined. The nuclear to cytoplasm ratio was increased. Mitotic figures and numerous blood vessels were noticed. The collagen fibers and fibrocytes arranged in a concentric manner around the blood vessels. Thus in present case, the tumour was confirmed as cutaneous fibrosarcoma based on histopathology.