Fig. 1: Dog-Tumour nodule on the rhinarium

Fig. 2: Dog- Histiocytoma- 50% regressed tumour in one month period

Fig. 3: Dog- Histiocytoma- Complete regression of tumour in two months

Fig. 4: Histiocytoma- Cytology- Cells are round shaped with basophilic cytoplasm and round to oval nuclei with indentation. L&G Scale Bar-5 µm