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Year : 2018, Volume : 42, Issue : 1
First page : ( 71) Last page : ( 73)
Print ISSN : 0250-4758. Online ISSN : 0973-970X. Published online : 2018 March 1.
Article DOI : 10.5958/0973-970X.2018.00013.5

A case of hemangiopericytoma in a German shepherd dog

Prasath N. Babu1,*, Selvaraj J.1, Senthilkumar S.1

1Department of Veterinary Pathology, Veterinary College and Research Institute, Orathanadu-614625, TANUVAS, Thanjavur, Tamil Nadu, India

*Corresponding author: e-mail: vetdrprasad@gmail.com

Received:  20  December,  2017; Accepted:  15  February,  2018.

Abstract

Haemangiopericytoma is a spindle cell sarcoma arising from the pericytes of blood vessel wall. It is rare tumour of large sized dog breeds often seen in the subcutis of limbs, thorax and abdomen. A five year male German Shepherd dog with subcutaneous swelling over the thorax was reported. On physical examination, the mass was firm and moveable in the subcutis of right dorsolateral thoraco-abdomen and was excised surgically. Cytologically, tissue impression smear revealed short stumpy spindle cells with vacuolations in the cytoplasm and presence of multinucleated crown cells. Histologically, neopalstic cells were arranged as whorls forming finger print appearance around the capillaries. Based on the cytological and pathomorpholoical studies, the tumour was diagnosed as haemangiopericytoma. This case reports the occurrence of haemangiopericytoma in a five year old dog.

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Keywords

Cytology, Dog, Histopathology, Haemangiopericytoma.

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Figures

Fig. 1.:

A firm movable subcutaneous mass over the right dorsolateral thoraco-abdomen of a German shepherd dog.




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Fig. 2.:

Haemangiopericytoma tissue impression cytology: Moderate cellularity of plumpy spindle cells which were distributed individually and in clusters with prominent cytoplasmic tails. Leishman and Giemsa mixed Stain x1000.




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Fig. 3.:

Haemangiopericytoma tissue impression cytology: The cytoplasm of neoplastic cell is basophilic with numerous small discrete vacuoles. Leishman and Giemsa mixed Stain x1000.




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Fig. 4.:

Haemangiopericytoma tissue impression cytology: Multinucleated ‘crown cells’. Leishman and Giemsa mixed Stain x1000.




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Fig. 5.:

Haemangiopericytoma: Neoplastic cells are arranged closely packed in alternating interlacing bundles forming whorls around the capillaries - typical finger print appearance. H&E ×400.




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Fig. 6.:

Haemangiopericytoma: Neoplastic cells forming whorls with staircase appearance. H&E ×100.



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REFERENCES

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