Browsing by Author "Kumar, V, et al.,"
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ArticleItem Open Access Clinico-pathological Diagnosis of Transmissible Venereal Tumour with Hepatozoon canis and Babesia canis Infection in a Chippiparai Dog(2021-09) Mohanapriya, T; Ramprabhu, R; Kumar, V, et al.,; TANUVASABSTRACT Background: The concurrent infection of tick borne haemoprotozoan diseases like B.canis, E. canis and H. canis were commonly recorded in breed dogs. There is paucity in recording the combined haemoprotozoan infection with neoplasms in the native breeds of Tamil Nadu. The current investigation was documented to study the clinico-pathological changes, diagnosis and treatment of the concomitant infection of Hepatozoon canis and Babesia canis along with transmissible venereal tumor in a native dog. Methods: This Clinical investigation was carried out during April’ 2019 for about a month. A male Chippiparai dog was presented to the Veterinary Clinical Complex, VCRI, Tirunelveli with history of mass and bleeding from the genital area. The impression cytology from the mass and the whole blood and serum samples were collected for the laboratory diagnosis. Result: The hematological examination showed marked anaemia and the blood smear revealed the presence of H. canis gamonts in neutrophils and B. canis piroplasm in red bloods cells. The serum biochemical values showed the elevation of alanine aminotransferase, alkaline phosphatase, blood urea nitrogen, creatinine and reduction of total protein, albumin. The impression cytology revealed the presence of uniform sheets discrete round cells with punctuate vacuolation in the cytoplasm, confirmed the sexually transmitted venereal tumor.ArticleItem Open Access Diagnosis and immunohistochemical evaluation of equine preputial tumors(2022) Thangapandiyan, M; Krishnaveni, P; Kumar, V, et al.,; TANUVASTwo geldings of eight and ten-year-old were presented to the Madras Veterinary College Teaching Hospital with tumor mass on the preputial region. Microscopical examination of one of the preputial mass revealed the presence of loosely arranged fi brovascular stoma with epidermal hyperplasia and hyperkeratosis. Finger like projections, rete pegs extend in to fi bromatous tissue were noticed and identifi ed as fi bropapilloma. The second mass revealed polyhedral shaped cells with pale blue cytoplasm and keratin pearls, suggestive of squamous cell carcinoma. On immunohistochemical study cytokeratin was expressed in both tumors while vimentin expression was high in squamous cell carcinoma. E-cadherin was poorly expressed in squamous cell carcinoma and intensely positive in Fibropapilloma. Based on histopathology and immunohistochemistry it was classifi ed as poorly diff erentiated squamous cell carcinoma and prone to metastasis. The current fi ndings concluded a possible role of vimentin in the development and progression of preputial tumour and vimentin and E-cadherin markers will be useful in the diagnosis and prognosis of preputial skin neoplasms in equines.ArticleItem Open Access An occurrence of avian malaria in domestic pigeons in Tamil Nadu, India(2021) Nagarajan, K; Arunkumar, S; Kumar, V, et al.,; TANUVASPlasmodium relictum is an invasive blood protozoan, which causes malaria in various species of birds worldwide and often leads to heavy mortality in naive birds. The aim of this study is to report the occurrence of P. relictum in the domestic pigeons with flock size of 150 birds and its gross pathological features in the various organs of the affected birds. Postmortem changes in dead birds showed enlargement and discoloration of the liver, serofibrinous pericarditis, hazy air sacs and swollen congested Kidneys. Organ impressions revealed various stages of P. relictum. This study concludes the first report of occurrence of P. relictum in domestic pigeons of Tamil Nadu.