Fibropapilloma in neck region and hindquarter of dog: A case report
Nisha Kohli, Seema Agarwal and Shodhan K V
Department of Pathology, College of Veterinary and Animal Sciences
G B Pant University of Agri. & Tech.Pantnagar-263145 Uttarakhand
Email: nisha.kohli112@gmail.com, seema_patho@rediffmail.com
Abstract
The present communication deals with a case of fibropapilloma at neck region and on hind quarter in a dog aged 13 years. The tumour growth was firm and hard to incise. The animal was given Atropine sulphate @ 0.2mg/kg body weight intramuscularly followed by an injection of Xylazine @ 1mg/kg body weight and Ketamine @10mg/kg body weight intravenously. Dog was restrained in lateral recumbence with affected side upward, the line of incision further given with subcutaneous injection of lignocaine hydrochloride 2%. The growth was excised from the base and vessels were ligated. Area of attachment was cauterized with silver nitrate to kill the tumour cells if any. The wound was closed with interrupted mattress sutures using silk. On gross examination, the tumour mass was large, almost spherical, depressed and enclosed by a connective tissue capsule. Microscopical examination revealed presence of large number of fibrous connective tissue cells running in haphazard direction. The neoplastic cells and their nuclei appeared elongated and spindle shaped. On basis of above mentioned lesion the swelling was diagnosed as fibropapilloma.
Key Words: fibropapilloma, dogs, neck region, hindquater
Introduction
Fibropapilloma is a benign fibroblastic proliferation with overlying acanthosis, hyperkeratosis and downward growth of rete ridges (Yager et al., 1994). Only few cases of canine cutaneous fibropapilloma have been reported in the past. This communication deals with fibropaipilloma at neck region and hind quarter of a dog. These tumour attributed to papilloma virus infection and are most commonly seen in cattle and horse (Yager et al., 1994). However , virus that causes cutaneous papilloma in dogs is not same that causes canine oral papillomatosis (Jones et al., 1997). Cutaneous fibropapilloma (Kaldrymidou et al., 2001), Ureteral fibropapilloma (Hattel et al., 1986) laryngeal fibropapilloma (Saik et al., 1986) and nasal fibropapilloma (Nayska et al., 1980) have been reported in dogs in the literature.
Material and methods
A male dog, 13 years of age,was brought to the veterinary college clinic for treatment of protruding growth at neck region and on hind quarter. Routine clinical examination was carried out and blood parameters were estimated before the surgery.
The animal was given Atropine sulphate @ 0.2mg/kg body weight intramuscularly followed by an injection of Xylazine @ 1mg/kg body weight and Ketamine @10mg/kg body weight intravenously. Dog was restrained in lateral recumbence with affected side upward, the line of incision further given with subcutaneous injection of lignocaine hydrochloride 2%. The growth was removed after giving incision on the overlaying skin and bleeding vessel ligated. The area was cauterized with silver nitrate to kill any tumour cell. The wound was closed with interrupted mattress suture using silk.
Surgically removed sample was fixed in 10% formal saline, processed under routine histopathological technique and tissue section were stained with haematoxylin-eosin stains. Stained section was evaluated microscopically.
Result and discussion
Clinically body temperature, pulse rate and blood parameters were with in normal range. Outgrowths were hard, irregular, firm in consistency, almost spherical, depressed and enclosed by connective tissue capsule.
Microscopic examination revealed presence of large numbers of fibrous connective tissue fibers running in haphazard direction. The neoplastic cells and their nuclei appeared elongated and spindle shaped. On the basis of gross and histopathological examination, the swelling was diagnosed as fibropapilloma.
Fibropapilloma: Proliferation of fibrous connective tissue and squamous epithelial cells in haphazard direction
Acknowledgement
Author was grateful to Dean, College of veterinary and animal science for providing facility pertaining to this investigation and to Mr. V. K. Maurya for technical assistance.
References
- Hattel, A.L., Dieters, R.W., Snavely, D.A. (1986). Ureteral fibropapilloma in a dog. Journal of the American Veterinary Medical Association. 188: 873.0
- Kaldrymidou, E., Papaioannou, N., Poutahidis, Th., Van Garderen, E. and Karayanopoulou, M. (2001). Canine cutaneous papilloma. Study of seven cases. Bulletin of the Hellenic Veterinary Medical Society. 52(2): 126-135.
- Nyska, A., Klopfer, U., Perl, S., Nobel, T.A. and Bark, H. (1980). Tumour in nasal cavity of dog- five case reports. RefuahVeterinarith. 37: 145-150.
- Saik, J.E., Toll, S.L., Diter, R.W. and Goldschmidt, M.H. (1986). Canine and feline laryngeal neoplasia:a 10-year survey. Journal of the American Animal Hospital Association. 22: 359-365.
- Yager, J.A. and Wilcock, B.P. (1994). Color Atlas of Surgical Pathology of Dog and Cat. Wolfe, London, UK: 295.
