Extraskeletal osteochondroma on a cat´s elbow

A solitary extraskeletal osteochondroma was diagnosed in a 6-year-old, castrated male Burmese cat, positive for feline leukaemia virus (FeLV). The cat presented with a rapidly growing, solid, non-painful mass on the craniolateral aspect of the left elbow. Radiographs revealed an oval, well circumscribed 2.0 cm × 1.5 cm × 1.5 cm mineralised mass separated from the underlying bone. Surgical excisional biopsy confirmed the diagnosis. Feline extraskeletal osteochondromas are benign tumours frequently seen in FeLV-positive cats which can transform into osteosarcomas or chondrosarcomas. Radiographically, they cannot be distinguished from a parosteal or an extraskeletal osteosarcoma.

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Occurrence of feline immunodeficiency virus and feline leukaemia virus in Maputo city and province, Mozambique: a pilot study

Journal of Feline Medicine and Surgery Open Reports ◽

10.1177/2055116919870877 ◽

2019 ◽

Vol 5 (2) ◽

pp. 205511691987087

Author(s):

Cesaltina CLM Tchamo ◽

Mónica De Rugeriis ◽

Emília V Noormahomed

Keyword(s):

Positive Result ◽

Feline Immunodeficiency Virus ◽

Urban Areas ◽

African Countries ◽

Leukaemia Virus ◽

Zoonotic Pathogens ◽

Test Kit ◽

Immunodeficiency Virus ◽

Feline Leukaemia Virus ◽

Veterinary Faculty

Objectives Feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV) are immunosuppressive viruses in cats that increase their susceptibility to zoonotic pathogens. This study aimed to determine the occurrence of one or both viruses, the risk factors associated with infection, and to develop further recommendations. Methods This was a cross-sectional study conducted at the Veterinary Faculty of Eduardo Mondlane University, Mozambique, between March and December 2017, in 145 cats. From each of 145 cats, we took 1.5 ml of blood by jugular puncture for detection of antibodies to FIV and FeLV antigens in whole blood using a commercial test kit, DFV Test FeLV/FIV. Results We found an overall prevalence of 11.0% and 14.5% for FIV antibodies and FeLV antigens, respectively, with four (2.8%) cats coinfected by both pathogens. Male cats were more likely to be infected with FIV (odds ratio [OR] 1.1, 95% confidence interval [CI] 0.3–4.0) compared with female cats. Clinically ill cats were more likely to have a positive result for FeLV antigen infection (OR 18.8, 95% CI 5.2–68.3). Moreover, cats living in suburban areas have a greater chance of a positive result for FeLV infection (OR 3.7, 95% CI 1.4–9.6) compared with cats living in urban areas. Conclusions and relevance FIV and FeLV occur in cats from Maputo and possibly all over the country. Further studies should be conducted in Mozambique and other African countries to define the burden of both pathogens in cats, coinfection with other zoonotic pathogens and the possible role played by the cats on the transmission of zoonotic and opportunistic diseases to humans.

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Suggestive Evidence for an Oncorna-Virus-Specific DNA Polymerase from C-Type Particles of Bovine Leukosis

Zeitschrift für Naturforschung C ◽

10.1515/znc-1974-1-217 ◽

1974 ◽

Vol 29 (1-2) ◽

pp. 72-75 ◽

Cited By ~ 5

Author(s):

B. Dietzschold ◽

O.R. Kaaden ◽

S. Ueberschaer ◽

F. Weiland ◽

O. C. Straub

Keyword(s):

Dna Polymerase ◽

Polymerase Activity ◽

Friend Virus ◽

Leukaemia Virus ◽

Virus Particles ◽

Virus Rna ◽

Feline Leukaemia Virus ◽

Bovine Leukosis ◽

Bovine Lymphocytes ◽

Viral Preparation

Abstract Typical C-type oncorna virus particles as shown by electron microscopy have been purified from the supernatant of cultured lymphocytes from bovine leukosis. In the purified C-particle fraction a DNA-polymerase activity was detected. Using several synthetic RNA-or DNA-homopolymers and 70S Friend virus RNA the template response of this bovine leukosis cell particle DNA polymerase was compared with those of feline leukaemia virus DNA polymerase and DNA polymerase from normal bovine lymphocytes. The DNA polymerase detected in the viral preparation of bovine leukosis is suggested to be an oncorna-virus-specific enzyme.

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