Leptospirosis

Andy Hua Introduction Classification Taxonomy Classically, the genus  Leptospira  was divided into 2 species based on genetic analysis:  L. interrogans  sensu latu (pathogenic strains) and  L. biflexa  sensu latu (saprophytic strains). L. interrogans  is divided into more than 250 serovars based on antigenic composition and further classified into antigenically related serogroups. There is a serovar…

Bartonella henselae: An Infectious Pathogen among Cats

Maigan Espinili Maruquin I. Characteristics / Epidemiology  The Bartonella spp. have wide distribution worldwide wherein antibody prevalence in cats which ranged from 8–53% was recorded in Europe (Pennisi, Marsilio et al. 2013, Zangwill 2013) while approximately 5-80% of cats worldwide were recorded of serological evidence on exposure to this bacteria (Guptill 2012). They cause wide…

Feline Pancreatic Lipase (fPL)

Andy Pachikerl, Ph.D   Introduction Pancreatitis appears to be a common disease in cats,1 yet it remains frustratingly difficult to establish a clinical diagnosis with certainty. Clinicians must rely on a combination of compatible clinical findings, serum feline pancreatic lipase (fPL) measurement, and ultrasonographic changes in the pancreas to make an antemortem diagnosis, yet each…

Concurrent with T-zone lymphoma and high-grade gastrointestinal cytotoxic T-cell lymphoma in a dog

Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5402196/   A 9-year-old, spayed female Golden Retriever dog showed lymphocytosis and lymphadenopathy, secondary to suspected chronic lymphocytic leukemia (CLL). Small-to-intermediate lymphocytes were observed from the cytological examination of the right popliteal lymph node via a fine-needle aspirate. The dog was suspected to have a low-grade lymphoma based on the finding of cytology. Also,…

Case study: Primary cardiac lymphoma in a 10-week-old dog

Case study: Primary cardiac lymphoma in a 10-week-old dog   Robert Lo, Ph.D, D.V.M   Original: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261812/   Canine lymphoma usually appears in multicentric, alimentary, mediastinal, and cutaneous forms, but rarely affects only heart. This case reports a uncommon primary cardiac lymphoma (PCL) of a 10-week-old miniature dachshund. The dog clinically showed acute onset of weakness.…

What are Feline Injection-Site Sarcomas (FISS)?

What are Feline Injection-Site Sarcomas (FISS)?   Maigan Espinili Maruquin   I. Characteristics / Epidemiology The feline injection-site sarcomas (FISS) were first reported on 1991 (Hendrick and Goldschmidt 1991). With the implementation of stricter vaccination and development of vaccines for rabies and FeLV, the increased incidence of vaccine reactions was recognized (Hendrick and Dunagan 1991,…

Canine Anaplasmosis

Canine Anaplasmosis   Andy Pachikerl, Ph.D   Introduction Anaplasma platys (formerly Ehrlichia platys) is a Gram negative, non-mobile, pleomorphic bacterium, belonging to the Anaplasmataceae  family, which has been speculated, but not conclusively demonstrated, to be transmitted by Rhipicephalus sanguineus, known as the “brown dog tick” (Simpson et al. 1991). Anaplasma platys is an obligate intracellular…

Chlamydophila felis: A Unique Bacteria Causing Diseases to Felines

Chlamydophila felis: A Unique Bacteria Causing Diseases to Felines   Maigan Espinili Maruquin   Structure and Replication The chlamydiae is unique obligate intracellular bacteria. The Chlamydophila felis is a Gram- negative and rod- shaped coccoid bacterium however the cell wall lacks peptidoglycan (Gruffydd-Jones, Addie et al. 2009). It has two morphologically distinct structures. The (1)…

Case study: Canine non‐epitheliotropic CD4‐positive cutaneous T‐cell lymphoma: a case report

Case study: Canine non‐epitheliotropic CD4‐positive cutaneous T‐cell lymphoma: a case report   Robert Lo, Ph.D, D.V.M   A 5‐year‐old, spayed female French Bulldog presented with multiple papules on the skin of the scapular area. Histopathological examination of skin biopsy specimens showed proliferated small lymphoid cells in the superficial dermis and in the area around the…