A gross and histologic examination was performed on 13 kittens and 14 puppies that died after a subcutaneous inoculation of Rift Valley fever virus. The significant gross lesions were confined to the liver and spleen. Both organs were congested, dark red, and very soft. On the serosal and cut surfaces of the liver, very faint gray to yellow foci with hyperemic edges were present. Petechiae and ...

The present research work was conducted to study about the seroprevalence and pathology of Salmonella infections in layer chickens of Dhaka and Gazipur regions of Bangladesh and to isolate and characterize Salmonellae from layer chickens during the period from January to May 2006. The used materials were blood sample, cloacal and liver swabs from live and dead birds respectively, and visceral o...

Toxic nephropathies manifest morphologically as glomerulonephritides, vasculitides, tubular necrosis, and acute or chronic tubulointerstitial disease. The most common toxicity is acute interstitial nephritis owing to hypersensitivity. However, focal segmental glomerulosclerosis and necrotizing angiitis secondary to heroin abuse, membranous glomerulopathy owing to gold, penicillamine and captopr...

Acute retinal necrosis syndrome (ARN) is a viral infection characterized by focal retinal necrosis. Viral meningitis complicated by ARN is relatively rare. In the present case study, a 44-year-old male presented with fever, headache and mental disorder. After four days, the patient developed blurred vision. The patient was diagnosed with viral encephalitis complicated by bilateral ARN, based on...

Sir, Panniculitis has a multiple aetiology. One of the less common causes is trauma and hence traumatic fat necrosis. These soft tissue injuries usually appear on the shins, thighs, breasts, arms and buttocks. Women are particularly susceptible (1, 2). The initial injury is usually bruising of the skin with a haematoma, and later deeper indurated lesions can be palpated (2, 3). Traumatic pannic...

Focal myocardial necrosis that was often extensive was found in a high percentage of rabbits, guinea pigs, and mice given a single intravenous injection of crystalline streptococcal proteinase. The findings are discussed in relation to their possible implications for the pathogenesis of the cardiac lesions of rheumatic fever.

The virus of parrots and parrakeets discovered by Pacheco, Bier, and Meyer is unrelated to the agent causing psittacosis either in birds or in man. The virus is fairly species-specific and manifests itself chiefly by the production of areas of focal necrosis in the liver and acidophilic intranuclear inclusions in affected cells.

PURPOSE To evaluate the mechanism and timing of retinal tumor cell death in the LH(BETA)T(AG) mouse model of retinoblastoma after treatment with vascular targeting therapies and conventional therapies (focal chemotherapy and radiation). METHODS For vascular targeting therapy, 12- or 16-week-old mice were treated with a single subconjunctival injection of either anecortave acetate (300 microg)...

Although Mycobacterium ulcerans elicits extensive necrosis of human skin and subcutaneous tissue, the specific cause of the necrosis has never been elucidated. In an attempt to define a toxic substance, 18 strains of M. ulcerans were inoculated into mice, and the progress of each infection was observed and compared with infections of other mycobacteria, including M. cheloni, M. marinum, and M. ...

OBJECTIVES Animal models of human Epstein-Barr virus (EBV) infection include EBV infection of primates and infection of mice with MHV-68, a further gamma herpesvirus (gamma-HV). We aimed at extending the MHV-68 model to study gamma-HV-related cardiac disease. METHODS Newborn wild-type BALB/c- (n=107), wild-type C57BL/6- (n=17) and immunodeficient B6-(Rag1) mice (n=18) were infected by nasal i...