case history: equine coital exanthema caused by equine herpesvirus 3 (ehv3) was reported in 1900. at the present time, it has become epidemic among horses. the virus could be transmitted via insemination, iatrogenic, and it basically infects the squamous epithelium of the epidermis. clinical presentation: in the first week of january 2012 two mature male horses and a mare were imported from net...

Varicella (chickenpox) is a highly contagious disease caused by varicella zoster virus (VZV). The primary infection results in acute varicella with fever, malaise, and a widely disseminated vesicular and itching rash, frequently solving with scars. The rash begins on the face, scalp, and trunk and occurs in crops; typically, lesions are at different stages of evolution. The oral mucous membrane...

In the past three years several reports have drawn attention to a type of mitral incompetence associated with a peculiar deformity of the mitral valve. This is characterized by an increase in area of the affected leaflets which become voluminous and prolapse into the atrium in systole. Various names or descriptions have been applied to the condition, based either on pathological findings (descr...

The present study describes clinical, virological, histopathological, immunohistochemical and electron microscopic findings of pox infection encountered in a quail flock. Lesions consisted of single or multiple nodules with a crust in variable size of gray to yellow or dark brown discoloration on the comb, eyelids, and the other poorly feathered areas of the body. Histopathological changes cons...

Nonalcoholic steatohepatitis (NASH) is the progressive form of nonalcoholic fatty liver disease (NAFLD). The minimal pathologic criteria for NASH include hepatic steatosis, ballooning degeneration, and lobular inflammation. The resolution of NASH, which relies on the loss of ballooning degeneration, is subject to sampling and observer variability in pathologic interpretation. Ballooning is asso...

The terminal degeneration of retino-tectal fibres was studied electron microscopically in the pigeon Synaptic vesicles seem to undergo systematic changes which can best be observed in aldehyde-fixed material. Initially (i.e. within 12-24 h) the vesicles begin to swell. The enlargement is clearly visible after 4 days (40 % increase in diameter) and reaches a maximum at 14 days (100% increase). A...

N on-alcoholic fatty liver disease (NAFLD) is a clinicopathological condition characterised by a wide spectrum of histological abnormalities and clinical outcomes. The underlying histological abnormality is hepatic steatosis, characterised by fat accumulation, which may progress to non-alcoholic steatohepatitis (NASH), characterised in turn by steatosis, periportal inflammation, and ballooning ...

histopathology on the olfactory organ of a snakehead fish, channa punctatus (bloch, 1793) were assessed after exposing the fish to 2.5 mg/l and 5mg/l of cdcl 2 for 15 days, 30 days and 45 days. cellular organization of the epithelium was affected severely with degeneration of sensory and supporting cells and hyperplasia of basal cells and mucous cells. mucous cell proliferation indicates the up...