Experimental allergic encephalomyelitis, a demyelinating disease with marked similarity to multiple sclerosis, was produced in two of 12 dogs. All dogs were studied with serial MR imaging. T1- and T2-weighted MR images were obtained both before and after IV Gd-DTPA. Multiple, new periventricular white matter demyelinating lesions were observed after each clinical episode of the disease. Like mu...

Acute disseminated encephalomyelitis (ADEM) is a monophasic, postinfectious or postvaccineal acute infl ammatory demyelinating disorder of central nervous system (CNS).[1,2] The pathophysiology involves transient autoimmune response directed at myelin or other self-antigens, possibly by molecular mimicry or by nonspecifi c activation of autoreactive T-cell clones.[3] Histologically, ADEM is cha...

Dengue hemorrhagic fever (DHF) is an acute fabrile illness caused by four serotypes of Dengue virus and characterized clinically by hemorrhagic diathesis and a tendency to develop a shock syndrome (DSS). In the earlier epidemics(l-3), hemorrhagic manifestations and shock were the main features. In the past two years, we have found that neurological manifestations were prominent in addition to s...

introduction crimean-congo hemorrhagic fever (cchf) is an acute viral zoonotic disease, which is endemic in vast geographic areas including the middle east. the causative agent, crimean-congo hemorrhagic fever virus (cchfv), is a nairovirus, which is mainly transmitted to human from infected hard ticks and viremic livestock. discussion given that viremic livestock are the main source of cchf ou...

Hemorrhagic acalculous cholecystitis is a rare but potentially fatal disease. An increased bleeding tendency is present in both acute and chronic renal failure with impaired platelet function. We herein present a case of hemorrhagic acalculous cholecystitis in a hemodialysis patient who suffered from acute abdomen and upper gastrointestinal bleeding. The pathogenesis may have been associated wi...