Diagnostic Criteria for Heparin-Induced Thrombocytopenia (HIT)
Since specificity of Buerger’s disease is characterized by peripheral ischemia of an inflammatory nature and with a self-limiting course, diagnostic criteria should be discussed from clinical of view.
Several different criteria have been proposed for the diagnosis of thromboangiitis obliterans:
Acute: Subtle low signal (hypointense) on T1, often difficult to see at this stage, and high signal (hyperintense) on spin density and/or T2-weighted and proton density-weighted images starting 8 h after onset; should follow vascular distribution. Mass effect maximal at 24 h, sometimes starting 2 h after onset, even in the absence of parenchymal signal changes. No parenchymal enhancement with paramagnetic contrast agent. Territorial intravascular paramagnetic contrast enhancement of “slow-flow” arteries in hyperacute infarcts; at 48 h, parenchymal and meningeal enhancement can be expected.
Computed tomography (CT) is widely used for early evaluation of acute strokes. Most importantly, CT excludes acute hemorrhage or other diseases mimicking ischemia.
Infection,a documented or suspected, and some of the following:b
The diagnostic criteria for tuberous sclerosis complex (TSC) were revised at the Tuberous Sclerosis Complex Consensus Conference, July 1998.
Definite TSC: Two major features or one major feature plus two minor features
Probable TSC: One major feature plus one minor feature
Possible TSC: One major feature or two or more minor features
What Is An Attack?
The diagnosis of a Functional Disorder of the Anus and Rectum always presumes the absence of a structural or biochemical explanation for the symptoms.
1996 Case Definition
Clinical description
An illness characterized by fever, chills, headache, photophobia, cough, and myalgia
Preeclampsia: For the diagnosis of preeclampsia, both hypertension and proteinuria must be present.
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