Items tagged “cases”

5,532 results found
Article

Arachnoiditis ossificans

Arachnoiditis ossificans is considered a sequela of chronic arachnoiditis where there is a development of calcification-ossification of the arachnoid membrane usually of the thoracic and lumbar spines. It is an extremely rare cause of spinal canal stenosis and consequent neurological compromise....
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Minimal aortic injury

Minimal aortic injury (MAI) is a mild form of blunt traumatic aortic injury which are limited to the aortic intima and are recognized more frequently due to the use of high-resolution vascular imaging in trauma. Epidemiology Minimal aortic injuries account for 10-28% of all blunt traumatic aor...
Article

Stump appendicitis

Stump appendicitis refers to inflammation of the residual appendiceal tissue post appendectomy. Pathology Partial removal of the appendix with a residual stump allows for a chance of recurrent appendicitis. Chances of a partial removal are found to be higher in cases where there is a wrong ide...
Article

COL4A1 brain small-vessel disease

COL4A1 brain small-vessel disease is an autosomal dominant monogenic COL4A1-related disorder that primarily causes cerebral small vessel disease. Epidemiology The exact prevalence is unknown, but the condition is likely under-diagnosed. Clinical presentation The clinical presentation is vari...
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COL4A1-related disorders

COL4A1-related disorders are a group of autosomal dominant disorders caused by a mutation in the COL4A1 gene. Epidemiology The exact prevalence is unknown, but the group of disorders is considered to be under-recognized, especially asymptomatic variants 1. Clinical presentation The clinical ...
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Hereditary angiopathy with nephropathy, aneurysms, and muscle cramps syndrome

Hereditary angiopathy with nephropathy, aneurysms, and muscle cramps (HANAC) syndrome is an autosomal dominant monogenic COL4A1-related disorder. Epidemiology The exact prevalence is unknown. Clinical presentation The cardinal features of HANAC syndrome are helpfully described in the name of...
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Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations

Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCL-S) is an autosomal dominant microvasculopathy of the brain, retina, and other organ systems. Terminology RVCL-S encompasses several previously described conditions 1,2, including cerebroretinal vasculopath...
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Intrabiliary rupture of hepatic hydatid cyst

Intrabiliary rupture of hepatic hydatid cyst is a common complication associated with hepatic hydatid cysts. It is important to appreciate the direct and indirect signs of this condition. Radiographic features The radiological features of intrabiliary rupture of a hepatic hydatid cyst can be c...
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Synovial enhancement

Synovial enhancement is an imaging feature typically observed on MRI imaging. It can occur in various forms and can be focal or diffuse. Pathology inflammatory synovitis transient synovitis of the hip infective synovitis inflammatory arthritides septic arthritis tuberculous septic arthri...
Article

Third condyle

The third condyle, also known as condylus tertius or the median occipital condyle, is a rare anatomical variant of the occipital bone that may mimic an occipital condyle fracture. It is part of the spectrum of occipital vertebrae. Epidemiology The third condyle is a rare variant, found in appr...
Article

Intraparietal sulcus

The intraparietal sulcus together with the postcentral sulcus, is one of the two main sulci of the parietal lobe. It runs from the post-central sulcus towards the occipital pole, dividing the lateral parietal lobe into the superior and inferior parietal lobules. The floor of the intraparietal su...
Article

Benign post-traumatic pseudopneumoperitoneum

Benign post-traumatic pseudopneumoperitoneum is the presence of ectopic gas typically between the 5th-10th intercostal spaces after high-energy trauma in the absence of other causes of pseudopneumoperitoneum such as pneumomediastinum 9.  Epidemiology Occurs with an incidence of 5% post-trauma...
Article

Contrast-induced neurotoxicity

Contrast-induced neurotoxicity, also known as iodinated contrast-induced encephalopathy, is a rare complication of iodinated intravascular contrast resulting in a usually temporary neurological deficit. CT imaging findings can be dramatic, demonstrating contrast staining and edema, but spontaneo...
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Posterior perforated substance

The posterior perforated substance or substantia perforata posterior, is an area of grey matter in the brain situated in the interpeduncular fossa between the cerebral crura. Gross anatomy The posterior perforated substance is a triangular area of grey matter located within the interpeduncular...
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CT polytrauma (approach)

Below is an approach used for the "primary survey" of a CT polytrauma/multitrauma (also called trauma CT or whole body CT), often performed at the CT console with the patient still on the CT table. It allows rapid communication of significant findings to the trauma team as well as the decision ...
Article

Levator ani syndrome

Levator ani syndrome (LAS) is a musculoskeletal pain syndrome involving the pelvic floor, thought to be caused by spasm or scarring of the levator ani muscles. Clinical presentation Levator ani syndrome is characterized by recurrent pain, pressure or discomfort in the region of the rectum, sac...
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Lateral horn

The lateral horn of the spinal cord is the small lateral projection of grey matter located between the dorsal horn and ventral horn and contain the neuronal cell bodies of the sympathetic nervous system. Gross anatomy On transverse section of the spinal cord, the spinal grey matter is describe...
Article

Height adjusted total kidney volume

Height adjusted total kidney volume (HtTKV) is used in patients with autosomal dominant polycystic kidney disease to predict the onset of renal insufficiency. There is strong evidence to indicate that baseline htTKV predicts, with good sensitivity and specificity, the development of renal insuff...
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Causes of dementia (mnemonic)

The causes of dementia can be remembered using the mnemonics: VANISHED DEMENTIA VANISHED V: vascular, vitamin deficiency: B1, B6, B12, folate A: Alzheimer disease, autoimmune: cerebral vasculitis, systemic lupus erythematosus N: normal pressure hydrocephalus, neoplasia I: infection, e.g. ...
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Hoffa fat pad herniation

Hoffa fat pad herniation is defined as herniation of infrapatellar fat through a defect in the lateral retinaculum. It is an uncommon cause of an anterolateral knee mass often detected at the fully flexed knee 1. Clinical presentation Mainly occurs in preschool-aged and young children as a pai...

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