Articles

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16,919 results
Article

Charcot joint

Charcot joint, also known as a neuropathic joint or Charcot (neuro/osteo)arthropathy, refers to a progressive degenerative/destructive joint disorder in patients with abnormal pain sensation and proprioception. Epidemiology In modern Western societies by far the most common cause of Charcot jo...
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Varicocele embolization

Varicocele embolization is a minimally invasive method of treating varicoceles by embolizing the testicular vein (internal spermatic veins). Indications symptomatic varicocele infertility/subfertility failed surgical ligation Contraindications Relative contraindications include: intraveno...
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Varicocele

Varicocele is the dilatation of the pampiniform plexus of veins, a network of many small veins found in the male spermatic cord. It is the most frequently encountered mass of the spermatic cord. Epidemiology The estimated incidence is at ~15% of the general male population and ~40% of subferti...
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Lung atelectasis

Lung atelectasis (plural: atelectases) refers to the collapse or incomplete expansion of pulmonary parenchyma.  Terminology Atelectasis may be used synonymously with collapse, but some authors reserve the term “atelectasis” for partial collapse, not inclusive of total atelectasis of the affect...
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Bronchiectasis

Bronchiectasis (plural: bronchiectases) is defined as an irreversible abnormal dilatation of the bronchial tree. It has a variety of underlying causes, with a common etiology of chronic inflammation. High-resolution CT is the most accurate modality for diagnosis. Epidemiology As there are many...
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Pyonephrosis

Pyonephrosis is a term given to an infection of the kidney with pus in the upper collecting system which can progress to obstruction. Pyonephrosis may be suspected when the clinical symptoms of fever and flank pain are combined with the radiologic evidence of urinary tract obstruction 1. Debris...
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Choroid plexus infarct

Choroid plexus infarct is an uncommon location of ischemic stroke that results from ischemia of the choroid plexus, supplied by the medial posterior choroidal artery, which is a branch from the posterior cerebral artery (PCA). Clinical presentation Isolated choroid plexus infarction is rare an...
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Posterior choroidal artery infarct

Posterior choroidal artery infarct is a rare isolated ischemic stroke syndrome due to occlusion of the posterior choroidal artery. It usually coexists with posterior cerebral artery, and often superior cerebellar artery, infarction. Clinical presentation When infarction is limited to to the la...
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Medial posterior choroidal artery

The medial posterior choroidal artery is a small branch (often multiple - 40% of hemispheres) usually arising from the P2 segment of the posterior cerebral artery (PCA). It may also arise from one of the PCA branches, e.g. parieto-occiptal, calcarine, splenial artery. It ascends deep to the res...
Article

Cholecystectomy

Cholecystectomies are one of the most common surgical procedures performed. Evidence of a cholecystectomy is often seen on imaging procedures with surgical clips in the gallbladder fossa and radiologists should be aware of possible complications.  Indications cholelithiasis cholecystitis gal...
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Cytotoxic lesions of the corpus callosum (CLOCCs)

Cytotoxic lesions of the corpus callosum (CLOCCs) represent a collection of disparate conditions that can cause signal change in the corpus callosum, usually involving the splenium.  Terminology The term cytotoxic lesions of the corpus callosum (CLOCCs) has been proposed 12 as a more precise d...
Article

Bardet-Biedl syndrome

Bardet-Biedl syndrome (BBS), previously known as the Laurence-Moon-Bardet-Biedl syndrome (LMBBS), is a rare autosomal recessive hereditary condition. Clinical presentation The clinical spectrum includes: retinal anomalies: similar to that of retinitis pigmentosa intellectual disability rena...
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Embryonal tumor with multilayered rosettes

Embryonal tumors with multilayered rosettes (ETMR) are rare small round blue cell tumor of the central nervous system. They are one of the most aggressive brain tumors usually encountered in children and are WHO grade 4 tumors.  Terminology Previously embryonal tumors with multilayered rosette...
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Oropharyngeal isthmus

The oropharyngeal isthmus, a.k.a. isthmus of fauces, is the relative constriction of the anterior oropharynx that borders the oral cavity. The isthmus is sometimes described as the passage that transitions between the oral cavity and pharynx, but strictly speaking, it is part of the oropharynx. ...
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Lobar intracerebral hemorrhage

Lobar intracerebral hemorrhage is a subtype of intracerebral hemorrhage defined by their location in the peripheral cerebral hemispheres. Compared to deep intracerebral hemorrhages (involving the deep grey nuclei or brainstem), lobar hemorrhages are less likely to be related to hypertension and ...
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Rosette-forming glioneuronal tumors

Rosette-forming glioneuronal tumors (RGNTs) are rare, usually midline, tumors that involve the fourth ventricle and/or aqueduct of Sylvius.  Although relatively well-circumscribed on MRI and clinically indolent, they often invade surrounding tissues, involving the cerebellum, pons and even the ...
Article

Neurographics (journal)

Neurographics is a quarterly review journal publication by the American Society of Neuroradiology and was first published in 2011. History In 2011, at the behest of Mauricio Castillo, Editor-in-Chief of American Journal of Neuroradiology (AJNR), a review journal, Neurographics, was published. ...
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American Journal of Neuroradiology (AJNR)

American Journal of Neuroradiology (AJNR) is the premier publication of the American Society of Neuroradiology and was first published in 1980 1. Its founding editor was Juan M Taveras (1919-2002), a pioneering American neuroradiologist and co-founder of the American Society of Neuroradiology. I...
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RadioGraphics

RadioGraphics is a review journal published by the Radiological Society of North America (RSNA), and its first edition was issued in 1981 1. Radiology is a sister journal. Its editor is Dr Christine "Cooky" O Menias. History In 1980, as the RSNA editor of educational materials, Dr William J Tu...
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Radiology (journal)

Radiology is a peer-reviewed monthly journal published by the Radiological Society of North America (RSNA). Its first edition was issued in September 1923 1. Impact factor According to the Radiology website, the journal's impact factor for 2022 is 19.7. Its Eigenfactor score is 0.05185, based ...

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