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31 Cards in this Set
- Front
- Back
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MRI finding for osteonecrosis
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double rim sign on T2
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CT finding for adrenal adenoma
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HU<10 or washout >50% (high washout / low remainder)
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MR finding for adrenal adenoma
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loss of signal on out-of-phase MR
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hypervascular mass at iliac bifurcation
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think organ of zuckerkandl pheo
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What category of tumor is a pheo
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paraganglioma, because it arises from chromaffin cells
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What nuc med study detects pheo
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i-131 MIBG or In-111 octreotide
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what is a multiseptated cystic mass with claw of normal parenchyma
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MLCN multilocular cystic nephroma
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how do u dx adenomyosis by MR?
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junctional zone >12mm. <8 excludes adenomyosis (hypointense T2 area of inner myometrium)
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which testicular torsion more common? Intra or extra
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intravaginal (bell-clapper)
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only consideration for vessel between esophogus and trachea
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pulm sling
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what demographic does hypertrophic pyloric stenosis favor
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male 4:1
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what age is at risk for hypertrophic pyloric stenosis
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2-8w
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diff between intralobar and extralobar sequestration
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pulm vein drain and no pleural covering for intralobar; system vein drain and pleural covering for extra
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describe ('classic') subacute HP
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patchy ggo, ill-defined CL nodules <4mm, all zones but subplueral sparing
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describe ('classic') chronic HP
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fibrosis, intralobular interstitial thickening irregular, irreg septal thickening, honeycomb, traction bronchiectasis
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describe ('classic') primary ciliary dyskenisia
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lower lobe predominant bronchiectasis. Possibly with situs inversus universalis (Kartagener's)
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pulmonary AVMs are related to what syndrome
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Osler Weber Rendu. 70%
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describe lymphangitic carcinomatosis
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interlobular septal thickening and peribronchovascular interstitial prominence
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high attenuation pulm consolidation, what would u think?
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amiodarone tox
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what is garland's triad
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for sarcoid: R paratracheal and bilateral hilar LAD
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diff simple and complicated silicosis
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complicated is when nodules coalesce to >1cm masses
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ddx for miliary pulm dz
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tb, sarcoid, metastatic papillary thyroid ca
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thick cavitary lesion, tree in bud
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TB
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name of line outlining gastric ulcers
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Hampton's line
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signs suggesting benign ulcers
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smooth mucosal folds from line, hampton's line, penetration sign
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what MR findings of focal fat of liver?
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in n out of phase image with signal loss, doesn't displace vessels
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fatty lesions on MR liver
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hepatic adenoma or HCC
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how do u diff FNH and FLM HCC
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FNH central scar eventually enhances a bit, FLM HCC never does. Also FNH central scar brighter on T2 and slow clearance of HIDA
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described classic MR for liver hemangioma
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discontinuous peripheral enhancement that progresses in centripetal manner
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where does inferior pancreas divisum drain to
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Wirsung (main papilla)
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where does superior pancreas divisum drain to
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Santorini (minor papilla)
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