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143 Cards in this Set
- Front
- Back
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Edh |
Swirl sign |
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Acute SDH |
Right sided |
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Left sided chronic hypodense SDH Right sided subacute isodense |
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Intraventricular blood - SAH |
Visualize cisterns fissures |
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Sylvian fissure hge SAH focal |
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Herniation of brainstem /cerebellum Arnold chiari malformation - both type 1 n 2 have tonsilar herniation ~posterior pituitary is seen in sagittal t1 weighted MRI ~loss of this bright spot - central diabetes insipidus |
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T2 coronal MRI |
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Dwi adc |
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Infarct |
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Epidermoid cyst |
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Canavan disease |
Ring enhancing lesion Spectroscopy NAA higher than choline and creatine_normal Choline higher than creatine |
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Scolex |
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Extra peak - TB diagnostic Lipid Lactate peak with ring enhancing lesion |
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Normal |
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2nd image - Tuberous sclerosis |
Ts |
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X |
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1 dense MCA sign |
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1 delta sign - ncct - venous sinus thrombosis 3 empty delta sign - cect - venous thrombosis 2. Pseudo empty delta sign - SAH - NCCT |
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2 - oligodendroglioma 1 gBm - involves both hemispheres of cerebrum - butterfly tumor 3 craniopharyngioma 4 |
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Cerebellar vermis medulloblastoma |
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Tonsilar herniation Posterior fossa tumor Ependymoma - along lining of 4th ventricle it extends |
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NF 2 B/l acoustic neuroma |
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Classical Basal meningitis |
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Dawson finger MS |
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Xx |
Popcorn pattern cavernous sinus angioma |
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1 DWI - caudate and lentiform nucleus Infarct 3 perfusion MRI shows umbra and penumbra regions |
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Dwi - watershed Infarcts |
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Normal Diffuse Cerebral edema - white Cerebellar sign/dense Cerebellar sign/reversal sign- sign of global ischemia - poor prognosis - loss of white grey differentiation |
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Aaa |
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Anencephaly |
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Dandy Walker |
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Normal- ice cream cone appearance Incudomalleal joint Middle ear HRCT |
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Apple in plate appearance of cochlea Normal HRCT |
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Developmental venous angioma Mc developmental venous anomaly Medusa head appearance |
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Pancake brain Alobar holoprosencephaly |
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Salt and pepper appearance (any paraganglioma) Glomus jugulare |
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Tram track appearance |
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1 molar tooth appearance 2 bat wing appearance on CT jobert syndrome |
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Tigroid pattern Metachromatic leukodystrophy |
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Hot Cross bun |
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Face of panda Wilson |
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Dandy Walker variant Keyhole appearance Cisterna magna communicates with 4th ventricle If cyst present - Dandy Walker malformation |
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light bulb appearance Acute Infarct on DWI |
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Bag of worms No signal in MRI - signal void AV malformation |
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Face coronal section CT scan PNS IOC for PNS lesion Spur at beginning of nasal septum - crista galli |
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Opacification of right max, frontal and r nasal cavity - antrochoanal polyp - expansion also seen |
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CT PNS coronal plane Soft tissue window Hyperdense secretions - fungal sinusitis of R maxillary sinus (Hyperdense compared to left) Bone erosion |
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Water's view - maxillary sinus Waters with open mouth - sphenoid sinus best view for sphenoid sinus - lateral view |
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Air fluid level |
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USG eye - retinal detachment Classical - Y or V pattern |
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Normal mammogram |
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Macro calcification Popcorn Birad 2 Routine screening |
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Pleomorphic microcalcification |
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1 anechoic - cyst - posterior acoustic shadow 2 hypoechoic - lateral edge shadow - marker of fibroadenoma |
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USG breast irregular taller |
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Hypoechoic irregular - malignant |
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Pleural effusion |
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Normal CT lung window T5 level |
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CT lung mediastinal window Below aorta - SVC |
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Left pneumothorax with mild left sided collapse |
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Deep sulcus sign |
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CECT Pericardial effusion Pleural effusion Pericardial thickening |
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Inflamed pleura Split pleura sign Empyema |
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Pulm embolism Mint polo sign |
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Pulm oedema |
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Bronchogenic cancer causing right upper lobe collapse Golden S sign |
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Miliary nodules Hematogenous dissemination of disease |
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Honey combing ILD esp Idiopathic pulm Fibrosis |
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Air crescent sign Aspergilloma Hydatid cyst Tumor ball in cavity Blood in cyst |
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Tree in bud pattern - multiple nodular -TB (mcc) - bronchiolar impaction -other causes - RSV (esp) , CMV pneumonia |
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Conglomerated necrotic lymph nodes of mediastinum TB - necrotic Ln peripherally enhancing |
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Cavitatory lesion in lung TB/malignancy |
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Pulm alvelolar proteinosis |
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Pneumopericardium -Outlining of air by pericardium -continuous diaphragm sign - specific for pneumomediastinium |
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Staph pneumonia Pneumatocele |
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Corona radiata sign - malignant Cavity - thick walled, malignant |
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Benign and malignant calcification patterns |
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Left lung collapse Mass in trachea |
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CT angiography |
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Achalasia |
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Esophageal varices - serpigonous filling defect |
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Hiatus hernia |
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Dysphagia lusoria Aberrant right subclavian artery origin |
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Supine and erect Normal erect x ray abdomen |
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Multiple air fluid levels |
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Air under right dome of diaphragm ~sensitivity only around 70% ~Then send for CT ~IF NO CT, LEFT LATERAL decubitus - most sensitive x ray position (90%) |
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Wriggler sign - pneumoperitoneum supine xray |
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Severe small bowel obstruction String of bead appearance Air bubbles get trapped at mucosal outline |
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Small bowel feces sign On CT Distal obstruction of small bowel |
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CT abdomen Axial 3 pancreas 7 IVC 9 portal vein |
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Comb sign - ileocaecal involvement Crohn's disease - dilation of vasa recta which supply mesentry TB - mimics Crohn's |
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CT virtual colonoscopy - can see proximal bowel also |
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Double bubble sign -duodenal atresia -annular pancreas |
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T tube cholangiogram |
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1 Multiple stones in gall bladder 2 MRCP image showing filling defect in GB ie stone |
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Cartwheel sign in liver Hydatid cysts - USG |
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1. MR 2 MRCP - fluid containing structures seen in white |
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-USG liver -cystic lesion - posterior acoustic enhancement (hypoechoic) |
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-Focal isoechoic hepatic lesion -Mc asymptomatic hepatic lesion - hemangioma - hyperechoic -mixed echoic lesion - can be hemangioma - confirm: Triphasic CT or Triphasic MRI - peripheral nodular enhancement with centripetal filling |
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1 ncct 2 onwards cect Any lesion in liver which shows enhancement in arterial phase and washout in portal venous phase - HCC no biopsy needed |
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Sever Acute necrotizing pancreatitis |
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-Acute cholecystitis - thickened gall bladder membrane -Posterior acoustic shadow |
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Outer wall diameter >7mm (USG and on CT - >6mm) Dilated tubular structure Streakiness of periappendicular fat 1. Arrow head sign 2. Caecal bar sign |
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On FAST - hepatorenal pouch of Morrison showing blood |
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Apple core appearance - ca colon Double contrast barium enema |
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Exudative form of peritoneal TB Can also be seen in malignancy |
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Intussusception |
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Holt oram syndrome Absent radius ASD |
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Dinner fork deformity Colles |
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Arthritis mutilans Pencil in cup |
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Trap door/fallen leaf appearance Simple bone cyst |
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Expansile lytic lesion in tibia with no sclerosis GCT |
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GCT |
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1 tram track sign Bamboo sign 2 dagger sign Earliest investigation to identify ankylosing spondylitis - STIR MRI |
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Spondylosis - degen changes in spine Spondylolysis - break in pars articularis Spondylolisthesis - slipping of one vertebra over another |
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MR vertebra T2 weighted L5 - S1 Prolapsed Inter vertebral disc |
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Look at posterior vertebral margin - 1 malignant collapse : convex 2 osteoporotic/benign : concave |
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MR shoulder Normal |
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Bald man sign Supraspinatus rupture |
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MR knee with marked ACL |
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ACL tear with buckling of PCL |
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Double PCL sign Bucket handle sign of medial meniscus |
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STIR MRI - IOC for stress # tibia |
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Interosseous memb ossification Fluorosis |
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IVP CT urograph CT urograph with 3D reconstruction |
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Crossed fused ectopia |
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2 - duplicate system |
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Grade 5 b/l VUR |
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Normal and posterior urethral valve PUV - keyhole sign |
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2 Cemented/putty kidney - renal TB 1 cork screw ureter |
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Right kidney abnormal Striate nephrogram - Pyelonephritis acute |
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A/w xanthogranulomatous pyelonephritis CT - bear paw Infection - proteus Emphysematous pyelonephritis - more dangerous |
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RCC - stellate pattern |
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Normal obstetric USG Fill Form F before doing obstetric scan according to PCPNDT act |
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Anencephaly |
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Doppler of uterine A at 28 wks Diastolic notch - PIH |
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Normal umbilical A Doppler |
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High S/D ratio - uteroplacental insufficiency |
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Reveral of Diastolic flow - death will occur within 48 hrs |
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Torsion of right testis |
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PCOS morphology |
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Fishnet appearance Hemorrhagic cyst D/D - endometriosis if it fails to resolve by 6 months |
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Snow storm appearance in hydatidiform mole |
