Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘Phalen’ Category

Jepperson-Wong-Lai Syndrome

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  • Bilateral fat filled inguinal hernias
  • caused by concomitant weakness in both inguinal rings plus herniation of intra-abdominal fat
  • asymptomatic
  • 50% male
  • Risk factors: obesity, midwest
  • Associations: fatty liver disease, heart disease, diabetes
  • Benign incidental finding

Written by lmwong

April 1, 2010 at 3:19 pm

May-Thurner syndrome

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  • DVT of left ileofemoral vein by compression of left common iliac vein from overlapping right common iliac artery

Written by lmwong

February 6, 2010 at 1:36 pm

SAPHO

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  • Synovitis, Acne, Pustulosis, Hyperostosis, Osteitis
  • soft tissue calcification between medial clavicle, anterior upper ribs, manubrium
  • HLA-B27 positive

read more

Written by lmwong

January 21, 2010 at 8:32 pm

Hip Deformity Differential

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  • Avascular Necrosis
  • Congenital Hip Dysplasia
  • Legg Calve Perthe Disease
  • SCFE

Written by lmwong

January 15, 2010 at 9:30 pm

AP Pelvis Trauma Checklist

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  1. Iliopubic line
  2. Ilioischial line
  3. Anterior acetabular rim
  4. Posterior acetabular rim
  5. Pubic Symphysis

Written by lmwong

January 14, 2010 at 7:14 am

Posted in bone, msk, pelvis, Phalen, trauma

Osler-Weber-Rendu disease

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  • hereditary hemorrhagic telangectasia
  • telangectasia
  • AVMs and aneurysms in multiple organ systems (pulmonary, GI, cutaneous, CNS)
  • pulmonary AVMs have lower lobe predominance, medial lung

Written by lmwong

January 12, 2010 at 11:46 pm

Posted in chest, lower, lung, Phalen, pulmonary

Idiopathic Interstitial Pneumonias

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  • UIP (Usual)
    • foci of normal lung with areas of interstitial infiltrate, active fibrosis and end-stage fibrosis
    • basilar, subpleural
    • irregular linear opacities
    • ground glass attenutation
    • traction bronchiectasis
    • honeycombing
    • chronic infiltrative lung diseases: idiopathic pulmonary fibrosis, asbestosis, connective tissue disorders, drug toxicity
  • NSIP (nonspecific)
  • DIP (Desquamative)
  • RB (respiratory bronchiolitis)
  • LIP (Lymphocytic)
  • AIP (acute)
  • COP (cryptogenic organizing pna)

read

Written by lmwong

January 12, 2010 at 7:43 pm

Gallstone Ileus

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  • erosion of gallstone through GB wall into GI tract
  • fistula between GB and duodenum (stomach, colon)
  • large stones impact in ileum = mechanical SBO
  • Bouveret’s Syndrome = gastric outlet obstruction due to impaction of a stone
  • XR findings = Rigler’s triad
    • pneumobilia
    • dilated SB
    • ectopic calcified gallstone

Written by lmwong

January 11, 2010 at 11:17 pm

Posted in abdomen, gallbladder, gi, Phalen

Polyposis Syndromes

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Familial adenomatous polyposis Hyperplastic stomach, adenomatous bowel AD Includes Gardner syndrome and Turcot syndrome
Gardner syndrome FAP + desmoid tumors, osteomas, epidermoid cysts, papillary thryoid cancer
Turcot syndrome FAP + CNS tumors, gliomas, medulloblastomas
Lynch syndrome (hereditary nonpolyposis colon cancer) Adematous AD Endometrial, stomach, SB, liver, brain, ovary, ureterm and renal pelvis cancers
Peutz-Jeghers syndrome Hamartomatous; usually SB AD Skin lesions, gastroduodenal and colon malignancy, gynecologic neoplasms
Cowden disease Hamartomatous AD Mucocutaneous lesions, thyroid, breast
Cronkhite-Canada syndrome Hamartomatous Sp Stomach, SB, colon, ectodermal changes (skin, hair, nails)
Juvenile polyps Hamartomatous AD 1=isolated JP of childhood; 2=JP of GI tract; 3=JP of infnacy

Mayo Clinic: Gastrointestinal Imaging Review

Written by lmwong

January 6, 2010 at 10:02 am

Posted in abdomen, gi, Phalen

3 Remnants of Notocord

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  • Chordoma
  • Thornwaldt’s cyst
  • Schmorls node/limbus vertebra

Written by lmwong

December 19, 2009 at 2:09 am

Posted in bone, msk, Phalen, spine

Epiphyseal Lesions

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  • chondroblastoma
  • chrondrosarcoma
  • giant cell tumor

Epiphyseal Equivalents:

  • Patella
  • Calcaneus
  • Carpal bones
  • Apophyses (i.e. greater and lesser trochanters)

Written by lmwong

December 17, 2009 at 10:46 pm

Posted in bone, differential, msk, Phalen