Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘abdomen’ Category

Featureless Small Bowel

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Toothpaste, tubular

  • graft-vs.-host disease (GvH)
  • Mycobacterium avium complex (MAC) (in AIDS)
  • ischemia
  • Crohn disease
  • radiation
  • Strongyloides
  • milk enteropathy
  • sprue
  • corrosive enteritis
  • lymphoma
  • amyloidosis
  • mastocytosis
  • FUDR toxicity
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Written by lmwong

February 3, 2010 at 11:00 am

GI Buzz Word

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  • central scar = FNH
  • Light bulb = pheochromocytoma
  • Corkscrew = malrotation midgut volvulus
  • Leadpipe colon = ulcerative colitis
  • Featureless bowel = Graft versus Host
  • Cauliflower liver mets = colon mets
  • bird beak esophagus = achalasia
  • plaquelike mucosa = candidiasis esophagitis
  • cloverleaf deformity = healed duodenal ulcer
  • spokewheel mass in mesentery = carcinoid
  • sunburst angiography = mesenteric carcinoid
  • string sign ileium = Crohn’s disease
  • Aphthoid/cobblestone ulcers = Crohn’s disease
  • ribbon bowel = graft-vs-host disease
  • string of beads biliary system = sclerosing cholangitis
  • comet tail artifact in GB = adenomyomatosis

Written by lmwong

February 1, 2010 at 3:01 pm

Posted in abdomen, buzz, gi

Carcinoid

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  • malignant neuroendocrine tumor
  • SB (Ileum) > lung > thyroid/ovary
  • MC malignancy of appendix
  • carcinoid syndrome = secretion of serotonin:  flushing, diarrhea, wheezing, cramping, peripheral edema
  • findings
    • well defined margins
    • lobulated
    • 30% have calcifications
    • intense contrast enhancement
    • lung: typically central location
    • hot on octreotide scan
  • surgery, adjuvant chemotherapy

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Written by lmwong

February 1, 2010 at 2:55 pm

Posted in abdomen, chest, gi, pulmonary

Congenital Diaphragmatic Hernia

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  • MC is Bochdalek hernia
  • MC left side
  • diagnosed at prenatal US, follow with MRI
  • up to 50% mortality
  • 50% have CHD
  • most have malrotation

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Written by lmwong

January 30, 2010 at 9:47 am

Multiple Small Bowel Lesions Differential

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  • lymphoma
  • polyposis syndrome
  • hemangiomas
  • neurofibromas
  • metastases

Written by lmwong

January 28, 2010 at 4:15 pm

Duodenal Narrowing Differential

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Benign

  • peptic ulcer disease
  • pancreatitis
  • crohn disease
  • hematoma
  • SMA syndrome
  • annular pancreas

Malignant

  • adenocarcinoma
  • lymphoma
  • malignant GIST
  • mets

Written by lmwong

January 18, 2010 at 9:51 am

Duodenal Filling Defects

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Malignant

  • adenocarcinoma
  • ampullary carcinoma
  • lymphoma
  • malignant GIST
  • metastasis

Benign

  • villous adenoma (FAP)
  • polyps (most are gastric polyps that prolapse into duodenum)
  • GIST
  • lipoma (submucosal, smooth surface, fat density)

Nonneoplastic

  • heterotopic gastric mucosa
  • Brunner gland hyperplasia
  • Enteric duplication cyst
  • flexural pseudopolyp
  • annular pancreas

Written by lmwong

January 18, 2010 at 5:18 am