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53 Cards in this Set
- Front
- Back
what are the findings for Caroli's disease
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multifocal saccular dilatation of intrahepatic bile ducts that will appear as hypodense on ct and could have air-fluid levels
this could be several rounds or oval hypoidense cystic structures containing air fluid levels |
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what is Caroli's disease associated with
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congenital hepatic fibrosis, medullary sponge disease, and autosomal recessive polycystic kidney disease
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what is the differential diagnosis of intrahepatic biliary cystic dilatation
3 |
sclerosing cholangitis
choledochal cysT (Caroli's disease) cholangiocarcinoma |
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what is another name for a type III choledochal cyst
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choledochacele
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what number choledochal cyst is Caroli's disease
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5
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what is another name for mesenteric panniculitis
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mesenteric lipodystrophy, idiopathic retractile mesenteritis
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what are the imaging findings in mesenteric panniculitis
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irregular mesenteric mass central calcification and radiating desmoplastic reaction exhibiting fibrotic tenting of adjacent loops of small bowel
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what is a potential complication of mesenteric panniculitis
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small bowel obstruction
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can mesenteric panniculitis occur in the colon
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it more commonly occurs in the small bowel but it may occur in the colon
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what is the differential diagnosis for mesenteric panniculitis
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carcinoid tumor, or other neoplastic entity especially if there is a large fibrotic component
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when describing mesenteric panniculitis what does the word panniculitis imply
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there is a primary inflammatory component
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why is there different names for mesenteric panniculitis
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this is because the different names describe different parts of the pathological process result in fibro-fatty thickening of the mesenteric
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what does mesenteric lipodystrophy imply about mesenteric panniculitis
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the word lipodystrophy is used when fatty degeneration predominates
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when is retractile mesenteritis used to describe mesenteric panniculitis
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this is one the predominate component is fibrosis
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what are the most common causes of mesenteric panniculitis
3 |
most commonly idiopathic, infection, foreign bodies
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what is pancreatic lipomatosis
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this is fatty replacement of the pancreas
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is pancreatic lipomatosis common
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yes and there is increased incidence what age
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what is the differential diagnosis of pancreatic lipomatosis
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pure pancreatic atrophy, congenital pancreatic hypoplasia, previous pancreatic resection
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what are two causes of pure pancreatic atrophy
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chronic pancreatitis, cystic fibrosis
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what is a syndrome in which congenital pancreatic hyperplasia may occur
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schwachman syndrome
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what is the second most common primary hepatic tumor
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after hepatocellular carcinoma cholangiocarcinoma is the second most common primary hepatic tumor
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what are some risk factors for cholangiocarcinoma
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choledochal cyst
ulcerative colitis Caroli's disease Clonorchis primary sclerosing cholangitis |
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what is the klatskin tumor
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this is a tumor located at the bifurcation of the Main biliary ducts
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how could you differentiate cholangiocarcinoma from hepatocellular carcinoma on post contrast imaging
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cholangiocarcinoma is typically have delayed enhancement whereas hepatocellular carcinoma is tend to have great is attenuation in the arterial phase
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name three features of cholangiocarcinoma's on CT
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large, hypo attenuating, a regular margins
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what is the differential diagnosis of cholangiocarcinoma
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metastasis, hepatocellular carcinoma, sarcoma
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what are two other names for splenic hamartomas
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Splenomas, nodular hyperplasia of the spleen
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what are the CT characteristics of a splenic hamartoma
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this is hyperintense in the arterial phase and I so dense to the splenic parenchyma on the non-contrast and portal venous phase
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can a splenic hamartoma have hypointense areas
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yes, these represent cystic components or necrosis
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what are splenic hamartoma is associated with
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tuberous sclerosis
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name some malignant splenic tumors
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lymphoma, mucinous cyst adenocarcinoma, metastasis
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what is a potential complication of the splenic hamartoma
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splenic rupture
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what is the differential diagnosis to splenic mass
5 |
cavernous hemangioma, splenic hamartoma, hemangioendothlioma, malignant fibrosis histiocytoma, inflammatory pseudo-tumor
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what does juvenile polyposis look like on CT
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there are multiple large lobulated filling defects within the colon
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what is the inheritance pattern of juvenile polyposis
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autosomal dominant
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is there risk of malignant transformation but juvenile polyposis
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yes, 9 to 50%
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what is the associated cancer to juvenile polyposis
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colon cancer is the most common but gastric cancer and pancreatic cancer may occur
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what is the most common presentation of juvenile polyposis
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G.I. bleeding
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what are some causes of hamartomtous polyps in the G.I. tract?
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Cowden (multiple hamartoma syndrome)
Peutz-Jeghers syndrome |
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what other cancers are associated with Cowden syndrome
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breast and thyroid cancer
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what cutaneous feature is associated with peutz jeghers syndrome
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mucocutaneous hyperpigmentation
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where is the most common location of the hamartomatous polyps of peutz jeghers syndrome
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the stomach
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what are some causes of adenomatous polyps
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familial polyposis coli, turcots syndrome, gardeners syndrome
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what kind of tumors is turcots syndrome associated with
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brain tumors; glioblastomultiforme and medulloblastoma
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what is associated with gardeners syndrome
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colonic polyps, osteomas, soft tissue tumors
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what cutaneous feature is associated with peutz jeghers syndrome
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mucocutaneous hyperpigmentation
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where is the most common location of the hamartomatous polyps of peutz jeghers syndrome
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the stomach
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what are some causes of adenomatous polyps
3 |
familial polyposis coli, turcots syndrome, gardeners syndrome
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what kind of tumors is turcots syndrome associated with
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brain tumors; glioblastomultiforme and medulloblastoma
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what is associated with gardeners syndrome
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colonic polyps, osteomas
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what what is the location of osteomas that typically occur in with gardeners syndrome
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frontal sinus, and the mandible
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what kind of soft tissue tumors are associated with gardeners syndrome
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dismally tumors, epidermoid inclusion cyst, fibroma, lipoma, leiomyoma
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what are some conditions that cause juvenile polyps
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juvenile polyposis, cronkite-canada
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