GASTROINTESTINAL IMAGING

Jaundice

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Jaundice

Anatomy, embryology, pathophysiology ◼ Jaundice refers to the clinical sign of hyperbilirubinemia (>2.5 mg/dL), often manifesting with yellowing of the cutaneous surfaces, sclerae conjunctiva, and oral mucosa. ◼ Largely subdivided…

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Cholecystitis

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Cholecystitis

Anatomy, embryology, pathophysiology ◼ The gallbladder (GB) is a pear shaped musculomembranous structure, lying along the hepatic undersurface, functioning as a reservoir to accumulate bile (~30–50 mL). ◼ Embryologically, the…

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Right lower quadrant pain

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Right lower quadrant pain

Anatomy, embryology, pathophysiology ◼ There are three major anatomic regions that may contribute to right lower quadrant pain. Organ systems with differential diagnoses include: ◼ Gastrointestinal system: cecum, ascending colon,…

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Cystic pancreatic lesions

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Cystic pancreatic lesions

Anatomy, embryology, pathophysiology ( fig. 14.1 ) ◼ Serous cystadenoma: inactivation of von Hippel-Lindau ( VHL ) gene. ◼ Mucinous cystic neoplasms (MCNs): closeness of left primordial gonad to the…

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Benign focal liver lesions

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Benign focal liver lesions

Anatomy, embryology, pathophysiology ◼ Lesions in the liver are often characterized based upon underlying histology. The most common benign lesions include simple cysts, hemangiomas, hepatocellular adenoma (HCA), focal nodular hyperplasia…

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Solid pancreatic masses

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Solid pancreatic masses

Anatomy, embryology, pathophysiology ◼ Adenocarcinoma: inactivation of multiple antioncogenes, as well as issues with deoxyribonucleic acid mismatch repair ( BRCA2 ). Smoking, diet high in meat and solvent exposure are…

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Chronic liver disease

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Chronic liver disease

Anatomy, embryology, pathophysiology ◼ The liver is located in the right upper quadrant of the abdomen below the diaphragm. It is mostly covered by ribs but the lower portion of…

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Right upper quadrant pain

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Right upper quadrant pain

Anatomy, embryology, pathophysiology ◼ There are three major anatomic regions that may contribute to right upper quadrant pain. Organ systems with differential diagnoses include: ◼ Gastrointestinal system: liver, biliary, pancreas,…

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Pancreatitis

Jun 13, 2021 by in GASTROINTESTINAL IMAGING Comments Off on Pancreatitis

Anatomy, embryology, pathophysiology ◼ The pancreas is a lobulated, unencapsulated gland located in the anterior pararenal space of the retroperitoneum. ◼ Pancreatic development: two outpouchings or buds develop from the…

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