Gastrointestinal Imaging: Stomach Shape and Esophagus

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

How does the body habitus of a hypersthenic (endomorphic) individual typically influence the observed shape and orientation of internal organs in radiographic imaging?

  • Organs appear elongated and vertically oriented.
  • Organs appear more rounded and wider due to a transverse orientation. (correct)
  • Organs maintain a consistent shape and orientation regardless of body habitus.
  • Organs appear compressed and positioned towards the midline.

In the context of radiographic positioning during a GI examination, which patient position is most likely used to visualize specific anatomical structures and/or conditions?

  • Lateral decubitus position
  • Prone position
  • Supine position
  • Upright position (correct)

What imaging characteristic would most strongly suggest a fluid-filled cyst rather than a solid mass upon initial ultrasound evaluation?

  • Hypo- or hyperdense mass, often with irregular borders and possible contrast enhancement.
  • Hyperechoic with irregular borders.
  • Hypoechoic with exogenous components.
  • Anechoic with well-defined borders and posterior acoustic enhancement. (correct)

Which sequence accurately describes the progression of initial damage in chronic pancreatitis?

<p>Duct damage → Acinar cell damage → Fibrosis and atrophy. (D)</p> Signup and view all the answers

A patient presents with jaundice, abdominal pain, and hepatomegaly. Assuming viral hepatitis, which clinical and morphological form is LEAST likely given these symptoms?

<p>Anicteric. (D)</p> Signup and view all the answers

Which sequence accurately represents the progression of liver damage in progressive massive liver necrosis?

<p>Jaundice → Diffuse hepatocyte necrosis → Hemorrhagic diathesis → Hepatic Encephalopathy (C)</p> Signup and view all the answers

A patient presents with malaise, fever, nausea, anorexia, and dark urine. These symptoms are most indicative of which stage of viral hepatitis?

<p>Pre-jaundice period (D)</p> Signup and view all the answers

Which of the following is the least likely cause of progressive massive liver necrosis?

<p>Chronic Alcohol Consumption (C)</p> Signup and view all the answers

Which of the following is the MOST direct pathogenetic mechanism in the development of biliary cirrhosis?

<p>Obstruction of the extrahepatic biliary tract, leading to cholestasis. (B)</p> Signup and view all the answers

A liver biopsy of a patient with suspected acute viral hepatitis is performed. Which finding would be most consistent with this diagnosis?

<p>Lymphocytic infiltration in portal tracts (D)</p> Signup and view all the answers

A patient with diabetes mellitus is diagnosed with fatty hepatosis. Which pathological process is most likely occurring in the liver?

<p>Fat accumulation in hepatocytes (B)</p> Signup and view all the answers

A patient with a long history of alcohol abuse is diagnosed with cirrhosis. Which macroscopic liver change is MOST likely to be observed?

<p>Nodular liver surface with small regenerative nodules and a shrunken size. (A)</p> Signup and view all the answers

In a patient with viral (postnecrotic) cirrhosis, which macroscopic characteristics would be MOST expected during a liver examination?

<p>A shrunken and deformed liver with large regeneration nodules and fibrous septa. (D)</p> Signup and view all the answers

In a patient with decompensated portal hypertension, which clinical manifestation is a direct result of increased pressure in the portal venous system?

<p>Splenomegaly (A)</p> Signup and view all the answers

What is the primary reason serum hepatitis is more severe than hepatitis A?

<p>It can lead to hepatocellular carcinoma (C)</p> Signup and view all the answers

Which histological finding is MOST indicative of acute alcoholic hepatitis?

<p>Hepatocyte necrosis, Mallory bodies, neutrophilic infiltration, and perivenular fibrosis. (D)</p> Signup and view all the answers

While reviewing a liver biopsy, a pathologist notes bile plugs in canaliculi and Kupffer cell proliferation. Which specific type of liver damage is most consistent with these findings?

<p>Jaundice form of hepatitis (C)</p> Signup and view all the answers

A patient is diagnosed with viral hepatitis. Which type of cellular degeneration is LEAST likely to be observed in the liver tissue?

<p>Liquefactive necrosis (B)</p> Signup and view all the answers

Which of the following conditions is MOST likely to lead to large nodular (postnecrotic) cirrhosis?

<p>Chronic viral hepatitis. (C)</p> Signup and view all the answers

A patient presents with acute liver failure following exposure to an unknown toxin. Which pathological process is MOST likely occurring in the liver?

<p>Acute toxic liver dystrophy. (C)</p> Signup and view all the answers

A 43-year-old male with cirrhosis dies from bleeding esophageal varices. What is the MOST direct underlying cause of this condition?

<p>Decompensated portal hypertension. (C)</p> Signup and view all the answers

In acute viral hepatitis, which of the following microscopic features is most characteristic?

<p>Lobular inflammation and ballooning degeneration (C)</p> Signup and view all the answers

A liver biopsy from a patient with suspected cirrhosis reveals a small, nodular liver with wide gray bands of fibrosis. This pattern is most consistent with which type of cirrhosis?

<p>Micronodular cirrhosis (portal cirrhosis) (D)</p> Signup and view all the answers

Which structural change in the pancreas is commonly observed in individuals with long-standing diabetes mellitus?

<p>Islet cell destruction, fibrosis, and hyalinization (A)</p> Signup and view all the answers

Which of the following is NOT a recognized type of pancreatic necrosis?

<p>Serous necrosis (B)</p> Signup and view all the answers

A patient presents with acute gastritis. Endoscopy reveals diffuse inflammation with small areas of hemorrhage. Which form of acute gastritis is most likely?

<p>Hemorrhagic gastritis (D)</p> Signup and view all the answers

Cicatricial stenosis of the gastric pylorus leads to a predictable set of complications. Which of the following acid-base disturbances is most likely to occur?

<p>Metabolic alkalosis (A)</p> Signup and view all the answers

Which histological finding is MOST characteristic of viral hepatitis?

<p>Hyperemia, hepatocyte swelling, and lymphocytic infiltration in portal tracts. (B)</p> Signup and view all the answers

What is the most common location for stomach cancer?

<p>Antrum/Pyloric Region (C)</p> Signup and view all the answers

Chronic atrophic gastritis with intestinal metaplasia is considered a precancerous condition because:

<p>The metaplastic changes increase the risk of dysplasia and subsequent malignant transformation. (D)</p> Signup and view all the answers

A patient with viral cirrhosis experiences sudden hematemesis and signs of hypovolemic shock. What is the most likely immediate cause of death in this scenario?

<p>Gastrointestinal bleeding (Hemorrhage) (B)</p> Signup and view all the answers

What is the MOST likely composition of the base of a chronic gastric ulcer in remission?

<p>Fibrous tissue, hyperplastic mucosa, and capillary proliferation. (B)</p> Signup and view all the answers

Which of the following is the MOST common cause of death in patients with toxic liver dystrophy?

<p>Hepatic coma, renal failure. (A)</p> Signup and view all the answers

A surgeon removes a vermiform appendix that is black and flabby. Histological examination reveals diffuse leukocyte infiltration and indistinguishable layers. What is the MOST probable diagnosis?

<p>Gangrenous appendicitis. (D)</p> Signup and view all the answers

Which of the following is the MOST life-threatening complication directly associated with gastric ulcers?

<p>Perforation. (C)</p> Signup and view all the answers

Penetration of a gastric ulcer refers to:

<p>The ulcer extending into adjacent organs, such as the pancreas or liver. (B)</p> Signup and view all the answers

A liver biopsy reveals small, uniformly sized nodules separated by fibrous bands. The liver is reduced in size and has a firm consistency. Which type of cirrhosis is MOST likely?

<p>Micronodular (portal) cirrhosis. (D)</p> Signup and view all the answers

Flashcards

Hypersthenic Build

A body type characterized by a stocky and rounded shape, often wider due to transverse orientation.

Normosthenic Build

An average body type that is neither overly lean nor heavy, balanced in proportions.

Asthenic Build

A body type that is slender and tall, with a more vertical alignment.

Achalasia

A condition affecting the esophagus, characterized by difficulty swallowing due to failure of lower esophageal sphincter relaxation.

Signup and view all the flashcards

Acute Pancreatitis Complications

Local complications include edema, fat necrosis, hemorrhages, and pseudocysts due to inflammation.

Signup and view all the flashcards

Etiological factors of liver cirrhosis

Main causes include viral hepatitis, alcohol abuse, biliary obstruction, metabolic disorders, toxins, and chronic venous congestion.

Signup and view all the flashcards

Biliary cirrhosis mechanism

Develops from chronic bile duct obstruction leading to cholestasis and possible autoimmune reactions.

Signup and view all the flashcards

Macroscopic signs of alcoholic cirrhosis

Characterized by a nodular liver surface with small regenerative nodules, fibrosis, and a shrunken liver.

Signup and view all the flashcards

Features of viral cirrhosis

Large regenerative nodules, fibrous septa, and a shrunken, deformed liver texture.

Signup and view all the flashcards

Acute alcoholic hepatitis signs

Hepatocyte necrosis, the presence of Mallory bodies, neutrophilic infiltration, and ballooning degeneration.

Signup and view all the flashcards

Types of dystrophy in viral hepatitis

Includes ballooning degeneration, hydropic dystrophy, fatty degeneration, and necrosis of liver tissue.

Signup and view all the flashcards

Causes of large nodular cirrhosis

Results from chronic viral hepatitis, toxic liver damage, or massive liver necrosis.

Signup and view all the flashcards

Causes of esophageal vein rupture in cirrhosis

Primarily due to decompensated portal hypertension, causing variceal dilation and rupture.

Signup and view all the flashcards

Forms of Viral Hepatitis

Icteric, anicteric, cholestatic, fulminant, chronic forms characterize viral hepatitis.

Signup and view all the flashcards

Progressive Massive Liver Necrosis

Characterized by diffuse hepatocyte necrosis, jaundice, and hepatic failure.

Signup and view all the flashcards

Causes of Liver Necrosis

Caused by viral hepatitis, toxic damage, and severe ischemia.

Signup and view all the flashcards

Liver Steatosis

Involves fat accumulation in hepatocytes and ballooning degeneration.

Signup and view all the flashcards

Hepatitis A Characteristics

Acute, self-limiting, transmitted via fecal-oral route without chronicity.

Signup and view all the flashcards

Decompensated Portal Hypertension Symptoms

Includes ascites, esophageal varices, and hepatic encephalopathy.

Signup and view all the flashcards

Morphological Signs of Hepatitis

Hepatocyte necrosis and bile plugs in canaliculi.

Signup and view all the flashcards

Histological Diagnosis of Acute Viral Hepatitis

Features hyperemia, hepatocyte swelling, and lymphocytic infiltration.

Signup and view all the flashcards

Viral Hepatitis Diagnosis

Presence of hyperemia, hepatocyte swelling, and lymphocytic infiltration in portal tracts.

Signup and view all the flashcards

Chronic Atrophic Gastritis

A gastritis form featuring metaplasia and inflammatory infiltrates in mucous membrane.

Signup and view all the flashcards

Precancerous Gastritis

Chronic atrophic gastritis characterized by intestinal metaplasia, increasing cancer risk.

Signup and view all the flashcards

Gastric Ulcer Complications

Complications include perforation, bleeding, penetration, and potential malignancy.

Signup and view all the flashcards

Gangrenous Appendicitis

Diagnosis of a black, flabby vermiform appendix due to severe necrosis.

Signup and view all the flashcards

Micronodular Cirrhosis

A small, nodular, fibrotic liver indicating chronic liver disease.

Signup and view all the flashcards

Hepatic Coma Causes

Death due to toxic liver dystrophy can result from hepatic coma or renal failure.

Signup and view all the flashcards

Penetration of Stomach Ulcers

Ulcers extending into adjacent organs like pancreas and liver.

Signup and view all the flashcards

Acute viral hepatitis

A liver infection characterized by lobular inflammation, periportal necrosis, and ballooning degeneration.

Signup and view all the flashcards

Pancreatic necrosis types

Includes hemorrhagic, fat necrosis, mixed necrosis, and purulent necrosis of the pancreas.

Signup and view all the flashcards

Acute focal gastritis forms

Includes catarrhal, hemorrhagic, fibrinous, and phlegmonous types of gastritis.

Signup and view all the flashcards

Cicatricial stenosis consequences

Gastric outlet obstruction resulting in retention, vomiting, and metabolic alkalosis due to peptic ulcer disease.

Signup and view all the flashcards

Inflammatory complications of peptic ulcer

Includes perigastritis, periduodenitis, adhesions, perforation, hemorrhage, and penetration.

Signup and view all the flashcards

Location of stomach cancer

Most commonly found in the pyloric region and lesser curvature of the stomach.

Signup and view all the flashcards

Histological findings in acute hepatitis

Marked hyperemia, swelling, granular dystrophy in liver tissue, and infiltration of portal tracts.

Signup and view all the flashcards

Study Notes

Stomach Shape in Different Body Types

  • Hypersthenics (Endomorphic): Steer horn shaped, more rounded and wider due to transverse orientation.
  • Normosthenics (Mesomorphic, Average Build): J shaped, hook shaped, oblique.
  • Asthenics (Ectomorphic, Slender Build): Sock shaped, hook shaped, or vertical.

Gastric Emptying Time

  • Contrast agent emptying from stomach: 2-4 hours.
  • Contrast agent emptying from large intestine: 1-2 days (48-72 hours).

Stomach Contour

  • Greater curvature contour: Bent line, irregular, jagged line, or smooth convex curve.

Esophageal Disease

  • Achalasia: Increase in esophageal shadow, triangular shape with smooth contours.
  • Diverticulum: A disease with an increased shadow in a triangular shaped area with smooth contours.

Patient Positioning for X-Ray

  • Optimal position for studying cardiac region and vault of stomach with fluoroscopy: Horizontal, upright, left anterior oblique (LAO), Trendelenburg.

Gastric Mucosa Visualization

  • Best visibility of gastric mucosa relief during fluoroscopy: Give barium to patient and do palpation from the back side.
  • Double-contrast technique

Esophageal Mucosa Folds

  • Normal esophageal mucosa fold thickness: Less than 2.
  • Esophageal mucosa folds appearance under fluoroscopy: Narrow strips, Longitudinal ridges, Longitudinal folds.

Greater Curvature Shape

  • Greater curvature shape on x-ray: Tooth shape, Concave.

Intestinal Fistulas

  • Crohn's disease: A disease where intestinal fistulas appear.

Mucosal Folds Convergence

  • Convergence of mucosal folds: Change in the direction of mucosal folds, ulcers, and gastritis.

Gastric Ulcer X-Ray Appearance

  • Typical x-ray image of a penetrating gastric ulcer: We will see the three layers of the stomach.

Duodenal Diverticulum Location

  • Duodenal diverticulum location: Descending part of the intestine, Duodenal bulb, or second part of the duodenum.

Stomach Disease Indicators

  • Gastric Polyp: A small, round (0.5-2 cm) filling defect with smooth contours.

Intestinal Obstruction Diagnosis

  • Main radiological method for diagnosing intestinal obstruction: X-ray.

Exophytic Gastric Cancer Indicators

  • Large filling defect with irregular contours.
  • Irregular, lobulated mass extending into the gastric lumen.

Pathology of Liver Diseases in Children

  • Main method for diagnosing liver diseases in children: Ultrasound.

Liver Cyst Appearance on Ultrasound

  • Anechoic (dark) with well-defined borders and posterior acoustic enhancement, and a thin capsule.

Liver Cancer Appearance on CT

  • Hypo- or hyperdense mass, often with irregular borders and possible contrast enhancement.

Hydatid Cyst Appearance on X-Ray

  • Hydatid cyst of the liver is only seen on X-ray when calcification is present.

Pancreas Ultrasound Appearance

  • Normal pancreas appearance on ultrasound: Hourglass shape, hypoechoic, exogenous.

Esophageal Burn X-Ray Appearance

  • Similar appearance as anatomical and long tube size.
  • Hourglass shape near the narrow side.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Digestion Past Paper PDF

More Like This

Stomach Anatomy and Function Quiz
7 questions
Stomach Mucosa and Gastric Glands
44 questions
Use Quizgecko on...
Browser
Browser