Gastrointestinal Pathology: Symptoms and Conditions of the Esophagus, Stomach, and Intestine

Esophagus: Symptoms and Conditions

The following symptoms are commonly associated with esophageal disorders:

• Dysphagia: Difficulty swallowing, often described as a retrosternal sensation of bolus detention.
• Odynophagia: Painful swallowing.
• Regurgitation: The return-to-mouth of food originating from the esophagus.
• Sialorrhea: Excessive production and flow of saliva.
• Heartburn (Pyrosis): A burning sensation caused by the reflux of gastric contents.
• Aerophagia: The sudden evacuation of swallowed air.
• Esophagorrhagia: Expulsion of blood via vomiting (hematemesis).

Major Esophageal Conditions

Megaesophagus or Achalasia

Diffuse dilation of the esophageal wall, characterized by internal dysphagia. It presents as permanent retrosternal or interscapular odynophagia, regurgitation occurring hours after intake, and secondary esophagitis.

Esophageal Diverticula

Circumscribed dilatations of the esophageal wall, forming sac-like pouches that communicate with the esophageal lumen through an orifice. Symptoms include epigastric pain, regurgitation, hiccups, dysphagia, and sometimes dyspnea and palpitations.

Esophagitis

Acute or chronic inflammation of the esophageal mucous membrane. Symptoms include retrosternal pain, heartburn, dysphagia, and bleeding.

Esophageal Varices

Dilation of the veins of the esophagus. Rupture of these veins can lead to copious hemorrhage.

Stomach Disorders

Gastritis

Inflammation of the mucosa lining the stomach wall.

Peptic Ulcer

A solution of continuity in the gastric or duodenal mucosa, resulting in substance loss due to a necrotic process, often with little tendency toward spontaneous healing.

• Gastric Ulcer: Typically causes diffuse pain in the left hypochondrium.
• Duodenal Ulcer: Typically causes pain in the right upper quadrant.

Gastric Carcinoma

A malignant tumor affecting the stomach, often presenting with symptoms such as anorexia.

Intestinal Pathology

Malabsorption Syndrome

A set of conditions of different etiologies characterized by defective absorption of immediate principles (nutrients), vitamins, minerals, and water. Symptoms include diarrhea, fever, and anorexia.

Celiac Disease

A specific type of malabsorption characterized by intolerance to gluten and other related proteins found in wheat, barley, and rye.

Appendicitis

Acute inflammation of the vermiform appendix, often due to obstruction. Symptoms include nausea, vomiting, abdominal pain, and fever.

Ulcerative Colitis

An inflammatory condition of the colon and rectum of unspecified etiology. Symptoms include diarrhea, stools containing mucus and blood, fever, and anorexia.

Irritable Bowel Syndrome (IBS)

A functional disorder of the colon caused by changes in the central nervous system (CNS) or the neuromuscular system. Symptoms include abdominal discomfort, burning sensations, sharp pains, hard stools, and colon pain.

Diverticulosis

Herniations of the intestinal mucosa that occur in weak areas of the intestinal wall.

Intestinal Carcinoma

A malignant tumor appearing in the large intestine (colon and rectum). Symptoms include diarrhea, constipation, blood in the stool, a sensation of fullness, and pain in the iliac fossa.