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GI Tract in Disease_Large Intestine_Lower GI Bleeding_Colorectal Cancer_Diverticulosis

Pdf Summary

The document provides an overview of gastrointestinal tract diseases focusing on colorectal cancer, lower gastrointestinal bleeding, and diverticulosis. Colorectal cancer, a common cancer in the U.S., has a natural history starting from hyper-proliferation to adenocarcinoma. Screening for colorectal cancer is recommended for individuals over 45 years, especially those with a family history or certain conditions. Diagnosis is confirmed through colonoscopy and treatment involves surgery for localized tumors and chemotherapy for metastatic cases. Lower gastrointestinal bleeding originates predominantly in the colon and can present with symptoms like bleeding, anemia, and lightheadedness. Management includes volume resuscitation and procedures like colonoscopy for diagnosis and hemostasis. Diverticulosis, characterized by outpouchings in the colon, is often asymptomatic but can lead to diverticulitis or bleeding. Diagnosis is typically incidental and treatment ranges from antibiotics for uncomplicated diverticulitis to surgery for complications. Hemorrhoids, swollen veins in the anal canal, can be caused by various factors and diagnosed through physical examination. Treatment options include lifestyle changes, medication, and surgical procedures. Overall, the document emphasizes the clinical presentations, diagnostic methods, and treatment strategies for these gastrointestinal conditions.

Asset Subtitle

Kenika Robinson, MD

Keywords

gastrointestinal tract diseases

colorectal cancer

lower gastrointestinal bleeding

diverticulosis

adenocarcinoma

colonoscopy

chemotherapy

hemostasis

diverticulitis

hemorrhoids