Varicosities of the hemorrhoidal venous plexus
External hemorrhoids
Located below (distal to) the dentate line; somatic innervation (painful)
Covered by squamous epithelium
Internal hemo...
Symptoms
Bleeding (~60%)
Classically, bright red blood per rectum, may ...
Fiber supplements and adequate fluid intake
Stool softeners
Anal hygiene
Hemorrhoids are a recurrent disease, even after surgical excision. Preventive measures should...
Encourage physical fitness, weight management, and dietary compliance.
Avoid prolonged sitting and straining on the toilet.
Guttenplan M. The Evaluation and Office Management of Hemorrhoids for the Gastroenterologist. Curr Gastroenterol Rep. 2017;19(7):30.
...
K64.9 Unspecified hemorrhoids
K64.4 Residual hemorrhoidal skin tags
K64.1 Second degree hemorrhoids
K64.3 Fourth degree hemorrhoids
K64.0 First degree hemorrhoids
K64.2 Third degree hemorrhoids
K...
Hemorrhoids are common. Internal hemorrhoids are typically painless. External hemorrhoids are typically painful.
Many cases can be managed conservatively
All patients should be encourage...
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<bold>(1) Anatomy of the anal canal showing the location of internal and external hemorrhoids.</bold>
<bold><italic>Figure 15-18</bold> Internal and external hemorrhoids.</bold> Hemorrhoids bleed regularly, leaving bright red blood on the stool surface.
<bold><italic>Figure 15-18</bold> Internal and external hemorrhoids.</bold> Hemorrhoids bleed regularly, leaving b...
Adenocarcinoma of the colon. The opened colon contains an elevated, centrally ulcerated, infiltrating mass.
Adenocarcinoma of the colon with intestinal obstruction. The lumen of the colon at the site of the cancer is narrow. The colon above the obstruction is dilated.
Adenocarcinoma of the colon with intestinal obstruction. The lumen of the colon at the site of the cancer is narrow. The colon above the o...
<bold>Figure 56-4</bold> External hemorrhoid in a 2-year-old male with recurrent straining because of chronic constipation.
Tubular adenoma of the colon. A pedunculated tubular adenoma.
Tubular adenoma of the colon. A low-power photomicrograph of a tubular adenoma of the colon shows closely packed epithelial tubules. The fibrous stalk is vascular and covered by normal colonic epithelium.
Tubular adenoma of the colon. A low-power photomicrograph of a tubular adenoma of the colon shows closely packed epithelial tubules. The fi...