Related Experiment Video
Updated: Jun 17, 2026
05:30
Laparoscopic Anatomical Right Hemihepatectomy via the In Situ Anterior Approach
Published on: August 8, 2025
Hemangiomas of the pelvis
Marcus C B Tan1, Matthew G Mutch
1Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA.
Clinics in Colon and Rectal Surgery
|December 17, 2009
Summary
Colorectal hemangiomas are rare causes of rectal bleeding, often missed by doctors. Diagnosis involves a triad of symptoms and imaging, with surgery being the recommended treatment.
Area of Science:
- Gastroenterology
- Vascular Malformations
- Colorectal Surgery
Background:
- Colorectal hemangiomas are uncommon vascular tumors.
- They are a frequent cause of misdiagnosed hematochezia.
- Symptoms include painless rectal bleeding, phleboliths, and skin hemangiomas.
Purpose of the Study:
- To review the diagnosis and management of colorectal hemangiomas.
- To highlight key diagnostic features and treatment strategies.
Main Methods:
- Literature review of colorectal hemangioma cases.
- Analysis of clinical presentation, diagnostic imaging, and treatment outcomes.
- Endoscopic and advanced imaging (CT/MRI) utilized for assessment.
Main Results:
- Most hemangiomas occur in the rectosigmoid region.
- Diffuse cavernous hemangiomas are the most frequent type.
- Diagnosis relies on clinical triad and imaging; endoscopy defines lesion extent.
Conclusions:
- Early diagnosis and appropriate management are crucial for colorectal hemangiomas.
- Surgical resection preserving sphincter function is the standard treatment.
- Multidisciplinary approach improves patient outcomes.
Related Concept Videos
01:18Veins of the Abdomen and Pelvis
The human body is a complex system of interconnected parts, and the circulatory system plays a crucial role in maintaining overall health. One key component of this system is the inferior vena cava, a large vein responsible for returning blood from the abdominopelvic viscera and abdominal walls to the heart.
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
01:25Abdominal Aorta
Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
The celiac trunk, a singular artery, divides into the left gastric artery, which...
01:07Development of Blood Vessels
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
01:28Esophageal Varices-II: Clinical Features and Management
Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
01:20Arteries of Lower Limbs
The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular artery,...
01:24Esophageal Varices-I: Introduction
Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...