While an anal abscess is an infection within one or more of the anal spaces, an anal fistula (Choice B) is a tunneling between the anus or rectum and another epithelial lined space (eg, the skin overlying the drainage site). Fifty percent of patients with anal abscesses will go on to develop a chronic fistula from the involved anal gland to the overlying skin. Patients with fistulas typically present with an anal abscess that persists after incision and drainage, or with a pustule-like lesion in the perianal or ischiorectal area that continually drains. Surgical repair is usually necessary to eliminate the fistula while preserving fecal continence.

You've been sitting on the toilet incorrectly your whole life

This is a surgical video demonstrating the release and skin grafting of the middle and ring fingers. It demonstrates the marking, dissection, and repair of the fingers.

The male reproductive system includes the scrotum, testes, spermatic ducts, sex glands, and penis. These organs work together to produce sperm, the male gamete, and the other components of semen.

External jugular vein cannulation is an integral part of modern medicine and is practiced in virtually every health care setting. Venous access allows sampling of blood, as well as administration of fluids, medications, parenteral nutrition, chemotherapy, and blood products. [1] This topic describes placement of an intravenous (IV) catheter into the external jugular vein. A similar technique can be used for placement of IV catheters at different anatomic sites.

Tennis elbow is caused by doing the same forceful arm movements over and over. It creates small, painful tears in the tendons in your elbow. This injury can be caused by tennis, other racquet sports, and activities such as turning a wrench, prolonged typing, or chopping with a knife. The outside (lateral) elbow tendon is most commonly injured. The inside (medial) and backside (posterior) tendons can also be affected. This article discusses surgery to repair tennis elbow

The kid swallowed a coin. Just watch how professionally a doctor extracts it, while another hospital might even perform a surgery and empty the parent's...

How to place an NG tube in a baby, plus some helpful tips!

This medical animation illustrates how acute myeloid leukemia (AML), the most common type of cancer in adults, develops in the blood and bone marrow. The narrator also discusses the symptoms of AML and AML treatment options.

The "great arteries" in this anomaly refer to the aorta and the pulmonary artery, the two major arteries carrying blood away from the heart. In cases of transposition of the great arteries, these vessels arise from the wrong ventricle. They are "transposed" from their normal position so that the aorta arises from the right ventricle and the pulmonary artery from the left ventricle. Other heart defects may occur along with transposition of the great arteries. About 25 percent of children with transposition will also have a ventricular septal defect (VSD) . In nearly a third, the branching pattern of the coronary arteries as they leave the transposed aorta is unusual. Infants may also have narrowing below the pulmonary valve that blocks blood flow from the left ventricle to the lungs.

An atrioventricular septal defect (AVSD) is a heart defect in which there are holes between the chambers of the right and left sides of the heart, and the valves that control the flow of blood between these chambers may not be formed correctly. This condition is also called atrioventricular canal (AV canal) defect or endocardial cushion defect. In AVSD, blood flows where it normally should not go. The blood may also have a lower than normal amount of oxygen, and extra blood can flow to the lungs. This extra blood being pumped into the lungs forces the heart and lungs to work hard and may lead to

Probes, landmarks, and general windows to obtain transthoracic echo views

Forsus is an orthodontic appliance which is used to correct overjet or Class II dental malocclusion.

Baby massage for constipation relieving.

Wound-closure technologies are becoming less painful and more efficient at closing wounds

Inserting the Enlite Sensor with insulin pump

How do you know if you have an STD? There’s only one way — you have to get tested. How do they test for STDs? Here’s the good news: STD testing is usually quick and painless. Get answers to all your questions about how to get tested for STDs.

The birth control shot — also called the Depo shot or Depo Provera — is an effective way to prevent pregnancy. How does the birth control shot work? Find out in this video.

A brief description of the pathophysiology, clinical features, warning signs, diagnosis and management of Dengue fever. This description is based on the World Health Organisation guidelines of the management of Dengue fever.

Spermicide is a birth control method that contains chemicals that stop sperm from moving. Spermicides are available in different forms, including creams, film, foams, gels, and suppositories. Spermicide can be used alone, or it can be used with other birth control methods to make them more effective. It is always used with the diaphragm and cervical cap.