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A paraumbilical (or umbilical) hernia is a hole in the connective tissue of the abdominal wall in the midline with close approximation to the umbilicus. If the hole is large enough there can be protrusion of the abdominal contents, including omental fat and/or bowel .
The latter is of a stronger hold and is commonly used for larger defects in the abdominal wall. Most surgeons will not repair the hernia until 5–6 years after the baby is born. Most umbilical hernias in infants and children close spontaneously and rarely have complications of gastrointestinal-content incarcerations. [10]
However, 10% of those with more severe or additional abnormalities die from it. The organs themselves are fully functional; the difficulty lies in fitting them inside the abdomen. The condition is, in fact, a hernia requiring only replacement and strengthening of the passageway through which it occurred. After surgery, increased pressure in the ...
A Richter's hernia occurs when the antimesenteric wall of the intestine protrudes through a defect in the abdominal wall. This is distinct from other types of abdominal hernias in that only one intestinal wall protrudes through the defect, such that the lumen of the intestine is incompletely contained in the defect, while the rest remains in the peritoneal cavity.
The condition can be diagnosed by physical exam, and must be differentiated from an epigastric hernia or incisional hernia, if the patient has had abdominal surgery. [3] Hernias may be ruled out using ultrasound. [6] In infants, they typically result from a minor defect of the linea alba between the rectus abdominis muscles.
Spigelian hernia, also known as spontaneous lateral ventral hernia Amyand's hernia : containing the appendix vermiformis within the hernia sac Brain herniation , sometimes referred to as brain hernia, is a potentially deadly side effect of very high intracranial pressure that occurs when a part of the brain is squeezed across structures within ...
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A periumbilical mass is not always a Sister Mary Joseph nodule. Other conditions that can cause a palpable periumbilical mass include umbilical hernia , infection, and endometriosis . Medical imaging , such as abdominal ultrasound, may be used to distinguish a Sister Mary Joseph nodule from another kind of mass.