Fournier’s Gangrene Fournier’s Gangrene is necrotising fasciitis of the perineum and external genitalia that can spread rapidly to the anterior abdominal wall (Meleney gangrene) and gluteal muscles. Urogenital causes of Fournier’s gangrene begin with necrosis of the anterior triangle, while…
Overview Bacterial infections of the skin and soft tissue can be classified as complicated and uncomplicated. Classification Description Examples Uncomplicated skin infections Involve superficial regions of the skin and appendages Impetigo, erysipelas, cellulitis, folliculitis, and simple abscesses Complicated skin infections…
Squamous Cell Carcinoma of the Anus Cancer of the squamous cell of the anus. THIS IS NOT SYNONYMOUS WITH RECTAL CANCER. Linked with HPV and anal intercourse. More favourable prognosis than colorectal cancer
Overview Above the dentate line Below the dentate line Origin Hindgut (Endoderm) Cloaca (Ectoderm) Epithelium Simple columnar Non-keratinizing stratified squamous Arterial supply Superior rectal artery br. IMA Inferior rectal artery br. of internal pudendal Venous drainage Internal hemorrhoidal plexus →…
Stoma A stoma is an opening from a hollow viscus connecting it to the skin surface. “Stoma” = opening. “Ostomy” = surgical creation of an artificial opening. Ostomy is performed when it is unwise to restore/maintain the continuity of intestines.…
Causes of gastrointestinal bleeding Type Primary Symptoms Differentials Upper gastrointestinal bleeding Hematemesis or Melena Ruptured Oesophageal varices, Dieulafoys’s lesion, peptic ulcer disease, Meckel’s diverticulum, gastric or esophageal cancer, Mallory-Weiss tear, coeliac disease, esophagitis, gastritis, and aortoenteric fistula Lower gastrointestinal bleeding…
Incisional hernia An incisional hernia is the herniation of abdominal contents through a “healed” surgical incision. A complication of abdominal surgery. Dx is clinical. It is not the same as wound evisceration (where abdominal contents are completely expelled without a…
Overview The inguinal canal is a tubular structure 3 – 5 cm long running parallel to the inguinal ligament. Men have a higher risk of developing hernias than women. The most common type of inguinal hernia in both men and…
Overview A hernia is an abnormal protrusion of an organ or the fascia of an organ outside the cavity that normally contains. It occurs through a defect in the surrounding tissue structure (the hernial orifice). Protrusion of intra-abdominal contents usually…
Acute Scrotum An acute scrotum is defined as sudden onset pain or swelling or tenderness of the scrotum or its contents Differentials for scrotal swelling Characteristic of the swelling Differentials Swelling on the scrotum Sebaceous cyst Painful swelling in the…