Diseases of the Colon and Rectum

Therapeutics/Abdominal Abscesses and Gastrointestinal Fistula

Case A 60-year-old male presents with a 2-day history of crampy left lower abdominal pain. The day of presentation he has a fever to 102°F. He has no change in his bowel habits and currently has two to…

Treatment/Acute Diverticulitis

Case A 70-year-old woman presented to the emergency room with a 3-day history of left lower quadrant pain, bloating, diarrhea, and nausea. Physical examination revealed a temperature of 38.0°C and laboratory evaluation showed leukocytosis. Computed tomography scan demonstrated…

Therapeutics/Microscopic Colitis

Case A 68-year-old woman has a 10-month history of non-bloody diarrhea with abdominal pain. She has lost 4.5kg (10 lb). She occasionally passes mucus per rectum but does not have steatorrhea. She has not had any travel or…

Therapeutics/Consequences of Human Immunodeficiency Virus Infection

Case A 26-year-old gay male was diagnosed with Human Immunodeficiency Virus infection 5 years ago. His CD4 nadir was 140cells/mm3 2 years after diagnosis, but he has been on antiretroviral therapy for 3 years with excellent adherence (last…

Management/Acute Appendicitis

Case A 27-year-old male presents to the emergency department complaining of abdominal pain for the past 13 h. He describes the pain as gradual in onset and initially centered around the umbilicus that progressively intensified to become constant,…

Therapeutics/Acute Colonic Pseudo-obstruction

Case A 63-year-old man developed increasing abdominal distension 3 days after radical prostatectomy with bilateral lymph node dissection for prostate cancer. His postoperative course was complicated by atrial fibrillation with rapid ventricular response requiring intravenous rate control with…

Therapeutics/Ulcerative Colitis

Case A 20-year-old male with no past medical history presents with 2 months of rectal bleeding, increasingly loose stools associated with urgency, and nocturnal bowel movements. Additionally, he describes intermittent, subjective, low-grade fevers, a 4.5 kg (10 pound)…