What are the differential diagnoses for a painful, erythematous swelling at a site related to ulcerative colitis, such as after surgery, pouch‑anal anastomosis, stoma, or biopsy?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board

Educational purpose only • Exercise caution as content is pending human review

Article Review Status

Submitted

Under Review

Approved

Last updated: February 18, 2026 • View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Related Questions

What does the abdominal radiograph showing gas‑filled loops of small and large bowel up to 4.9 cm in the central and right abdomen with a severe colonic stool burden indicate in a patient with ulcerative colitis?

What is the role of p-ANCA (perinuclear anti-neutrophil cytoplasmic antibodies) and c-ANCA (cytoplasmic anti-neutrophil cytoplasmic antibodies) in diagnosing Ulcerative Colitis (UC)?

What are the differential diagnoses for ulcerative colitis presenting with bloody diarrhea, abdominal cramping, urgency, weight loss, and anemia?

In a patient with suspected ulcerative colitis (UC) presenting with bloody diarrhea, which part of the bowel is most likely to be affected?

What is the best treatment option for a 24-year-old man with ulcerative colitis (UC) presenting with bloody diarrhea, left lower quadrant pain, and sigmoidoscopy findings of loss of normal vascular pattern with erosions up to the splenic flexure?

Is it safe for a patient taking about 60 mg of amphetamine‑dextroamphetamine (Adderall) per month to also use low‑dose quetiapine (Seroquel) as a sleep aid?

In a patient with markedly elevated alkaline phosphatase, aspartate aminotransferase, and alanine aminotransferase, an alkaline phosphatase isoenzyme analysis shows a liver fraction of approximately 160 U/L and a bone fraction of approximately 68 U/L; what does this pattern indicate?

What are the differential diagnoses, initial work‑up, and management options for posterior knee pain in an adult?

Does atomoxetine (Strattera) reverse the pharmacologic effects of lisdexamfetamine (Vyvanse)?

What is the appropriate management of vaginal prolapse in an elderly woman residing in a skilled‑nursing facility with limited mobility, possible cognitive impairment, and multiple comorbidities?

What are the recommended daily vitamin D (cholecalciferol) supplementation doses for all age groups, including infants, children, adults, pregnant or lactating women, and the elderly, and when are higher doses indicated?

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.