Скачать или смотреть Dermatology MCQs Explained for Exams

In this dermatology MCQ discussion, we explore a challenging real-world scenario: a painful peristomal ulcer in a patient with Crohn’s disease and rheumatoid arthritis on adalimumab. Despite multiple interventions, the lesion persists — so what’s the most likely diagnosis?

👉 Correct answer: Pyoderma gangrenosum (PG)

This video breaks down:
🔹 The clinical clues that point toward PG and rule out other causes like contact dermatitis or pressure ulcers
🔹 The importance of recognizing violaceous, undermined borders — a hallmark feature of PG
🔹 The concept of pathergy (why trauma or surgery can trigger PG at stoma sites)
🔹 Diagnostic approach and when to biopsy
🔹 Management principles — why standard wound care fails and systemic immunosuppression is key

Perfect for:

Dermatology residents and students

Surgical trainees managing stoma complications

Clinicians preparing for dermatology MCQs and exams

💡 Key takeaway: Not every peristomal ulcer is mechanical — sometimes, it’s an autoimmune clue.