This is a parastomal ulcer (Fig. 103.1), lying below an end ileostomy. It is not a “peristomal ulcer” as “peri” means around, while “para” means beside. Features of the condition displayed by this patient include an irregular border, undermined in many areas, with a base of granulation tissue. The main differential diagnosis is parastomal pyoderma gangrenosum (PPG), but in this case, there is no evidence of ischemia or vasculitis. (Ischemia is manifest as a black/gray, or greenish or yellowish tinge to the base of the ulcer. Once the ulcer becomes chronic, granulations cover the base.) It is often hard to differentiate a parastomal ulcer from PPG, especially when the ulcer is chronic, but the evolution of the condition can be a clue. Nonspecific parastomal ulcers generally heal with appropriate management. If they don’t heal, it makes PPG more likely.

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What Condition Is Depicted in This Photograph? What Do You Call It, How Does It Happen, and How Do You Manage It?

  • James M. Church

摘要

This is a parastomal ulcer (Fig. 103.1), lying below an end ileostomy. It is not a “peristomal ulcer” as “peri” means around, while “para” means beside. Features of the condition displayed by this patient include an irregular border, undermined in many areas, with a base of granulation tissue. The main differential diagnosis is parastomal pyoderma gangrenosum (PPG), but in this case, there is no evidence of ischemia or vasculitis. (Ischemia is manifest as a black/gray, or greenish or yellowish tinge to the base of the ulcer. Once the ulcer becomes chronic, granulations cover the base.) It is often hard to differentiate a parastomal ulcer from PPG, especially when the ulcer is chronic, but the evolution of the condition can be a clue. Nonspecific parastomal ulcers generally heal with appropriate management. If they don’t heal, it makes PPG more likely.