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Updated: Apr 18, 2026
12:23
Granulocyte-dependent Autoantibody-induced Skin Blistering
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[Deep-seated granulomatous pyoderma gangrenosum: A novel variant?]
K Baline1, K Khadir1, S Chiheb1
1Service de dermatologie et de vénéréologie, CHU Ibn Rochd, rue Lahcen Laarjoune, 20000 Casablanca, Maroc.
Annales De Dermatologie Et De Venereologie
|February 1, 2015
Summary
This case study details a rare presentation of pyoderma gangrenosum (PG) with unusual granulomatous infiltration. Prompt treatment with oral prednisone led to the resolution of cutaneous lesions and other symptoms.
Area of Science:
- Dermatology
- Pathology
- Internal Medicine
Background:
- Pyoderma gangrenosum (PG) is a rare inflammatory ulcerative condition.
- Typical PG cases present with distinct clinical and histopathological features.
Observation:
- A 15-year-old female presented with deep leg and forehead ulcers, abdominal pain, and vomiting.
- Histopathology revealed extensive dermal and hypodermal granulomatous infiltration and micro-abscesses.
- Imaging showed peritoneal fluid and a large carotid cave mass.
Findings:
- The patient's presentation was atypical for established pyoderma gangrenosum variants.
- Histological findings included deep granulomas, inconsistent with typical PG.
- Exclusion of infectious etiologies was crucial for diagnosis.
Implications:
- This case highlights the importance of considering atypical presentations of pyoderma gangrenosum.
- Deep granulomatous infiltration may occur in rare PG cases.
- Successful treatment with corticosteroids supports the diagnosis of this unusual PG variant.
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