Pyoderma gangrenosum with necrotizing sclerokeratitis after cataract surgery
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Updated: Jul 10, 2026

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Published on: May 5, 2022
Pierre Fournié1, François Malecaze, Julien Coullet
1Centre Hospitalier Universitaire Toulouse, Hôpital Purpan, Service d'Ophtalmologie, Toulouse, France. pierrefournie@yahoo.com
Abstract:
A 78-year-old man who had had uneventful extracapsular cataract extraction in the left eye 3 months earlier developed pyoderma gangrenosum (PG)-associated peripheral ulcerative keratitis (PUK) after suture removal. The patient had a 13-year history of PG associated with monoclonal immunoglobulin-A gammopathy. He presented with extensive, painful PUK at the incision site, with a descemetocele and a high risk for perforation. Fibrin glue tissue adhesive was used to stabilize the corneal ulcer as an adjunct to topical and systemic treatment. The patient had been treated with tapering doses of prednisone and cyclophosphamide (50 mg/day). High-dose human intravenous immunoglobulin (0.4 mg/kg/d for 4 days) was administered. The ulcer healed 1 month later with a loss of visual acuity. To our knowledge, this is the first reported case of PG-associated sclerokeratitis following cataract surgery. Early recognition of this rare ocular localization of PG is important to institute the appropriate therapy.
Insights
This case report details a rare instance of pyoderma gangrenosum (PG)-associated peripheral ulcerative keratitis (PUK) occurring after cataract surgery. Prompt recognition and treatment are crucial for managing this sight-threatening condition.
Area of Science:
- Ophthalmology
- Dermatology
- Immunology
Background:
- Cataract surgery can rarely trigger ocular complications.
- Pyoderma gangrenosum (PG) is a neutrophilic dermatosis with potential systemic associations.
- Peripheral ulcerative keratitis (PUK) is a severe corneal inflammation often linked to systemic autoimmune diseases.
Observation:
- A 78-year-old man developed painful PUK at the cataract surgery incision site three months post-operation.
- The patient had a 13-year history of PG associated with monoclonal immunoglobulin-A gammopathy.
- The PUK presented with a descemetocele, indicating a high risk of corneal perforation.
Findings:
- Fibrin glue was used to stabilize the corneal ulcer.
- Treatment included tapering corticosteroids, cyclophosphamide, and high-dose intravenous immunoglobulin.
- The corneal ulcer healed within one month, but with significant visual acuity loss.
Implications:
- This is the first reported case of PG-associated sclerokeratitis following cataract surgery.
- Early diagnosis of ocular PG is vital for timely and appropriate management.
- This case highlights the importance of considering PG in patients with unexplained PUK after ocular surgery.
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