A 39-year-old woman with a history of juvenile chronic arthritis since she was 16 years old, very disabling, non-diabetic, with bilateral hip replacement due to avascular necrosis of the femoral head secondary to prolonged treatment with steroids, chronic peritoneal dialysis in kidney disease.
Consultation for lesions in soles of the feet, pretibial region and buttocks, exophytic, hyperkeratotic.
The patient was referred to dermatology and a biopsy of the lesions was performed, with a diagnosis of reactive perforating collagen.
After reviewing the literature, treatment with allopurinol was initiated with significant improvement of the lesions at one month and disappearance of pruritus.
