Granulomatosis with polyangiitis and neurofibromatosis type 1: a fortuitous association? (a case report).

The Pan African Medical Journal
Berriche OlfaAlaya Wafa

Abstract

Neurofibromatosis type 1 is a common neurocutaneous syndrome, caused by an alteration of the NF-1 gene, which is a tumor suppressor. It has been reported to be associated with different types of benign and malignant tumors but its association to systemic diseases is uncommon and has not been reported previously to be associated with vasculitis particularly granulomatosis with polyangiitis (GPA). We report a case of a 17-year-old male patient, who, during his follow-up for neurofibromatosis type 1, in our outpatient consultation; we objectified hypereosinophilia at 1700 eosinophils/μl without a history of asthma or atopy. He reported a nasal obstruction with epistaxis and no rhinorrhea or pruritus. Physical examination revealed afebrile patient with the lesions of his neurofibromatosis type 1 without cutaneous rash or urticaria. Rhinoscopy didn't show any lesion. Laboratory tests revealed a normal renal function, negative 24-hour urine protein, and no biological inflammatory syndrome. Immunological tests noted positives cytoplasmic antineutrophil cytoplasmic antibodies, and a slight increase in antinuclear antibodies at 1/180. Extensive infectious research was negative. Computed tomography (CT) of the sinuses revealed a non-obst...Continue Reading

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