Diagnosis: Granulomatosis with polyangiitis (cutaneous involvement)
A 45-year-old male presents with a 6-month history of nasal deformity and painful cutaneous ulcers on the face and extremities. He also reports recurrent sinus infections, raising suspicion for a systemic condition associated with vasculitis and significant cutaneous manifestations.
A 45-year-old male presents with a 6-month history of nasal deformity characterized by a saddle nose deformity and painful ulcerations on his face and extremities. Physical examination reveals multiple necrotic ulcers on the nasal tip and cheeks, along with purpura on the lower extremities. He has a history of recurrent sinus infections and nasal obstruction.Cutaneous ulcers: Located primarily on the face and extremities.Saddle nose deformity: Resulting from destruction of nasal cartilage.Purpura: Present on the lower extremities.Sinus disease: Chronic sinusitis with nasal obstruction.Systemic symptoms: Mild fatigue and weight loss reported.
The patient first noticed nasal deformity and skin lesions approximately 6 months ago, which have progressively worsened. He has a history of recurrent sinusitis and was treated with antibiotics multiple times without resolution. The patient denies any recent infections or travel history. His past medical history is significant for hypertension, and there is no notable family history of autoimmune diseases. He is a non-smoker and works as an accountant.Onset: Symptoms began 6 months ago with nasal deformity.Triggers: No identifiable environmental or infectious triggers reported.Prior treatments: Repeated courses of antibiotics for sinusitis.Past medical history: Hypertension, well-controlled.Family history: No autoimmune diseases reported.Social history: Non-smoker, works indoors.
Acute / First-Line ManagementGlucocorticoids: Prednisone 1 mg/kg/day for 4-6 weeks, followed by a taper.Cyclophosphamide: Administered at 2 mg/kg/day orally or 0.5-1 g/m² IV every 1-3 months for severe cases.Rituximab: 375 mg/m² IV weekly for 4 weeks may be considered for refractory cases.Workup and Diagnostic ConfirmationSerological tests: ANCA (anti-PR3 and anti-MPO) testing to support diagnosis.Imaging: CT sinuses to evaluate for sinus involvement and assess for any complications.Skin biopsy: May reveal leukocytoclastic vasculitis with necrotizing granulomas.Long-Term ManagementImmunosuppressive therapy: Maintenance therapy with azathioprine or methotrexate may be required.Regular follow-up: Monitoring for disease activity and side effects of therapy.Supportive care: Wound care for cutaneous ulcers and management of sinus disease.
Granulomatosis with polyangiitis: Characterized by necrotizing granulomas, often involving the upper respiratory tract and kidneys, and associated with ANCA positivity.Churg-Strauss syndrome: Eosinophilic vasculitis presenting with asthma, eosinophilia, and systemic vasculitis; often involves the lungs and skin.Behçet's disease: Systemic vasculitis that can cause oral and genital ulcers, uveitis, and skin lesions, often with a Mediterranean or Asian background.Other cutaneous vasculitides: Such as hypersensitivity vasculitis, which can present with palpable purpura and ulcerations but typically lacks systemic involvement.Pyoderma gangrenosum: Characterized by painful ulcers, often associated with systemic diseases, but usually presents with a more localized ulcerative process.Infectious causes: Such as cutaneous tuberculosis or deep fungal infections, which can mimic ulcerative lesions but often have distinct clinical and microbiological features.Vasculitis secondary to infections: Such as post-streptococcal or viral-induced vasculitis, which may present with similar cutaneous findings.Systemic lupus erythematosus: Can cause skin lesions and systemic involvement but typically has additional features such as photosensitivity and systemic symptoms.
High-Yield PearlsANCA positivity: The presence of ANCA, particularly anti-PR3, is a key serological marker in diagnosing granulomatosis with polyangiitis.Systemic involvement: Cutaneous manifestations can precede systemic symptoms; hence, a thorough evaluation of organ systems is crucial.Immunosuppressive therapy: Early initiation of glucocorticoids and immunosuppressants can significantly improve outcomes and prevent complications.Cutaneous ulcers: Management may require multidisciplinary care, including dermatology and wound care specialists, to optimize healing.Regular monitoring: Long-term follow-up is essential to monitor for recurrence and manage treatment-related side effects.Granulomatosis with polyangiitis is a systemic condition where early recognition and management are vital to prevent irreversible damage.
Tags: GPA, Wegener, vasculitis