Propylthiouracil-Induced Vasculitis With Alveolar Hemorrhage Confirmed by Clinical, Laboratory, Computed Tomography, and Bronchoscopy Findings: A Case Report and Literature Review

An Unusual Presentation of Propylthiouracil-Induced Immunoglobulin A Vasculitis With Positive Anti-proteinase-3 and Anti-myeloperoxidase Antibodies

Propylthiouracil (PTU) has been identified as a known cause of anti-neutrophil cytoplasmic antibodies-associated vasculitis. However, the association between PTU and immunoglobulin A (IgA) vasculitis remains uncertain due to its rarity and diverse clinical presentation. Here, we report the case of a 57-year-old female with a past medical history of chronic leukopenia and Graves' disease treated with PTU that presented with pancytopenia and widespread non-blanching ecchymoses on the bilateral legs. A punch biopsy of the medial leg demonstrated IgA vasculitis and autoimmune antibody analysis revealed increased levels of anti-proteinase 3 antibodies compared to anti-myeloperoxidase antibodies. These findings led to the diagnosis of PTU-induced IgA vasculitis. Following the discontinuation of PTU, there was marked improvement in the appearance of the patient's cutaneous manifestations and hematological indices.

Propylthiouracil-induced vasculitis

Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis is an autoimmune condition characterized by necrotizing inflammation of small vessels throughout the body. Pharmaceutical agents have been noted as an emerging etiology. This case presents a 41-year-old woman with a longstanding history of Graves' disease who previously failed other interventions and was started on propylthiouracil (PTU) nearly 2 years prior to symptom onset. The patient presented with severely pruritic purpuric lesions on her lower extremities that transformed into large bullae and became extremely painful. A thorough workup revealed only slightly elevated perinuclear ANCA and a mild protein S deficiency. Tissue biopsy was consistent with thrombotic vasculitis. A presumptive clinical diagnosis of PTU-induced vasculitis was made. Because the condition is relatively uncommon, the best course of treatment has not clearly been defined. Though PTU was immediately discontinued, the patient also required corticosteroids and referral for tissue debridement. While some cases have had symptom resolution after cessation of PTU, this case adds to a growing body of evidence for the timely use of corticosteroids in controlling PTU-induced vasculitis.

Propylthiouracil-Induced Anti-Neutrophil Cytoplasmic Antibody Vasculitis Presenting with Red Eye Followed by Pulmonary Hemorrhage: Diagnostic and Management Considerations

Patient: Female, 34-year-old

Final Diagnosis: Vascuitis

Symptoms: Hemoptysis

Medication:—

Clinical Procedure: —

Specialty: Rheumatology

Hepatitis B Virus-associated Vasculitis: Multiple Cavitary Masses in the Lung Mimicking Granulomatous Polyangiitis

Hepatitis B virus (HBV) is one of the main causes of polyarteritis nodosa (PAN). We herein report a rare case of HBV-associated vasculitis presenting with multiple pulmonary nodules, mimicking granulomatous polyangiitis (GPA), with no abnormalities of the ear, nose, or kidney. A surgical lung biopsy revealed geographic necrosis surrounded by palisading granuloma and capillaritis. Because the HBV surface antigen was positive with a serum HBV-DNA level of 2.9 log10 copies/mL, we first treated the patient with entecavir and 2 weeks of prednisone 50 mg/day. The pulmonary nodules resolved, and seroconversion was observed after one month.