Mepolizumab in allergic bronchopulmonary aspergillosis complicated by infection.

Allergic bronchopulmonary aspergillosis (ABPA) is an allergic reaction caused by the fungus Aspergillus, and it is often treated with steroids or antifungal agents. However, long-term use of these medications can lead to infections and drug interactions. We present the case of a 71-year-old woman with ABPA who was diagnosed with hepatitis B and active hepatitis C, and sputum analysis revealed the presence of bacteria. Oral steroids were initially administered, but the patient was switched to mepolizumab because of numerous infectious complications. The early introduction of mepolizumab is effective in patients with ABPA complicated by infectious diseases.

A case of Rasmussen's aneurysm caused by pulmonary nontuberculous mycobacterium.

Rasmussen's aneurysm was originally described as a rare cause of hemoptysis in tuberculosis. Dilatation of the pulmonary artery wall is caused by tuberculosis inflammation. Recently, the incidence of non-tuberculous mycobacterial (NTM) disease has increased; it now exceeds that of tuberculosis. We report a Rasmussen's aneurysm due to NTM.

Lung cancer that recurred as carcinoma en cuirasse.

Cutaneous metastasis from lung cancer is rare. We report an unusual cutaneous metastasis known as "carcinoma en cuirasse" 7 years after left upper lobectomy to treat an adenocarcinoma of the lung.