Nodular-bronchiectatic pattern in pulmonary nocardiosis: Immune status and treatment outcomes in a multicenter retrospective study.

Background: Pulmonary nocardiosis is a rare opportunistic infection, with approximately 15 % of patients being immunocompetent. The isolation rate of Nocardia spp. has recently increased, indicating rising clinical concern.

Renal Pelvic Cancer with Multiple Lung Metastases in a Patient with Polycystic Kidney Disease, Initially Diagnosed as Non-small Cell Lung Cancer: An Autopsy Case Report.

A 64-year-old man with autosomal dominant polycystic kidney disease (ADPKD) on hemodialysis presented with multiple lung masses. A computed tomography (CT)-guided biopsy revealed non-small-cell lung cancer (NSCLC). A cavitary mass in the right lung indicated primary NSCLC (cT2N1M1a, stage IVA).

Clinical features of organizing pneumonia in anti-aquaporin-4 antibody-positive neuromyelitis optica spectrum disorders.

Background: Anti-aquaporin-4 (AQP4) antibody is an autoantibody marker often observed in patients with neuromyelitis optica spectrum disorder (NMOSD). The pathological relevance of complicated pulmonary disorders in anti-AQP4 antibody-positive NMOSD remains unclear. We aimed to assess the clinical and histological relevance of complicated pulmonary disorders in anti-AQP4 antibody-positive NMOSD.