A Young Woman with Hemoptysis as the main Manifestation of Isolated UAPA with Multiple Vascular Malformations.

Background: The unilateral absence of a pulmonary artery (UAPA) is a very rare congenital pulmonary vascular malformation. Since the first case was reported in 1868, the overall incidence of UAPA has been at a level of 1/300,000 - 1,200,000. Isolated UAPA without other cardiac anomalies is rare.

Allergic Bronchopulmonary Mycosis with Eosinophilia Caused by Schizophyllum Infection.

Background: As an opportunistic pathogenic fungus, Schizophyllum has been rarely reported to infect humans. By reporting a case of definite diagnosis of Schizophyllum infection, we aim to improve clinicians' understanding of this bacterium.

Methods: By reporting a case with cough and sputum as the main manifestations, after empirical antiinfective chest CT suggesting a more progressive inflammatory lesion and a mass-like lesion in the paratracheal area of the main airways, a diagnosis of Schizophyllum infection was finally made by bronchoscopy with the delivery of metagenomic next-generation sequencing (mNGS).