Bronchogenic Cyst and Pericardial Agenesis: A Case Report.

Bronchogenic cysts are a rare congenital condition, and their association with pericardial agenesis is even more uncommon. We present the case of a 23-year-old patient who was diagnosed with an upper lobe bronchogenic cyst and subsequently underwent an upper lobectomy. Further evaluation revealed the presence of complete left pericardial agenesis.

Post COVID-19 pneumo-hematocele: clinical presentation and treatment pathway.

Objectives: The appearance of characteristic pulmonary lesions has been noted after COVID-19, being described as post-COVID-19 pneumo-hematocele. The aim of this study is to describe the clinical, histopathologic, and imaging features of pneumo-hematocele and to suggest a treatment algorithm for these patients.

Methods: A retrospective study was performed in patients admitted with a diagnosis of SARS-CoV2 infection from March 2020 to September 2021 who presented a pneumo-hematocele on imaging studies.

Spontaneous pneumomediastinum in COVID-19 patients. Case series.

Spontaneous pneumomediastinum is defined as the presence of free air within the mediastinum without an apparent cause such as chest trauma. It is a benign, self-limiting condition that is conservatively treated. Clinical diagnosis is based on two symptoms: chest pain and dyspnea; and on a particular sign: subcutaneous emphysema.

Corrigendum: CXCL17 Is a Specific Diagnostic Biomarker for Severe Pandemic Influenza A(H1N1) That Predicts Poor Clinical Outcome.

[This corrects the article DOI: 10.3389/fimmu.2021.

CXCL17 Is a Specific Diagnostic Biomarker for Severe Pandemic Influenza A(H1N1) That Predicts Poor Clinical Outcome.

The C-X-C motif chemokine ligand 17 (CXCL17) is chemotactic for myeloid cells, exhibits bactericidal activity, and exerts anti-viral functions. This chemokine is constitutively expressed in the respiratory tract, suggesting a role in lung defenses. However, little is known about the participation of CXCL17 against relevant respiratory pathogens in humans.

Lung necrosectomy in pediatric patients with necrotizing pneumonia.

Introduction: Necrotizing pneumonia is the consolidation of lung parenchyma with destruction and necrosis, forming solitary or multiloculated radiolucent foci. When antibiotic treatment fails and clinical course does not improve, patients might need lung tissue resection: segmentectomy, lobectomy or bilobectomy. We have performed a more conservative surgical approach in pediatric patients with necrotizing pneumonia, lung necrosectomy: resection of unviable necrotic tissue, to preserve more healthy and potentially recoverable lung parenchyma.