Bird-related non-fibrotic hypersensitivity pneumonitis with bronchoalveolar lavage fluid eosinophilia that developed after COVID-19 vaccination: A case report.

A 60-year-old man who had been keeping seven budgerigars and four cockatiels in his house for 2 years developed dyspnea and was admitted to our hospital the day after receiving the second dose of the messenger RNA coronavirus disease 2019 vaccination. Chest high resolution computed tomography (HRCT) showed bilateral ground glass opacities without nodules or mosaic attenuation. IgG specific for budgerigars was positive.

Pseudocarcinomatous Hyperplasia of the Nose and Necrotic Tracheitis Associated with Acute Myeloid Leukemia.

A 29-year-old woman who had been diagnosed with acute myeloid leukemia presented with persistent grade-4 febrile neutropenia (FN) after initial chemotherapy with idarubicin and cytarabine. Despite intensive treatment, FN persisted. Subsequently, her nose became reddish and swollen, obstructing the nasal cavities.

Acute exacerbation of rheumatoid arthritis-associated interstitial lung disease triggered by COVID-19: What is the best practice for treatment?

We present a case of 79-year-old female with rheumatoid arthritis-associated interstitial lung disease (RA-ILD) developed an acute exacerbation (AE) triggered by coronavirus disease 2019 (COVID-19). The patient was unresponsive to a combination therapy of remdesivir, dexamethasone, and tocilizumab. Given that a recent multicenter cohort study reported ILD as a poor prognostic contributor in patients with RA and COVID-19, there may be potentially a certain number of patients with AE of RA-ILD triggered by COVID-19.

Predicting oxygen requirements in patients with coronavirus disease 2019 using an artificial intelligence-clinician model based on local non-image data.

Background: When facing unprecedented emergencies such as the coronavirus disease 2019 (COVID-19) pandemic, a predictive artificial intelligence (AI) model with real-time customized designs can be helpful for clinical decision-making support in constantly changing environments. We created models and compared the performance of AI in collaboration with a clinician and that of AI alone to predict the need for supplemental oxygen based on local, non-image data of patients with COVID-19.

Materials And Methods: We enrolled 30 patients with COVID-19 who were aged >60 years on admission and not treated with oxygen therapy between December 1, 2020 and January 4, 2021 in this 50-bed, single-center retrospective cohort study.

Successful Treatment with High-dose Steroids for Acute Exacerbation of Idiopathic Pulmonary Fibrosis Triggered by COVID-19.

We herein report a case of acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) triggered by COVID-19. An 87-year-old woman tested positive for COVID-19 on a polymerase chain reaction test, and computed tomography revealed ground-glass opacity (GGO) superimposed on a background pattern consistent with usual interstitial pneumonia. Considering these data, we diagnosed her with AE-IPF.

Bronchial carcinoid tumor managed with bronchial artery embolization before endobronchial resection: A case report.

Endobronchial resection using a bronchoscope is often selected as treatment for carcinoid tumors located in the central airways. However, massive bleeding is one of the most serious complications during bronchoscopic surgery. Here, we report the case of a 77-year-old female with a typical carcinoid tumor located in the right truncus intermedius who underwent bronchial artery embolization (BAE) one day before endobronchial intervention using a flexible bronchoscope.

Prognostic impact of serum procalcitonin in non-small cell lung cancer.

Introduction: Increased serum procalcitonin (PCT), a well-known biomarker for sepsis, has been reported in several cancer types. We aimed to investigate the prognostic impact of PCT in non-small cell lung cancer (NSCLC).

Methods: Medical records of 51 consecutive patients with NSCLC (Aichi Medical University Hospital) admitted between July 2017 and July 2018 were retrospectively reviewed.

Bicytopenia in Primary Lung Melanoma Treated with Nivolumab.

A 73-year-old man who was a current smoker complained of weakness in his limbs and slow movement and was diagnosed with primary lung melanoma with brain metastases. Following stereotactic brain radiotherapy, nivolumab was administrated. After the first cycle of nivolumab, his blood neutrophil count and hemoglobin levels started to decline.

A case of autoimmune pulmonary alveolar proteinosis with fluctuating lung shadows in parallel with cigarette smoke burden.

The association between the development of pulmonary alveolar proteinosis (PAP) and dust inhalation has been established; however, the link between PAP and smoking is less clear. A 46-year-old man with mild bronchial asthma and a 52-pack-year smoking history was diagnosed with autoimmune PAP (APAP) based on computed tomography (CT) shadows, pathologic findings of the lung, and a high serum level of anti-granulocyte macrophage colony-stimulating factor (GM-CSF) IgG autoantibody. Smoking was stopped and he was treated three times with unilateral whole lung lavage (WLL).