Persistent COVID-19 improved with immunoglobulin replacement therapy in Good's syndrome.

A 69-year-old man with a history of thymoma resection was diagnosed with COVID-19 pneumonia. Initially, the patient responded well to molnupiravir, but he experienced a relapse. Subsequent steroids for COVID-19-related organizing pneumonia (OP) led to temporary improvement, but his condition deteriorated when the steroids were tapered off.

Concurrent trastuzumab deruxtecan-induced interstitial lung disease and COVID-19 in the treatment of advanced breast cancer.

Patients with cancer are at an increased risk of developing coronavirus disease 2019 (COVID-19) infection. Trastuzumab deruxtecan (T-DXd) is an antibody-drug conjugate (ADC) against epidermal growth factor receptor 2 (HER2)-positive cancer, known to cause drug-induced interstitial lung disease (DILD), including drug-induced pneumonitis. A 60-year-old woman with breast cancer developed a fever during treatment with T-DXd and was diagnosed with COVID-19.

Physiologic F-FDG muscle uptake in severe COPD: Implications for accurate lung cancer staging.

Recognizing physiologic F-fluorodeoxyglucose (FDG) uptake in severe COPD is crucial to avoid mistaking it for lung cancer metastasis. Correlating F-FDG avid lesions with co-registered computed tomography is essential for accurate lung cancer staging and preventing unnecessary interventions.

Transient asymptomatic pulmonary opacities in a patient with MET exon 14 skipping non-small cell lung cancer: A case report.

Mesenchymal epithelial transition factor receptor (MET) tyrosine kinase inhibitors (MET-TKIs) have been approved for the treatment of non-small cell lung cancers with MET exon 14 skipping mutations. Transient asymptomatic pulmonary opacities (TAPOs) associated with epidermal growth factor receptor (EGFR)-TKIs have been reported. Here, we report a case wherein ground-glass opacities (GGOs) appeared during the course of treatment with tepotinib, a MET-TKI, but spontaneously resolved with drug withdrawal, after which treatment was resumed with a reduced dose.

Epipericardial fat necrosis in a patient with sudden chest pain.

Epipericardial fat necrosis (EFN) may be considered in the differential diagnosis of chest pain. Clinicians should be kept in mind that EFN is self-limiting and is often followed up with imaging.

Negative pressure pulmonary edema in a patient with COVID-19.

Negative pressure pulmonary edema (NPPE) should be considered in the differential diagnosis from an episode of asphyxia, and even if NPPE is diagnosed, the possibility of COVID-19 should be kept in mind under coronavirus pandemic conditions.