Intravascular large B-cell lymphoma with respiratory failure diagnosed by random skin biopsy: A case report.

Intravascular large B-cell lymphoma (IVLBCL) typically involves nonspecific symptoms that complicate diagnosis. This report discusses the case of a 70-year-old man, who presented with dyspnea, fatigue, and weight loss that evolved into severe respiratory failure, diagnosed with IVLBCL via random skin biopsy. The initial improvement in respiratory symptoms was followed by coronavirus disease.

Nodule-type pneumonitis mimicking lung abscess or tumor recurrence on chest computed tomography identified as osimertinib-induced pneumonitis: A case report.

Osimertinib-induced pneumonitis usually manifests as ground glass opacities (GGO) on chest computed tomography (CT) scans. Here, we encountered a case involving a 42-year-old woman who had nodule-type pneumonitis mimicking lung abscess or tumor recurrence caused by osimertinib. When a nodular pattern is seen on the chest CT scan of a patient receiving osimertinib treatment, drug-induced pneumonitis should be considered as a differential diagnosis.

Long-term survival of a patient with uterine cancer-induced pulmonary tumor thrombotic microangiopathy following treatment with platinum-based chemotherapy and bevacizumab: A case report.

Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare but fatal cancer-related disease. Owing to its non-specific findings, aggressive course, and lack of established treatment guidelines, only a few cases of antemortem diagnosis in long-term survivors have been reported. We aimed to report a case of uterine cervical cancer induced PTTM that was suspected based on pulmonary hypertension and successfully treated using combination chemotherapy despite of delayed diagnose.

Pulmonary Sarcoidosis Presenting with Acute Respiratory Failure: A Report of a Case Diagnosed by Endobronchial Ultrasound-guided Transbronchial Needle Aspiration on Ventilation after Intubation.

Sarcoidosis is a multisystem granulomatous disease of unknown etiology and is pathologically characterized by non-caseating granulomas in the organs involved. We herein report a case of sarcoidosis in a Japanese woman with acute respiratory failure, diagnosed using endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) on the ventilator after intubation. Only a few cases of previously undiagnosed sarcoidosis presenting acute respiratory failure have been reported.