A Rare Case of Peripheral Pulmonary Artery Aneurysm and Cavitating Pneumonia in a Patient with COVID-19 Managed with an Endovascular Method.

Peripheral pulmonary artery aneurysm (PAA), being a rare condition, is considered extremely rare following coronavirus disease 2019 (COVID-19). We present a 58-year-old male who presented with fever, malaise, and dry cough. SARS-CoV-RNA transcription-mediated amplification test was positive for the patient. After 2 days, he developed hemoptysis and back pain, and a CT scan revealed a pulmonary aneurysm, evidence of alveolar hemorrhage, and Necrotizing pneumonia. He was scheduled for pulmonary artery angiography. The angiography confirmed a fusiform aneurysm and partial coiling of the aneurysmal sac, and indoor and backdoor embolization was performed. In the follow-up, a CT scan showed complete thrombosis of the aneurysmal sac, and the patient was free of symptoms. Peripheral PAAs can show a variety of symptoms. They can even be asymptomatic. The infectious pathologies of this condition are less common than the other. COVID-19 is an extremely rare pathology. To the best of our knowledge, this is the first case of necrotizing pneumonia and peripheral PPA in an adult. Moreover, it was followed by COVID-19. A vital takeaway note for physicians is to consider PAAs as a complication when treating COVID-19 patients who don't show signs of improvement or even show signs of exacerbation.

Hydrodissection: A Novel Approach for Safe Core Needle Biopsy of Small High-Risk Subcapsular Thyroid Nodules.

PURPOSE: To evaluate the safety and effectiveness of core needle biopsy (CNB) under the assistance of hydrodissection (HDS). MATERIALS AND METHODS: Of 2325 patients requiring biopsy of thyroid lesions, 21 high-risk patients with subcapsular nodules smaller than 10 mm were recruited into this study. All patients underwent HDS with 0.9% saline solution followed by ultrasound (US)-guided CNB with an 18-gauge semi-automated biopsy needle. The separation success rate (SSR) of the HDS, technical success rate (TSR) of CNB, histopathologic success rate (HSR), and complications were assessed. RESULTS: Both the SSR of HDS and TSR of CNB were 100% (21/21). The HSR of the thyroid nodules was 85.7% (18/21). No major complications were recorded. CONCLUSION: HDS before CNB can successfully lead to safe biopsy of small subcapsular thyroid nodules. LEVEL OF EVIDENCE: Level 4, Case Series.