Oncocytic carcinoma of the parotid gland as a manifestation of Birt-Hogg-Dube syndrome.

Renal oncocytomas are commonly reported in association with Birt-Hogg-Dube (BHS) syndrome, while BHD-associated oncocytomas of the parotid gland are rare. To date, there have been only 11 cases of BHD-associated parotid gland oncocytoma, without a reported case of malignant transformation. We present the first reported case of oncocytic carcinoma of the parotid gland associated with BHD, with radiologic and histologic correlation.

Impact of marital status on survival in patients with stage 1A NSCLC.

Objectives: To study how marital status influences overall survival (OS) in patients with stage IA non-small cell lung cancer (NSCLC). And whether the result is valid in different time periods.

Materials And Methods: We retrospectively analyzed 55,207 cases of stage IA NSCLC from 1995 to 2015 in the Surveillance, Epidemiology, and End Results (SEER) database.

Association Between Anti-diabetic Agents and Clinical Outcomes of COVID-19 in Patients with Diabetes: A Systematic Review and Meta-Analysis.

Background And Aims: During the current Coronavirus Disease 2019 (COVID-19) pandemic, patients with diabetes face disproportionately more. This study was performed to clarify anti-inflammatory effects of anti-diabetic agents on COVID-19 in patients with diabetes.

Methods And Results: Relevant literature was searched on 15 databases up to November 14, 2020 and was updated on April 13, 2021.

Paraspinal Fat Stranding as an Unexpected Finding on Body Computed Tomography: A Key to Early Detection of Spinal Osteomyelitis.

Objective: At present, early detection of spinal osteomyelitis is a challenge. Patients may present with non-specific symptoms and diagnostic imaging studies may be obtained for seemingly unrelated complaints. Paraspinal fat stranding on body computed tomography (CT) as a sign of osteomyelitis is easily overlooked and has not been reported in the literature to our knowledge.

A Helpful Clue to Calciphylaxis: Subcutaneous Pseudoxanthoma Elasticum-like Changes.

Calciphylaxis, otherwise known as calcific uremic arteriolopathy, is an aggressive disease characterized by painful, ischemic skin lesions with histologic findings of microvascular calcification involving the fat. It is most commonly seen in patients with end-stage renal disease who are on dialysis. Early diagnosis is pivotal for optimal management.

Histologically benign metastasizing tenosynovial giant cell tumor mimicking metastatic malignancy: A case report and review of literature.

Diffuse-type tenosynovial giant cell tumor (D-TGCT), otherwise known as pigmented villonodular synovitis, is a locally aggressive tumor which can show multiple recurrences but is rarely associated with metastasis. A handful of studies have elucidated the imaging features and clinical course in metastatic D-TGCT with malignant transformation on histology. However, only 5 cases of metastatic D-TGCT with benign histological features have been reported in the literature, with the clinical course and prognosis reported in only 1 case.

Improved Image Quality of Low-Dose CT Pulmonary Angiograms.

Objective: The use of CT pulmonary angiography (CTPA) to evaluate for pulmonary embolism has been increasing, and carries a significant radiation dose. We evaluate image quality of lower-dose images, taking into account patient size as well as the effects of image postprocessing.

Methods: A total of 250 CTPAs were retrospectively reviewed.