Percutaneous kidney biopsy trends in the Medicare population by specialty from 2011 to 2021: implications for nephrology training requirements and radiology referral patterns.

Purpose: To study trends in volume and reimbursement for percutaneous kidney biopsy (PKB) by physicians and advanced practice providers (APPs) for Medicare enrollees from 2011-2021.

Methods: Claims from the Medicare Part B Physician/Supplier Procedure Master File (a national Medicare database) for 2011-2021 were extracted using Current Procedural Terminology codes for PKB. Total volumes were compared by provider specialty.

Percutaneous ablation versus surgical ablation and resection of liver tumors: medicare volume and physician reimbursement trends from 2010 to 2018.

Purpose: The purpose of this study is to analyze trends in Medicare volume and physician reimbursement for percutaneous ablation, surgical ablation, and resection of liver tumors from 2010 to 2018.

Methods: Claims from the Medicare Part B PSPSMF for the years 2010 to 2018 were extracted using the CPT codes for percutaneous and surgical ablation of liver tumors and surgical liver resection. Total procedural volume and physician payment were analyzed by procedure and physician specialty.

Hematolymphoid neoplasms are common in bone marrow biopsies performed for non-specific, diffuse marrow signal alterations on magnetic resonance imaging.

Aims: MRI is an imaging modality used for a wide range of clinical indications. Occasionally, non-specific, diffuse T1 marrow signal alterations are identified, which may prompt a bone marrow biopsy (BM). However, there is little data on the clinicopathologic significance of this signal alteration.