Complications following biopsy of an intraabdominal or retroperitoneal mass compared with a renal mass.

Introduction: This study aimed to assess the short-term complication rate after US-guided core needle biopsies with an 18-gauge needle of retroperitoneal or intraabdominal masses (non-kidney group) compared with complications after biopsy from a renal mass (kidney group).

Methods: This was a retrospective analysis of 330 consecutive patients in the non-kidney group and 330 control patients in the kidney group. We recorded baseline characteristics, diagnostic yield, complications graded as Clavien-Dindo (CD) and readmissions within one and seven days.

Fine needle and core needle ultrasound guided biopsies for assessing suspected melanoma metastasis in lymph nodes and subcutaneous tissue.

Background And Objective: The aim of this study was to investigate the diagnostic accuracy of ultrasound guided fine needle aspiration cytology (FNAC) and core needle biopsy (CNB) in different clinical scenarios for melanoma patients with lesions suspected of metastasis.

Methods: We included all patients at our department attending follow-up after surgery for cutaneous melanoma, who had undergone either FNAC or CNB between December 2016 and June 2019. Biopsy results were classified into one of four categories and verified with follow-up including imaging, re-biopsy or histology upon excision.

Observer variability in a phase II trial - assessing consistency in RECIST application.

Objective: To assess the consistency of Response Evaluation Criteria in Solid Tumours (RECIST) application in a phase II trial.

Material And Methods: Patients with metastatic non-resectable colorectal cancer treated with a combination of an antibody and a chemotherapeutic drug, were included. Computed tomography (CT) scans (thorax, abdomen and pelvis) were performed at baseline and after every fourth treatment cycle.