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Understanding pediatric cervicofacial non-tuberculous mycobacterial infection.

JAAPA

January 2025

Eunice Im is a student in the College of Human Medicine at Michigan State University in Grand Rapids, Mich. Erin Gawel is a student in the Jacobs School of Medicine and Biomedical Sciences at the University at Buffalo in Buffalo, N.Y. Alyson Coppola practices at the University at Buffalo Otolaryngology in Williamsville, N.Y. Michele Carr is a professor in the Jacobs School of Medicine and Biomedical Sciences at the University at Buffalo. The authors have disclosed no potential conflicts of interest, financial or otherwise.

Cervicofacial non-tuberculous mycobacterial infection should be a part of the differential diagnosis for immunocompetent children ages 1 to 5 years who present with painless submandibular or preauricular lymphadenopathy. Although a benign and self-limiting disease, patients can develop a chronically draining fistula if not diagnosed and treated promptly. The diagnostic process can be managed with a combination of microbiological studies, cytology, laboratory tests, and imaging studies.

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Background: Nasal defects after skin cancer excision can often be healed by second intention in certain circumstances.

Objective: We aim to demonstrate the utility of bovine collagen xenografts in supplementing second-intention healing of a variety of nose surgical defects.

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High-Throughput Dissociation and Orthotopic Implantation of Breast Cancer Patient-Derived Xenografts.

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Patient-derived xenografts (PDXs) provide a clinically relevant method for recapitulating tumor-involved cell types and the tumor microenvironment, which is essential for advancing knowledge of breast cancer (BC). Additionally, PDX models enable the study of BC systemic effects, which is not possible using in vitro models. Traditional methods for implanting BC xenografts typically involve anesthesia and sterile surgical procedures, which are time-consuming, invasive, and limit the scalability of PDX models in BC research.

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Application of Robot-assisted Pancreaticobiliary Junction Resection in Benign Duodenal Tumors.

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Robot-assisted pancreaticobiliary junction resection is a surgical technique employed to treat benign duodenal tumors. The procedure involves several key steps: making a longitudinal incision in the duodenum, excising the tumor at the pancreaticobiliary junction, inserting a biliary stent, connecting the biliary and duodenal mucosa, and suturing the duodenal incision during phase I. The robotic system enhances visibility, facilitates precise operations, minimizes duodenal traction injuries to the duodenum and surgical trauma, ensures accurate suture and fixation of bile duct stents, connects the bile duct and duodenal mucosa and reduces postoperative recovery time.

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Aim: Complete mesocolic excision (CME) is an oncologically driven technique for treating right colon cancer. While laparoscopic CME is technically demanding and has been associated with more complications, the robotic approach might reduce morbidity. The aim of this study was to assess the safety of stepwise implementation of robotic CME.

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