Advances in Gastric Carcinogenesis Related to Helicobacter Pylori.

Helicobacter pylori (H. pylori), a Gram-negative bacterium, has been classified as a Group I carcinogen by the World Health Organization. It represents the most significant modifiable risk factor for gastric cancer (GC), particularly the intestinal subtype.

Variability of Sentinel Lymph Node Location in Patients with Trunk Melanoma.

(1) Background: Melanoma is one of the most aggressive types of neoplasia, and the management of this pathology requires a correct staging, as well as a personalized modern oncological treatment. The main objective of the study is to determine the variability of the lymphatic drainage for patients with melanomas located on the trunk and, secondarily, to determine the features of individuals who underwent sentinel lymph node biopsy (SLNB) depending on the exact location on the trunk. (2) Methods: This retrospective, observational, single-center study included 62 cases of trunk melanoma operated between July 2019 and March 2023, in which SLNB was performed and a total of 84 lymph nodes were excised.