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http://dx.doi.org/10.1007/s12029-015-9718-z | DOI Listing |
Dig Endosc
January 2025
Department of Gastroenterology, Faculty of Medicine, Shimane University, Shimane, Japan.
Chronic Helicobacter pylori (Hp) infection is the largest etiological factor for gastric cancer, but in recent years the reports of Hp-naïve gastric neoplasms (HpNGNs) have increased as the Hp-infected population in Japan has been declining. The histopathologic spectrum of HpNGNs differs significantly from that of conventional Hp-infected gastric neoplasms. Molecularly, the former harbor considerably fewer genetic and epigenetic abnormalities, reflecting the absence of chronic inflammatory conditions in the gastric mucosa.
View Article and Find Full Text PDFJ Community Hosp Intern Med Perspect
November 2024
MedStar Health Internal Medicine Residency Program, Baltimore, MD, USA.
Gastric Linitis plastica is characterized by extensive infiltration of gastric wall by poorly differentiated tumor cells, creating a "leather-bottle stomach" appearance. We describe a case involving a 71-year-old male presenting with globus sensation, early satiety and weight loss. Recent EGD had revealed chronic gastritis with polypoid mucosa at the GE junction, and subsequent FDG-PET indicated asymmetric FDG localization.
View Article and Find Full Text PDFGastric Cancer
January 2025
Division of Pathology, Shizuoka Cancer Center, Shizuoka, Japan.
CTNNA1 codes α-1 catenin, a molecule that functions in intercellular adhesion in combination with E-cadherin (coded by CDH1). A germline pathogenic variant (GPV) of CTNNA1 increases the risk of hereditary diffuse gastric cancer (HDGC); however, this GPV has not been reported in Japan. A 35-year-old Japanese man with an advanced gastric cancer underwent comprehensive genome profiling (CGP), which led to the detection of a CTNNA1 GPV (p.
View Article and Find Full Text PDFCureus
December 2024
Internal Medicine, Hurley Medical Center, Flint, USA.
Microangiopathic hemolytic anemia (MAHA) is a condition characterized by intravascular fragmentation of red blood cells, leading to the characteristic finding of schistocytes on a peripheral blood smear. The differential diagnoses of MAHA include thrombotic thrombocytopenic purpura (TTP), hemolytic-uremic syndrome (HUS), disseminated intravascular coagulation (DIC), idiopathic thrombocytopenic purpura (ITP), infections, malignancies, and solid organ transplantation. The commonly associated malignancies with MAHA are gastric, breast, prostate, lung, and lymphoma.
View Article and Find Full Text PDFAm J Clin Pathol
January 2025
Department of Pathology, Immunology, and Laboratory Medicine, University of Florida College of Medicine, Gainesville, FL, United States.
Objective: This study aimed to examine the relationship between low-grade appendiceal mucinous neoplasms (LAMNs) and serrated polyps (SPs) of the appendix, both characterized by KRAS mutations and overlapping morphologic features.
Methods: We analyzed 27 cases of LAMN and 24 cases of SP from archival records, reviewed pathology, and performed molecular analysis on select cases. Four cases initially diagnosed as LAMN were excluded for not meeting diagnostic criteria, and 1 SP case was reclassified as LAMN.
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