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Connecting the dots: Low-grade appendiceal mucinous neoplasms and serrated polyps in the appendix.
Am 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.
Torsion of Low-Grade Appendiceal Mucinous Neoplasm (LAMN): A Case Report.
Cureus
December 2024
Department of Surgery, Kitakyushu City Yahata Hospital, Kitakyushu, JPN.
A low-grade appendiceal mucinous neoplasm (LAMN) is a rare condition, occurring in 0.08-4.1% of appendectomy cases.
View Article and Find Full Text PDFAn appendiceal mucocele associated with inverted epithelium and submucosal hyperplasia at the appendiceal root: a rare case report.
Nagoya J Med Sci
November 2024
Department of Pathology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya, Japan.
A 54-year-old woman was referred to our hospital because of abnormal colonoscopic findings, including a submucosal protuberance at the appendiceal root. A biopsy showed no malignant findings. Computed tomography revealed a 20-mm cystic lesion with thick walls at the appendiceal root, suggestive of an appendiceal mucocele.
View Article and Find Full Text PDFPerforated Meckel's Diverticulum in an Adult that Resembles Acute Appendicitis: A Case Report and Review of the Literature.
Curr Med Imaging
January 2025
Medical Imaging Department, King Abdullah Medical Complex, Jeddah, Saudi Arabia.
Background: Perforation is one of the rarest effects of Meckel's diverticulum and may clinically resemble acute appendicitis.
Case Report: A 34-year-old woman with pain in the right iliac fossa, nausea, and vomiting for three days was brought to the emergency department. An abdominal examination indicated rebound tenderness in the area of the right iliac fossa.
Protective effect of appendectomy against the onset of ulcerative colitis: A case-control study.
World J Gastrointest Surg
December 2024
Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China.
Background: Previous studies suggest that appendectomy has a protective effect against ulcerative colitis (UC); however, relatively few studies focusing on this topic have been reported in China.
Aim: To explore the correlation between appendectomy and the onset of UC.
Methods: A total of 313 patients with newly diagnosed UC and 313 healthy individuals were selected for this study.
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