Primary rectal lymphoma in childhood is rare. We report a case in a 10-year-old boy who presented with rectal bleeding and a single rectal polyp. Histologic examination, immunophenotyping and molecular genetic study of the polyp showed a diffuse B-cell lymphoma, Burkitt-like type. The literature on this topic is reviewed and pathologic examination of childhood rectal polyps is emphasized.
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http://dx.doi.org/10.1007/s10024-002-0046-5 | DOI Listing |
J Neuroendocrinol
January 2025
Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA.
Colonic neuroendocrine tumors (NETs), excluding rectal NETs, are often described as relatively common and aggressive, with inferior median survival compared with other gastrointestinal (GI) primary sites. However, epidemiological databases may conflate well-differentiated NETs with poorly differentiated neuroendocrine carcinomas (NECs), leading to a lack of precise data on the prevalence, clinical behavior, and prognosis of well-differentiated colonic NETs. We analyzed a large institutional database to identify patients with well-differentiated NETs originating in the colon, excluding rectal NETs.
View Article and Find Full Text PDFTher Adv Gastrointest Endosc
January 2025
Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Seoul 03722, Korea.
Background: Colonoscopic polypectomy significantly reduces the incidence of colorectal cancer, but it carries potential risks, with colonic perforation being the most common and associated with significant morbidity.
Objectives: This study evaluated the clinical outcomes and risk factors of microperforation during colonoscopic polypectomy.
Design: A retrospective cohort study.
J Clin Med
December 2024
Department of Surgery, Rabin Medical Center-Hasharon Hospital, Faculty of Medicine, Tel Aviv University, Petach Tikva 49100, Israel.
Transanal endoscopic microsurgery (TEM) is a minimally invasive approach for excising rectal polyps, particularly those with high-grade dysplasia (HGD) or early-stage rectal cancer (T1). This study aimed to evaluate the recurrence risk and its associated factors in patients treated with TEM for HGD and T1 rectal tumors. A retrospective review was conducted on 79 patients who underwent TEM for rectal lesions at Rabin Medical Center-Hasharon Hospital from 2005 to 2019.
View Article and Find Full Text PDFClin Genet
January 2025
Department of Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
An increasing number of autosomal recessive forms of adenomatous polyposis have been described, but some in very few cases. Here, we describe a rare case of biallelic germline pathogenic variants in the MLH3 gene, implicating it as a potential cause of early colorectal cancer. The patient, a 47-year-old woman, presented with rectal bleeding, leading to the discovery of a malignant rectal tumor and adenomas during colonoscopy.
View Article and Find Full Text PDFBJS Open
December 2024
Unit of Hereditary Digestive Tract Tumours, Fondazione IRCCS Istituto Nazionale dei Tumouri, Milan, Italy.
Background: Familial adenomatous polyposis is a cancer-predisposing syndrome caused by germline pathogenic variants of the adenomatous polyposis coli gene, leading to numerous colorectal polyps and a high risk of colorectal cancer. Desmoid tumours have become significant in the management of familial adenomatous polyposis after a colectomy, yet the exact incidence remains undetermined due to a lack of dedicated surveillance.
Methods: This retrospective study accessed data from the prospectively maintained Hereditary Digestive Tumours Registry from 2000 to 2023.
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