Results 111 to 120 of about 46,287 (264)

Human papilloma virus infection and mismatch repair protein expression in sebaceous neoplasms of the genital area

open access: yesHistopathology, EarlyView.
This study establishes the role of high‐risk HPV infection in cutaneous sebaceous carcinoma of the genital area. An intraepithelial component in a subset of cases poses a challenge to distinguish the entity from squamous cell carcinoma in situ. Rarely, sebaceous neoplasia of the genital area is associated with Muir–Torre syndrome. Aims This study aimed
Katharina Wiedemeyer   +5 more
wiley   +1 more source

Aberrant PRDM2 methylation as an early event in serrated lesions destined to evolve into microsatellite‐instable colorectal cancers

open access: yesThe Journal of Pathology: Clinical Research
Up to 30% of colorectal cancers (CRCs) develop from sessile serrated lesions (SSLs). Within the serrated neoplasia pathway, at least two principally distinct oncogenetic routes exist generating microsatellite‐stable and microsatellite‐instable CRCs ...
David EFWM vanToledo   +10 more
doaj   +1 more source

DNA repair: Disorders [PDF]

open access: yes, 2010
No description ...
Bose   +36 more
core   +1 more source

No Evidence of Microsatellite Instability in Head and Neck Squamous Cell Carcinoma of Non‐Smokers and Non‐Drinkers

open access: yesJournal of Oral Pathology &Medicine, EarlyView.
ABSTRACT Introduction While the prevalence of microsatellite instability (MSI) is low in the whole head and neck squamous cell carcinoma (HNSCC) population, it has been suggested to be more prominent in tumors of non‐smokers. Therefore, the goal of this study was to determine the presence of MSI in a cohort of well‐defined HNSCC of non‐smokers and non ...
F. J. Mulder   +7 more
wiley   +1 more source

Endoscopic features of deficient mismatch repair/microsatellite instability‐high and BRAF‐mutated colorectal cancer

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
Abstract Objective Recent advancements in genome analyses, including the BRAF gene and mismatch repair (MMR) gene/microsatellite instability (MSI), have revealed the biological diversity of colorectal cancer (CRC). BRAF‐mutated CRC has a poor prognosis; however, cases exhibiting deficient MMR (dMMR)/MSI‐high (MSI‐H) and BRAF gene mutations have ...
Rika Omote   +7 more
wiley   +1 more source

Natural History of Duodenal Adenoma: An 11‐year Follow‐up

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Early detection and treatment are essential to decrease the mortality rate of duodenal cancer (DC). However, the natural history of DC remains unclear. A 78‐year‐old woman underwent screening esophagogastroduodenoscopy (EGD) before surgery for advanced colon cancer.
Hikaru Kuribara   +8 more
wiley   +1 more source

Evaluation of expression of mismatch repair gene MLH1 and levels of oxidative DNA damage in normal and neoplastic tissues of patients with colorectal cancer [PDF]

open access: yes, 2009
The oxidative DNA damage caused by oxygen free radicals is one of the most important mechanisms responsible for the initial steps of colorectal carcinogenesis.
Bartchewsky Júnior, Waldemar   +6 more
core   +4 more sources

Endoscopic Complete Response to Zolbetuximab for Advanced Gastric Cancer With Claudin 18.2 Positive: A Case Report

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Recently, zolbetuximab combined with chemotherapy has been approved as a first‐line treatment for advanced gastric cancer (GC). However, to date, no endoscopic images demonstrating endoscopic complete response (eCR) to zolbetuximab plus chemotherapy have been reported.
Akinori Sasaki   +6 more
wiley   +1 more source

Clinicopathological Characteristics With the Status of Mismatch Repair Deficient Invasive Colorectal Cancer With Spontaneous Regression

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Spontaneous regression of endoscopically invasive colorectal cancer (CRC) after biopsy has been rarely reported. We report three cases of endoscopically invasive CRC with spontaneous regression after biopsy and a review of the literature regarding spontaneous regression of CRC with somatic mismatch repair deficiency (MMR‐d).
Fumiya Okano   +8 more
wiley   +1 more source

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