Targeted Genomic Profiling Reveals Recurrent KRAS Mutations in Mesonephric-like Adenocarcinomas of the Female Genital Tract

Mesonephric adenocarcinoma most commonly arises in the cervix and is presumed to be derived from normal or hyperplastic mesonephric remnants. It is characterized by recurrent KRAS mutations and lack of PIK3CA/PTEN alterations. Adenocarcinomas of the uterine corpus and ovary characterized by morphologic and immunophenotypic similarities to mesonephric adenocarcinoma have been reported. The pathogenesis of these tumors, which have been designated “mesonephric-like adenocarcinomas” is unknown, and it has been debated whether these represent mesonephric adenocarcinomas that arise in the endometrium/ovary or endometrioid adenocarcinomas that closely mimic mesonephric adenocarcinoma. The relationship at the molecular level between mesonephric adenocarcinomas and mesonephric-like adenocarcinomas is unknown. The aim of this study was to examine the molecular alterations in mesonephric-like adenocarcinomas to identify driver mutations and potential therapeutically targetable mutations, and to determine the relationship between mesonephric-like adenocarcinomas and mesonephric adenocarcinomas using targeted next-generation sequencing. Seven mesonephric-like adenocarcinomas (4 ovarian, 3 uterine corpus) underwent targeted next-generation sequencing to detect mutations, copy number variations and structural variants in exonic regions of 300 cancer genes, and 113 selected intronic regions across 35 genes. All 7 tumors (100%) harbored canonical activating KRAS mutations (4 G12D,...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research

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Publication date: Available online 3 June 2020Source: Journal of the American College of RadiologyAuthor(s): Ruth C. Carlos, Katy Lowry, Gelareh Sadigh
Source: Journal of the American College of Radiology - Category: Radiology Source Type: research
Conclusion. The proposed nomogram obtained more precision prognostic prediction for patients with initially-diagnosed primary spinal and pelvic tumors. Level of Evidence: 3
Source: Spine - Category: Orthopaedics Tags: HEALTH SERVICES RESEARCH Source Type: research
Study Design.. A meta-analysis. Objective.. The goal of this study was to accurately evaluate the risk ratio (RR) of recurrence in chordoma patients with wide margin after removing the tumors using surgery, compared with inadequate margin (intralesional or marginal). Summary of Background Data.. As a rare malignant bone cancer, the more effective treatment for sacral chordoma is still surgical resection. However, there is no convincing evidence and risk ratio about sacral chordoma patients would be benefit from which kind of surgical margin. Methods.. We searched the PubMed, Cochrane Library, Web of Science, and...
Source: Spine - Category: Orthopaedics Tags: LITERATURE REVIEW Source Type: research
Conclusion. Patients with positive surgical margins benefit from adjuvant RT. Optimal OS is associated with adjuvant RT administered with advanced techniques and cumulative dose more than 65 Gy. Level of Evidence: 4
Source: Spine - Category: Orthopaedics Tags: SURGERY Source Type: research
Authors: Carkic J, Nikolic N, Nisevic J, Lazarevic M, Kuzmanovic-Pficer J, Jelovac D, Milasin J Abstract Oral carcinoma is the sixth most common malignancy worldwide, with survival rates of approximately 50%. The major type of oral cancer, present in 90% of the cases, is oral squamous cell carcinoma (OSCC). The genetic background predisposing an individual to OSCC is complex and largely unknown. Studies have suggested that endothelial nitric oxide synthase (eNOS) gene polymorphisms modulate the cancer risk, prompting us to assess the impact of three functional eNOS gene polymorphisms on OSCC risk. The present study...
Source: Journal of oral science - Category: Dentistry Tags: J Oral Sci Source Type: research
Publication date: Available online 5 June 2020Source: Best Practice &Research Clinical Obstetrics &GynaecologyAuthor(s): Olivier Donnez, Jacques Donnez
Source: Best Practice and Research Clinical Obstetrics and Gynaecology - Category: OBGYN Source Type: research
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Source: Current Opinion in Clinical Nutrition and Metabolic Care - Category: Nutrition Tags: GENES AND CELL METABOLISM: Edited by Anastasia Z. Kalea and Dorothy Klimis-Zacas Source Type: research
Publication date: Available online 5 June 2020Source: Journal of the Formosan Medical AssociationAuthor(s): Po-Ting Lin, Wei Teng, Wen-Juei Jeng, Chun-Yen Lin
Source: Journal of the Formosan Medical Association - Category: General Medicine Source Type: research
Conclusion: Both ESTD and ESD are safe and effective therapies for early-stage esophageal cancer wider than or equal to one half the esophageal circumference. The dissection speed of ESTD is faster than that of ESD.
Source: Journal of Clinical Gastroenterology - Category: Gastroenterology Tags: ALIMENTARY TRACT: Original Articles Source Type: research
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Source: Diseases of the Colon and Rectum - Category: Gastroenterology Tags: Technical Note Source Type: research
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