Publications by authors named "Klaudia M Nowak"

Aims: Oesophageal adenocarcinoma (EAC) is a glandular or mucinous epithelial malignancy that can show immunohistochemical evidence of neuroendocrine differentiation (NED) and express the hormone serotonin. The objective of this study was to correlate the presence of NED and serotonin with clinicopathological characteristics and patient outcome after neoadjuvant chemoradiation.

Methods And Results: A retrospective cohort of patients treated between 2002 and 2021 was established and included 218 oesophagectomy specimens with residual tumour.

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  • A weakly supervised AI model called Triagnexia Colorectal was created to detect abnormal colorectal histology, like dysplasia and cancer, and prioritize biopsies based on clinical importance.
  • The model was trained on nearly 25,000 digitized images and evaluated by multiple pathologists, offering a user-friendly interface to enhance decision-making in digital pathology.
  • Validation results show high accuracy for the AI model, with impressive specificity and sensitivity scores, which pathologists found beneficial for detecting and prioritizing abnormal colorectal cases.
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Tumours of the gastrointestinal tract represent nearly a quarter of all newly diagnosed tumours diagnosed in 2019. Various treatment modalities for gastrointestinal cancers exist, some of which may be guided by biomarkers. Biomarkers act as gauges of either normal or pathogenic processes or responses to an exposure or intervention.

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The partner and localiser of BRCA2 (PALB2) gene, located on chromosome 16, functions as a tumour suppressor that plays a critical role in homologous recombination repair after DNA double-strand breaks. It encodes proteins involved in the BRCA2 and BRCA1, and RAD51 pathways. Heterozygous germline mutations in PALB2 have been implicated in the development of breast, pancreatic and ovarian cancers.

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The SWItch Sucrose non-fermentable (SWI/SNF) complex is a large, multi-subunit ATP-dependent nucleosome remodeling complex that acts as a tumor suppressor by modulating transcription. Mutations of SWI/SNF subunits have been described in relation to developmental disorders, hereditary SWI/SNF deficiency syndromes, as well as malignancies. In this review we summarize the current literature in regards to SWI/SNF-deficient tumors of the luminal gastrointestinal tract (GIT) and pancreas.

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  • The study looked at two types of pancreatic cancer: one with DNA mistakes (MMRD) and one without (MMRP).
  • Out of over 1,200 patients, only a few had MMRD, but those who did seemed to live longer after surgery.
  • MMRD cancers had different gene changes compared to normal pancreatic cancers and showed more signs of being able to trigger the immune system, which might help in finding better treatments.
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Aim: Hernia sacs with pathological evaluation over a 19-year period were analysed with regards to pathological diagnoses, full costing and the impact on patient management.

Materials And Methods: The database of the Department of Pathology were searched over the study period (2001 to 2019 inclusive) for hernia sacs. The total cost of complete pathology examination was calculated on average numbers and rates of pay that existed over the study period.

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Drawing upon 28 court files of the District Court in Poznań and 30 post-mortem protocols--from the Department of Forensic Medicine at Poznań Medical Academy. This article tackles the issue of infanticide in the period from 1990 to 2000. The aim of this paper was to find answers to the following questions: what was the social background and mental state of female offenders? How was infanticide committed? In order to solve certain research problems, a document examination technique was employed to analyse the contents of the documents available.

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