Hemamali Samaratunga
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View article: Biomarkers in Renal Cell Carcinoma: A Systematic Review and Immunohistochemical Validation Study
Biomarkers in Renal Cell Carcinoma: A Systematic Review and Immunohistochemical Validation Study Open
Background and Objectives: The worldwide incidence of renal cell carcinoma (RCC) rose by 22% between 2012 and 2022. In Australia, RCC accounted for 2.8% of all cancer diagnoses and contributing to 1.8% of cancer-related deaths. Identificat…
View article: Development and retrospective validation of an artificial intelligence system for diagnostic assessment of prostate biopsies: study protocol
Development and retrospective validation of an artificial intelligence system for diagnostic assessment of prostate biopsies: study protocol Open
Introduction Histopathological evaluation of prostate biopsies using the Gleason scoring system is critical for prostate cancer diagnosis and treatment selection. However, grading variability among pathologists can lead to inconsistent ass…
View article: The Role of Artificial Intelligence in the Evaluation of Prostate Pathology
The Role of Artificial Intelligence in the Evaluation of Prostate Pathology Open
Artificial intelligence (AI) is an emerging tool in diagnostic pathology, including prostate pathology. This review summarizes the possibilities offered by AI and also discusses the challenges and risks. AI has the potential to assist in t…
View article: Interobserver reproducibility of a hybrid three‐tier grading system of papillary nonmuscle invasive urothelial carcinoma: an international Uropathology study
Interobserver reproducibility of a hybrid three‐tier grading system of papillary nonmuscle invasive urothelial carcinoma: an international Uropathology study Open
Aims A hybrid‐three tier system with low grade (LG), high grade‐ G2 (HG‐G2), high grade‐ G3 (HG‐G3) has been proposed in recognition of, and to help address, the clinical heterogeneity within high grade WHO 2004/2022. We assessed interobse…
View article: Gleason scores provide more accurate prognostic information than grade groups
Gleason scores provide more accurate prognostic information than grade groups Open
Prostate cancer grade is currently often reported both by Gleason scores and by grouping of the scores into five so-called International Society of Urological Pathology (ISUP) grades (also known as grade groups). Using population-based reg…
View article: Prediction of biochemical recurrence after radical prostatectomy from primary tumour characteristics
Prediction of biochemical recurrence after radical prostatectomy from primary tumour characteristics Open
Objectives To construct and externally calibrate a predictive model for early biochemical recurrence (BCR) after radical prostatectomy (RP) incorporating clinical and modern imaging characteristics of the primary tumour. Patients and Metho…
View article: Study Protocol: Development and Retrospective Validation of an Artificial Intelligence System for Diagnostic Assessment of Prostate Biopsies
Study Protocol: Development and Retrospective Validation of an Artificial Intelligence System for Diagnostic Assessment of Prostate Biopsies Open
Histopathological evaluation of prostate biopsies using the Gleason scoring system is critical for prostate cancer diagnosis and treatment selection. However, grading variability among pathologists can lead to inconsistent assessments, ris…
View article: Prognosis of Gleason score 8 prostatic adenocarcinoma in needle biopsies: a nationwide population-based study
Prognosis of Gleason score 8 prostatic adenocarcinoma in needle biopsies: a nationwide population-based study Open
A 5-tier grouping of Gleason scores has recently been proposed. Studies have indicated prognostic heterogeneity within these groups. We assessed prostate cancer-specific mortality (PCSM) and all-cause mortality (ACM) for men diagnosed with…
View article: UrethroNAV: the aetiology and extent of idiopathic urethral stricture in an Australian population
UrethroNAV: the aetiology and extent of idiopathic urethral stricture in an Australian population Open
Findings suggest that an underlying cause of IUSD could be LS. Additionally, the pathophysiology may involve scarring and inflammation beyond the limits of the stricture with extension distal from the stricture site. Careful evaluation for…
View article: Gleason score 3+3=6 prostatic adenocarcinoma is not benign and the current debate is unhelpful to clinicians and patients
Gleason score 3+3=6 prostatic adenocarcinoma is not benign and the current debate is unhelpful to clinicians and patients Open
Prostate adenocarcinoma is a common malignancy associated with a significant morbidity and mortality. In both prostate biopsies and radical prostatectomy specimens Gleason scoring informs both treatment and outcome prediction. The current …
View article: Prognosis of Gleason Score 9–10 Prostatic Adenocarcinoma in Needle Biopsies: A Nationwide Population-based Study
Prognosis of Gleason Score 9–10 Prostatic Adenocarcinoma in Needle Biopsies: A Nationwide Population-based Study Open
Survival of prostate cancer patients with the highest tumor grades varies depending on grade composition.
View article: Web‐grading—a tool to test personal grading of renal and prostate cancer
Web‐grading—a tool to test personal grading of renal and prostate cancer Open
Only a few pathologists have the opportunity to verify their personal grading through objective assessment. This study introduces a web‐based grading platform to facilitate and validate the grading of renal cell carcinoma and prostate canc…
View article: International Society of Urological Pathology (ISUP) Consensus Conference on Current Issues in Bladder Cancer. Working Group 2
International Society of Urological Pathology (ISUP) Consensus Conference on Current Issues in Bladder Cancer. Working Group 2 Open
The 2022 International Society of Urological Pathology (ISUP) Consensus Conference on Urinary Bladder Cancer Working Group 2 was tasked to provide evidence-based proposals on the applications of grading in noninvasive urothelial carcinoma …
View article: Prediction of Prostate Cancer Biochemical and Clinical Recurrence Is Improved by IHC-Assisted Grading Using Appl1, Sortilin and Syndecan-1
Prediction of Prostate Cancer Biochemical and Clinical Recurrence Is Improved by IHC-Assisted Grading Using Appl1, Sortilin and Syndecan-1 Open
Gleason scoring is used within a five-tier risk stratification system to guide therapeutic decisions for patients with prostate cancer. This study aimed to compare the predictive performance of routine H&E or biomarker-assisted ISUP (Inter…
View article: Development and External Validation of a Novel Nomogram to Predict the Probability of Pelvic Lymph-node Metastases in Prostate Cancer Patients Using Magnetic Resonance Imaging and Molecular Imaging with Prostate-specific Membrane Antigen Positron Emission Tomography
Development and External Validation of a Novel Nomogram to Predict the Probability of Pelvic Lymph-node Metastases in Prostate Cancer Patients Using Magnetic Resonance Imaging and Molecular Imaging with Prostate-specific Membrane Antigen Positron Emission Tomography Open
We developed and validated the Amsterdam-Brisbane-Sydney nomogram for the prediction of prostate cancer spread to lymph nodes before surgery. This nomogram performs similar or superior to all presently available nomograms.
View article: Data from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Data from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Background: Knowledge of preanalytic conditions that biospecimens are subjected to is critically important because novel surgical procedures, tissue sampling, handling, and storage might affect biomarker expression or invalidate tissue sam…
View article: Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
View article: Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Supplementary Table 1 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
View article: Data from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Data from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Background: Knowledge of preanalytic conditions that biospecimens are subjected to is critically important because novel surgical procedures, tissue sampling, handling, and storage might affect biomarker expression or invalidate tissue sam…
View article: Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
View article: Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies Open
Supplementary Table 2 from Comparative Biomarker Expression and RNA Integrity in Biospecimens Derived from Radical Retropubic and Robot-Assisted Laparoscopic Prostatectomies
View article: Interobserver reproducibility of cribriform cancer in prostate needle biopsies and validation of International Society of Urological Pathology criteria
Interobserver reproducibility of cribriform cancer in prostate needle biopsies and validation of International Society of Urological Pathology criteria Open
Aims There is strong evidence that cribriform morphology indicates a worse prognosis of prostatic adenocarcinoma. Our aim was to investigate its interobserver reproducibility in prostate needle biopsies. Methods and results A panel of nine…