More than meets the eye: predicting adrenocortical carcinoma outcomes with pathomics

  • 0Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong, PR China.

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Summary

This summary is machine-generated.

Pathomics analysis of adrenal cortical carcinoma (ACC) provides a powerful new prognostic tool. A novel pathomics signature (PSACC) integrated into a nomogram significantly improves prediction accuracy for ACC patient outcomes.

Area Of Science

  • Oncology
  • Digital Pathology
  • Medical Imaging Analysis

Background

  • Adrenocortical carcinoma (ACC) is a rare, aggressive cancer with high recurrence and poor prognosis.
  • Existing prognostic models for ACC are insufficient, necessitating advanced diagnostic tools.
  • Pathomics, analyzing whole-slide images with algorithms, shows promise for improving ACC prognostication.

Purpose Of The Study

  • To develop and validate a pathomics-based signature for predicting adrenocortical carcinoma prognosis.
  • To assess the performance of a pathomics signature compared to conventional models.
  • To create a nomogram integrating pathomics for enhanced clinical decision-making in ACC.

Main Methods

  • Retrospective analysis of 159 patients undergoing radical adrenalectomy (2002-2019).
  • Development of a pathomics signature (PSACC) using LASSO-Cox regression on 5 pathomics features extracted via unsupervised segmentation.
  • Creation of a nomogram integrating PSACC and M stage.

Main Results

  • The PSACC demonstrated a strong correlation with ACC prognosis in both training (HR 3.380) and validation (HR 3.904) cohorts.
  • The pathomics-integrated nomogram significantly outperformed the conventional clinicopathological model in prediction accuracy.
  • Concordance indexes for the pathomics nomogram were 0.779 (training) and 0.752 (validation), versus 0.668 and 0.603 for the conventional model.

Conclusions

  • A pathomics-based nomogram offers a superior prognostic tool for adrenocortical carcinoma.
  • This approach enhances personalized clinical decision-making and treatment strategies.
  • Pathomics holds significant potential for refining prognostic models in complex malignancies.