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Related Experiment Video

Updated: Jan 20, 2026

Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion
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Understanding the Efficiency of Splenic Hemangiosarcoma Diagnosis Using Monte Carlo Simulations.

Eric J Herman1, Adam W Stern2, Richard J Fox3

  • 1BluePearl Veterinary Partners, Gainesville, FL, USA.

Veterinary Pathology
|August 20, 2019
PubMed
Summary

Diagnosing canine hemangiosarcoma in spleens is challenging. Examining five histopathologic sections provides a 95% chance of accurate diagnosis, aiding veterinarians in timely detection.

Keywords:
Monte Carlo methoddogshemangiosarcomapathologysensitivityspleen

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Area of Science:

  • Veterinary Pathology
  • Canine Oncology
  • Surgical Pathology

Background:

  • Canine hemangiosarcoma is a prevalent splenic tumor in older dogs.
  • Diagnosis is often complicated by splenic necrosis and hemorrhage, mimicking benign conditions.
  • There is no established guideline on the number of histopathologic sections required for definitive diagnosis.

Purpose of the Study:

  • To determine the optimal number of histopathologic sections needed to reliably diagnose canine splenic hemangiosarcoma.
  • To provide evidence-based recommendations for diagnostic protocols in veterinary surgical pathology.

Main Methods:

  • Analysis of 413 histopathologic sections from 50 confirmed canine hemangiosarcoma cases.
  • Expert review by two board-certified veterinary pathologists to confirm hemangiosarcoma presence/absence per section.
  • 10,000 Monte Carlo simulations averaging random section selections per case to assess diagnostic yield.

Main Results:

  • Examination of 5 sections yielded a 95.02% probability of diagnosing hemangiosarcoma when present.
  • Increasing examination to 10 sections improved the diagnostic probability to 98.59%.
  • Simulations indicate a high diagnostic yield even with a limited number of sections.

Conclusions:

  • Five histopathologic sections are likely sufficient for diagnosing canine splenic hemangiosarcoma.
  • The study underscores the importance of submitting the entire spleen for comprehensive histopathologic evaluation.
  • Findings support the development of standardized diagnostic guidelines for veterinary pathologists.