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Morphometric evaluation and clinical correlations in pediatric malignant small round cell tumors
Cherry Bansal1, Archana Gupta2, Archana Kumar3
1Department of Pathology, Era's Medical College and Hospital, Lucknow, Uttar Pradesh, India.
Summary
Nuclear morphometry can help distinguish similar pediatric small round cell tumors. This technique offers a valuable diagnostic tool, especially in resource-limited settings, but requires further multicentric validation.
Area of Science:
- Pediatric Pathology
- Oncology
- Diagnostic Cytopathology
Background:
- Nuclear size in tumors correlates with DNA content, ploidy, and proliferation.
- Differentiating histomorphologically similar pediatric malignant small round cell tumors can be challenging.
Purpose of the Study:
- To evaluate the utility of nuclear morphometry in differentiating histomorphologically similar pediatric malignant small round cell tumors using hematoxylin and eosin stained sections.
- To assess the potential of this method for diagnostics in resource-poor settings.
Main Methods:
- Morphometric analysis was performed on 22 confirmed pediatric malignant round cell tumors.
- Tumor samples included retinoblastoma, neuroblastoma, Wilms tumor, rhabdomyosarcoma, malignant hemangiopericytoma, and non-Hodgkin lymphoma.
- Cell images were analyzed using Leica Q win 500 image software from six different areas per section.
Main Results:
- Nuclear measurements varied among tumor types and within retinoblastoma cases based on nerve involvement and metastasis.
- Neuroblastoma cases showed consistent mean nuclear area percentages.
- Wilms tumor cases with metastasis exhibited larger nuclear areas compared to non-metastatic ones.
Conclusions:
- Nuclear morphometry provides useful data for differentiating pediatric malignant round cell tumors.
- Further multicentric studies are needed to confirm and implement this diagnostic approach.
