CT Texture Analysis of Adrenal Pheochromocytomas: A Pilot Study

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Pheochromocytomas (PCCs) are rare neuroendocrine tumors requiring accurate characterization.
• CT texture analysis, a radiomics technique, offers quantitative insights into tissue heterogeneity.

Purpose of the Study:

• To investigate the utility of CT texture analysis in characterizing adrenal pheochromocytomas.
• To correlate radiomic features with secretory patterns and histopathological data.

Main Methods:

• Retrospective analysis of 17 surgically removed PCCs.
• Contrast-enhanced CT imaging and comprehensive endocrine evaluation.
• Extraction of 58 texture parameters using LifeX software across multiple CT phases.

Main Results:

• Specific texture parameters in unenhanced and venous phases differentiated secreting PCCs (p < 0.01).
• Texture features also distinguished tumors with low and high Pheochromocytoma Adrenal Gland Scaled Score (PASS).

Conclusions:

• CT texture analysis is a valuable tool for early identification of secreting or malignant adrenal PCCs.
• Radiomics can enhance diagnostic capabilities beyond conventional imaging.