Hurthle Cell Lesion: Controversies, Challenges, and Debates.

Area of Science:

• Endocrinology
• Pathology
• Oncology

Background:

• Hurthle cell lesions are diagnostically challenging entities.
• Interchangeable use of terms like oncocytic, oxyphilic, Hurthle, and Ashkanazy cells causes confusion.
• Uncertainty exists regarding the cell of origin and diagnostic criteria.

Purpose of the Study:

• To clarify the clinico-pathological aspects of Hurthle cell lesions.
• To define diagnostic criteria and understand the cell of origin.
• To differentiate benign from malignant lesions and guide management.

Main Methods:

• Literature review of clinico-pathological entities.
• Analysis of diagnostic criteria and terminology.
• Discussion of differential diagnosis and clinical behavior.

Main Results:

• The review addresses the nomenclature, cell of origin, and diagnostic thresholds for Hurthle cell lesions.
• It explores the possibility of differentiating hyperplastic from neoplastic and benign from malignant lesions.
• Classification within follicular or papillary neoplasms versus separate categorization is discussed.

Conclusions:

• Further research is needed to resolve diagnostic uncertainties surrounding Hurthle cell lesions.
• Standardized criteria and clear classification are essential for accurate diagnosis and patient management.
• Understanding the clinical behavior and predicting outcomes remain key challenges.