Endometrial hyperplasia/adenocarcinoma. a conventional approach

Area of Science:

• Gynecologic Pathology
• Oncology
• Histopathology

Background:

• Endometrial hyperplasia involves irregular gland proliferation.
• Accurate classification is vital for identifying precancerous lesions.
• Distinguishing hyperplasia from adenocarcinoma is clinically significant.

Purpose of the Study:

• To outline the World Health Organization (WHO) classification of endometrial hyperplasia.
• To emphasize the importance of cytologic atypia in classification.
• To detail diagnostic criteria for well-differentiated endometrial adenocarcinoma.

Main Methods:

• Utilizing the World Health Organization (WHO) classification system.
• Focusing on cytologic atypia as the primary classification criterion.
• Applying strict morphologic criteria for differential diagnosis.

Main Results:

• The WHO classification divides hyperplasia into categories based on atypia and glandular crowding.
• Well-differentiated adenocarcinoma diagnosis relies on specific patterns: confluent glands, papillary structures, or desmoplasia.
• Morphologic criteria effectively separate hyperplasia from adenocarcinoma.

Conclusions:

• The WHO classification provides clinically meaningful categories for endometrial hyperplasia.
• Strict adherence to morphologic criteria ensures accurate differentiation from well-differentiated adenocarcinoma.
• Precise diagnosis of endometrial hyperplasia is essential for patient management and prognosis.