Histopathologic Feature of Hyalinization Predicts Recurrence of Conventional/Solid Multicystic Ameloblastomas

Area of Science:

• Oral Pathology
• Surgical Pathology
• Oncology

Background:

• Solid multicystic ameloblastoma (SMA) is a benign but locally destructive jaw lesion.
• Histological features, such as hyalinization, can influence tumor behavior.
• Understanding factors predicting SMA recurrence is crucial for patient management.

Purpose of the Study:

• To investigate the correlation between the severity of hyalinization (SOH) and the recurrence potential of SMAs.
• To analyze other clinical and histological parameters for their association with SMA recurrence.

Main Methods:

• Retrospective analysis of formalin-fixed, paraffin-embedded (FFPE) archival cases of SMA (follicular and plexiform types).
• Histological evaluation of SOH, scored from 0-3.
• Statistical analysis of SOH, histological type, and clinical parameters (location, radiolucency, root resorption) against recurrence.

Main Results:

• A significant positive correlation was found between SOH and SMA recurrence (p = 0.001).
• Histological type did not significantly impact the recurrence rate.
• Mandibular body location (p = 0.036), multilocular radiolucency (p = 0.001), and root resorption (p = 0.002) were significantly associated with recurrence.

Conclusions:

• The severity of hyalinization is a strong predictor of recurrence in solid multicystic ameloblastoma.
• Hyalinization's correlation with biological behavior highlights its importance in SMA prognosis.
• Further research is needed to validate hyalinization findings and elucidate the origin of hyalinized material.