[A Warthin's tumor showing extensive necrosis].

Area of Science:

• Pathology
• Oncology
• Head and Neck Surgery

Background:

• Warthin's tumors are benign salivary gland neoplasms, commonly found in the parotid gland.
• Typical histopathological features include cystic spaces, papillary projections, and a surrounding lymphoid stroma.
• Diagnostic challenges arise when these characteristic features are obscured by reactive changes.

Observation:

• A case of Warthin's tumor in the right parotid gland presented with extensive necrosis, squamous metaplasia, and xanthomatous inflammation.
• Initial sampling revealed no characteristic features, leading to suspicion of a destroyed fistula.
• Subsequent sampling demonstrated the definitive diagnostic structures of Warthin's tumor.

Findings:

• The extensive reactive changes mimicked other pathologies, complicating the initial histopathological diagnosis.
• Additional tissue sampling was essential to identify the diagnostic features of Warthin's tumor.
• The final diagnosis confirmed a benign Warthin's tumor, excluding malignancy.

Implications:

• Awareness of morphological variations in Warthin's tumors is critical for accurate diagnosis.
• Increased sampling in challenging cases can prevent misinterpretation and ensure correct patient management.
• This case highlights the importance of thorough histopathological examination in salivary gland tumors.