Primary Melanoma of the Palatine Tonsil in an Adult Filipino Patient: A Case Report

ABSTRACT Objectives: To discuss a case of primary melanoma of the palatine tonsil in a 57-year-old man presented with a dark, pigmented tonsillar mass initially managed as a case of arterio-venous malformation, and review the literature on its presentation, diagnosis, management and outcomes. Methods: Design: Case Report Setting: Tertiary Government Training Hospital Patient: One Results: A 57-year-old man presented with a pigmented, bluish-black mass (7.2 cm) on the right tonsillar area with dysphagia and odynophagia. A CT scan interpretation considered large tonsillar malignancy, right with infiltrations of the soft palate, lingual tonsils and pre-epiglottic space. The initial impression was an arteriovenous malformation and preoperative arterial embolization was followed by a tonsillectomy. The final biopsy result was mucosal melanoma. Refusing further treatment, he expired nine months later in the emergency room, after presenting with decreasing sensorium and desaturations, jaundice and abdominal distension. Conclusion: To the best of our knowledge, this is the first reported case of tonsillar melanoma in the Philippines. Primary tonsillar melanoma is rare but its diagnosis is still possible (although it is usually diagnosed in advanced stages). Despite improvement in surgical techniques and adjuvant therapies, its prognosis remains poor. Regular oral cavity screening may help in early detection.