Gingival Metastasis as First Sign of Multiorgan Dissemination of Epithelioid Malignant Mesothelioma

Abstract

Metastatic malignant mesothelioma to the oral cavity is extremely rare. They are more common in the jaw bones than the soft tissue. Occurrence of the malignant disease typically carries an average survival rate of 9-12 months : Thirteen patients underwent neoadjuvant chemotherapy and radical pleurectomy decortication, followed by radiotherapy from August 2012 to September 2013. Patients were followed up with computed tomography of the chest and the abdomen every 3 months. All patients were followed up until February 2014. In January 2014, 11 patients were still alive with a median survival of 11 months, eight patients developed a recurrence and two patients died at 8 and 9 months after surgery. After 1 year from macroscopic radical pleurectomy decortication, a 68-year-old man suffered from gingival mass turned out to be a metastatic deposit of biphasic malignant mesothelioma as first sign of multiorgan recurrence. The patient underwent chemotherapy and local radiotherapy in the oral cavity. This case points out the relevance of biopsy to all new growing lesions, even in uncommon anatomical sites, whenever a history of mesothelioma is on record.