Tomoaki Hamana

Suture granulomas developing after the treatment of oral squamous cell carcinoma

Highlights • A 64-year-old man underwent head and neck surgery for oral squamous cell carcinoma.• Multiple suture granulomas mimicking tumor recurrence developed in the radiation field.• The suture granulomas developed shortly after adjuvant chemoradiation therapy.• Suspect suture granulomas when nodules appear during postoperative radiotherapy.• Suture granulomas may show spontaneous resolution.

Primary Leiomyosarcoma of the Mandible

Abstract Leiomyosarcoma of the oral cavity is a rare malignant mesenchymal tumour: This report is of a 60-year-old woman with a leiomyosarcoma involving the mandible. Histologically, the tumour was composed of Spindleshaped cells with oval nuclei and eosinophilic cytoplasm, and atypical mitotic figures were detected. Immunoreactivity for desmin, vimentin, and a-smooth muscle actin was observed. The patient underwent wide surgical excision of the tumour No sign of tumour recurrence or distant metastasis was observed 29 months after the operation.