Why the study?
Low grade fibromyxoid sarcoma (LGFMS) rarely affects the head and neck, and the incidence, causes, and risk factors for laryngeal LGFMS have not been clarified.
This case highlights the importance of monitoring for rare radiotherapy-related complications, such as low grade fibromyxoid sarcoma, in patients with a history of radiation therapy for head and neck cancers.
Low grade fibromyxoid sarcoma (LGFMS) is an uncommon variant of fibrosarcoma with high risk of local recurrence, immense metastatic potential and frequently protracted period between tumour presentation and metastasis. This unusual malignancy rarely affects the region of the head and neck which makes cases of laryngeal LGFMS extremely infrequent. To date, LGFMS of the larynx has been scatteredly mentioned in the literature. Neither incidence nor causes and risk factors for laryngeal LGFMS have been clarified so far. To the authors' knowledge, this is the first case report that discusses the clinical course, imaging diagnosis, histopathological evaluation and surgical approach to radiation-induced laryngeal LGFMS.We present a case of a 70-year-old man who developed a LGFMS after previous radiotherapy (RT) for squamous cell carcinoma (SCC) of the larynx. The latency period between the time of radiation exposure and the diagnosis of LGFMS was twenty-seven months. After re-confirming the diagnosis with second biopsy and extensive imaging evaluation the patient was subjected to an open partial resection of the larynx. Owing to the rarity of the tumour, there is no established protocol with follow-up recommendations.This case highlights the importance of considering the RT history of the patient in order to monitor radiotherapy-related complications, including the occurrence of LGFMS.
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Chivchibashi et al. (2021) studied this question.
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