Carcinosarcoma of the Hypopharynx—A Rare Entity with Unique Surgical Procedure

Background: Carcinosarcoma of hypopharynx is a rare neoplasm with both malignant epithelial and mesenchymal components. They are highly aggressive in nature with controversial histogenesis. To our knowledge, there is no case reported of carcinosarcoma of hypopharynx managed with wide LASER excision and modified radical neck dissection followed by chemoradiation. Method and Result: 42-year-old male presented complaints of foreign body sensation in throat, and difficulty in swallowing and hoarseness for 4 months. On examination, a large smooth globular mass filling the supraglottis obscuring the view of endolarynx was noted and right side level-II cervical lymphadenopathy was found. CECT neck revealed a large hypopharyngeal mass abutting the supraglottis. Microlaryngoscopic biopsy was reported as high grade carcinosarcoma and PET scan was done after 1 week which revealed no any distant metastasis. The patient was taken for transoral pulsed carbon dioxide LASER excision with modified radical neck dissection, and postoperative chemoradiation was done and after two years of closed follow-up MRI was done which revealed no disease and the patient is absolutely free of disease till now. Conclusion: It