BÁO CÁO 2 TRƯỜNG HỢP U NGOẠI BÌ THẦN KINH NGUYÊN THỦY (PNET) TẠI KHOA TAI MŨI HỌNG BỆNH VIỆN CHỢ RẪY

Abstract

Objective: Reviewing clincal symptoms, radiological images and manangement for 2 patients with PNET tumor of infratemporal fossa at ENT department of Cho Ray Hospital. Methods: 02 case reports of PNET tumor of the infratemporal fossa at ENT department of Cho Ray hospital. Results: Both 2 cases present with painful face swelling. The CT-Scan and MRI show ill-defined tumor locate at infratemporal fossa that invade zygomatic bone, temporal fossa, and the skull base. 01 case was treated with transcervical approach ( Sebileau Carrega), biopsy was performed in 1 case. Immunohistochemistry results of 2 cases are PNET. 01 case is undergoing radiotherapy, 1 case has died due to tumor recurrence. Conclusion: PNET tumor is a malignant tumor, rapid growth and rarely seen at the head and neck.  To date, there are no clinical or radiological modalities that could detect this rare tumor early. However, histopathology, immunohistochemistry are keys to its diagnosis.