Pancreas Metastasization of Nasal NK/T-Cell Lymphoma: A Case Report.

We report here a case of nasal natural killer/T-cell lymphoma with metastasization into the pancreas. A 43-year-old Chinese female patient presented with right nasal obstruction and purulent rhinorrhea that lasted for the past half year and worsened gradually despite antibiotic medical treatment. Physical examination revealed a mass in the right nasal cavity and an enlarged lymph node in the right submandibular region. A PET/CT scan and immunostaining of the resectate led to a diagnosis of nasal natural killer/T-cell lymphoma, clinical stage IIE, and the International Prognostic Index score of 1. The patient received radiotherapy followed by four cycles of the CHOP chemotherapy. A complete remission was achieved, and the patient was disease-free for 9 months. On a subsequent follow-up, abdominal ultrasound scan, enhanced abdominal CT scan, and ultrasound-guided fine-needle aspiration biopsy revealed pancreatic metastasis secondary to nasal lymphoma. Radiotherapy (40 Gy) to the whole pancreas was done, followed by two courses of the SMILE regime chemotherapy, leading to a complete remission. At the moment, the patient is undergoing subsequent chemotherapy.