A 33-year-old man was referred to a specialist center with a left neck mass and hypertension. The patient underwent surgery, which confirmed a malignant neck paraganglioma with metastasis to a cervical lymph node. He had no family history of carotid body tumors or pheochromocytoma.
Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1461, Houston, TX 77030, USA.