There is discussed case of malignant paraganglioma with cervical lymph node metastasis that was complicated by mistake during peroperative histology. Peroperative histological examination revealed metastasis of medular carcinoma of thyroid gland. Total thyroidectomy was performed. Postoperative histological assessment revealed metastasis of carotic paraganglioma. Tumour was resected together with carotic arteries. Their reconstruction was performed during second procedure.

        Key words: tumour of glomus caroticum – metastasis of neck lymph nodes – resection of tumour together with infiltrated carotic arteries and their replacement