[Morphological characteristics of metastasis of undifferentiated cancer into the cervical lymph nodes without previous detection of the site of the primary tumor].

Morphological examination of the lymph nodes with undifferentiated carcinoma metastasis from 52 patients without an identified primary tumour at the time of biopsy has been performed. Metastases are subdivided morphologically into large-cell, spindle-cell and small-cell. Morphological criteria of differential diagnosis are given.

[Simultaneous lesion of the cervical lymph node by metastatic thyroid cancer and lymphosarcoma].

A combination of the thyroid carcinoma and diffuse lymphosarcomatosis in a patient of 56 with metastasis to the cervical lymph node with lymphosarcomatous changes is described. The diagnosis of primary multiple tumor was confirmed by the second biopsy (changes typical of lymphoblastic lymphosarcoma in the axillary lymph node).