Thyroid cancer is a malignant neoplasm derived from the follicular cells of the thyroid gland, in addition to medullary carcinoma, which arises from neuroendocrine C cells. The last thirty years have seen a sharp increase in thyroid cancer cases. The purpose of this study is to present a model of nursing care according to the International Classification for Nursing Practice (ICNP®) for a 77-year-old patient after thyroid cancer dissemination and metastasis of papillary and follicular carcinoma. The patient required a right parietal-occipital craniectomy and Grunenwald incision, excision of the lesion with resection of the trachea, with excision of the left internal jugular vein, plasty of both the left venous angle and the outlet of the lowest thyroid vein to the left brachiocephalic vein, as well as drainage of the left pleural cavity. Medical records, a patient interview, a patient family interview, and assessment using scales were analysed: the VAS Scale, the life satisfaction scale and cancer adjustment questionnaire. The onset of cancer completely changes the functioning and life of the patient as well as of his/her family and loved ones, which is why family education and emotional support are so important. The ICNP® is a significant facilitator in the development of the nursing process and is also a facilitator of communication between nursing staff from around the world.