Is single-focal thyroid cancer a type?

Single-focal thyroid cancer is not a type of thyroid cancer, but a type of thyroid cancer. Thyroid cancer is a malignant tumor originating from thyroid follicular epithelial cells or parafollicular epithelial cells, and can be divided into four types: papillary carcinoma, follicular adenocarcinoma, medullary carcinoma, and undifferentiated carcinoma.

1. Papillary carcinoma: Papillary carcinoma is the most common thyroid cancer, accounting for more than 70% of all types. It is more common in women, and the most common age is 40-60 years old. Papillary carcinoma grows slowly, has a long course of disease, has no obvious symptoms in the early stage, and often a lump in the neck is found during a physical examination. Papillary carcinoma is mainly treated with surgery, and postoperative adjuvant radiotherapy, chemotherapy, etc. are required;

2. Follicular adenocarcinoma: Follicular adenocarcinoma accounts for about 15% of all thyroid cancers. It is more common in men, and the most common age is 40-60 years old. Follicular adenocarcinoma grows faster and has a shorter course. Symptoms such as hoarseness and dysphagia may occur in the early stage. Follicular adenocarcinoma is mainly treated with surgery, and postoperative adjuvant radiotherapy, chemotherapy, etc. are required;

3. Medullary carcinoma: Medullary carcinoma accounts for about 5%-10% of all thyroid cancers and is more common in middle-aged men. Medullary carcinoma grows faster and has a shorter course. Symptoms such as diarrhea and palpitations may occur in the early stages. Medullary carcinoma is mainly treated with surgery, and postoperative adjuvant radiotherapy, chemotherapy, etc. are required;

4. Undifferentiated cancer: Undifferentiated cancer accounts for about 5% of all thyroid cancers and is more common in the elderly. Undifferentiated cancer grows rapidly and has a short course. Symptoms such as dyspnea and hoarseness may occur in the early stages. Undifferentiated cancer is mainly treated with radiotherapy.

In addition to the above, there are several other rare types of thyroid cancer in clinical practice, such as lymphocytic thyroiditis, goiter with follicular formation, etc. If you suspect you have a thyroid disease, please seek medical attention in time and follow the doctor's advice for appropriate treatment.