Is thyroid type 4a generally benign?

Thyroid 4a is a common classification of thyroid nodules. Generally, thyroid nodules are divided into multiple categories, and thyroid 4a is a relatively common classification. From the perspective of malignancy, the possibility of thyroid 4 being malignant is about 5% to 10%. Therefore, in this case, we must also pay attention and conduct timely reexamination. The reexamination time is about half a year to a year. If the growth is relatively fast, it should be surgically removed in time.

Clinical manifestations

1. Nodular goiter is more common in middle-aged women. When the body's thyroid hormone is relatively insufficient, the pituitary gland secretes more TSH. Under the long-term stimulation of this increased TSH, the thyroid gland undergoes repeated or continuous hyperplasia, leading to uneven enlargement and nodular changes in the thyroid gland. There may be hemorrhage, cystic changes and calcification within the nodule. The size of the nodules can range from a few millimeters to several centimeters. The main clinical manifestation is thyroid enlargement. Multiple nodules of varying sizes can be felt during palpation. The texture of the nodules is mostly of medium hardness. A few patients can only palpate a single nodule, but multiple nodules are often found during thyroid imaging or surgery. Patients do not have many clinical symptoms, generally only discomfort in the front of the neck, and thyroid function tests are mostly normal.