What is taller-than-wide thyroid nodule?
Introduction: A taller-than-wide (TTW) shape is a suspicious feature of thyroid nodules commonly defined as an anteroposterior/transverse diameter (AP/T) ratio >1. An intraobserver variability of up to 18% in AP diameter evaluations has been described, which may lead to overreporting of this feature.
Can a taller-than-wide thyroid nodule be benign?
This study indicates that in a clinical sample of patients with nodular goiters referred to our center, the majority of nodules with papillary carcinomas had a taller-than-wide shape, significantly higher than that of benign.
What does a taller-than-wide thyroid nodule look like?
For example, prior studies have shown that nodules with a greater height than width (taller-than-wide) on ultrasound imaging are more likely to be cancerous than round nodules shaped like a ball. This study evaluated the association between a taller-than-wide ultrasound finding and the presence of thyroid cancer.
What shape are cancerous thyroid nodules?
Conclusion: Spherical shape is associated with an increased rate of malignancy in solid thyroid nodules. Determination of shape may assist in clinical risk assessment of thyroid cancer.
What does highly suspicious thyroid nodule mean?
For the U.S. population, the lifetime risk of developing thyroid cancer is 1.1 percent. When a thyroid nodule is suspicious – meaning that it has characteristics that suggest thyroid cancer – the next step is usually a fine needle aspiration biopsy (FNAB).
How often are highly suspicious thyroid nodules cancerous?
Guidelines provide effective cancer risk assessment for thyroid nodules. Thyroid nodules are common, but only 4–7% of nodules are cancerous. Both ultrasound and fine-needle biopsy have been used to determine if thyroid nodules are cancerous.
Is nodule size an independent predictor of thyroid malignancy?
The number of thyroid nodules is an independent predictor of the risk of thyroid malignancy [5] while the size of nodules was not found to be an independent predictor for the risk of malignancy. [9] It is generally accepted that multinodular goiter carries a smaller risk of cancer than a solitary nodule.
What is the treatment for a thyroid mass?
Radiotherapy, such as with a linear accelerator, might be used to help treat a thyroid mass. Thyroid functioning affects the body’s metabolism. A radioactive form of iodine can be used to help treat a thyroid mass. Ultrasonography is used to evaluate a thyroid mass.
What causes a lump on thyroid?
A lump in your thyroid could be caused by an infection or a goiter, which is an abnormal growth of the thyroid gland. It might not be cancerous at all. Lumps in the thyroid usually aren’t.
What does solid thyroid nodule mean?
Thyroid nodules are growths of abnormal tissue that develop on the thyroid gland. These lumps may be solid or cystic and fluid-filled. A solid thyroid nodule is more likely than a cystic nodule to be malignant. More than 90% of all solid nodules, however, are benign.
