Malignancy
Only a small percentage of lumps in the neck are malignant, and most thyroid nodules are benign.
There are many factors to consider when diagnosing a malignant lump.
If the patient is a smoker, the chances of malignancy are considerably higher. When coupled with difficulty swallowing or breathing, this may be a symptom of a serious condition and requires speedy medical attention.
Read more about this topic: Thyroid Nodule