All of the following are true about Lymphoma of the thyroid, except:
It is slow growing
It is more common in females
It is clinically confused with undifferentiated tumours
May present with respiratory distress and dysphagia
Lymphomas of the thyroid are fast growing tumors, not slow growing. It usually present with as a goitre that has grown significantly over a sho period. Ref: Harrison's Principle Of Internal Medicine, 16th Edition,Page 2126/ 18th edition chapter 341.