Question

JD's blood test reveals high TSH and low T4. Which disease may JD have?

	A.	Hashimotos Thyroiditis
	B.	A tumor causing hyposecretion of hormones from the thyroid gland
	C.	A hyposecreting tumor of the anterior pituitary gland
	D.	All of the above
	E.	A and B only

Answer 1

Answer

E) A and B only

Explanation

• Since pituitary gland will normaly release TSH, if the level of TSH is low. A high TSH level would confirm that thyroid gland is responsible for the hypothyroidism and not pituitary gland responsible.Hence the option C) is problem related to pituitary galnd, which is wrong.
• If the T4 is low and TSH is not elevated , the pituitary gland would be the cause of hypothyroidism.
• Hashimotos thyroiditis is an autoimmune disorder, in which thyroid gland is gradually destroyed, causing decrease in the level of thyroid hormone.
• There are some tumour on thyoid gland, which cause hyposecretion of thyroid hormone.