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Pituitary Adenoma

Pituitary Adenoma image

A mass that arises from the pituitary gland is called a pituitary adenoma. It is usually benign. It is classified based on the size of the mass and the type of cells that predominate in the tumor. These tumors can be functioning or nonfunctioning. Their function is based on the type of cells that comprise them. Tumors that are less than 10 mm in size are called pituitary microadenoma while those that are more than 10 mm are called pituitary macroadenoma. A pituitary microadenoma does not usually cause symptoms because they are small and they do not impinge on the » » » [Read more]

Thyroid Problems

The thyroid gland is an endocrine gland located in the neck in front of the windpipe. The normal size is about 12-20grams with an abundant blood supply. The thyroid gland produces two hormones, thyroxine (T4) and triiodothyronine (T3) which is consistently regulated by negative feedback to the brain specifically by thyroid stimulating hormone from the anterior pituitary and thyrotropin-releasing hormone from the hypothalamus. Excess or deficiency of these hormones is the underlying problem in thyroid diseases. Iodine is a critical component in the production of thyroid hormones by the body. The thyroid gland obtains iodine from the blood. The blood » » » [Read more]