What is basophilic adenoma?
basophilic adenoma in a classification system formerly used for pituitary adenomas, an adenoma whose cells stain pale blue with basic dyes; most adenomas that secreted excessive amounts of adrenocorticotrophic hormone were in this group.
What is the most common pituitary adenoma?
Prolactin-secreting pituitary adenomas are the most common type of pituitary tumor, accounting for approximately 30 percent of all pituitary tumors.
Is pituitary adenoma life threatening?
No, in over 99% of patients, this is NOT a cancer; it is benign. Although the tumor is benign, it can cause problems because of its size, causing loss of vision, loss of normal pituitary function (hypopituitarism) and/or headache or because of excessive hormone production by the tumor.
What is Acidophilic adenoma?
A benign tumor, usually found in the anterior lobe of the pituitary gland, whose cells stain with acid dyes. Such pituitary tumors may give rise to excessive secretion of growth hormone, resulting in gigantism or acromegaly.
Can pituitary tumors be treated without surgery?
Radiation therapy uses high-energy x-rays to kill abnormal pituitary tumor cells. Radiation is extremely effective in stopping tumor growth and, with time, will lead to tumor shrinkage. Radiation therapy may be an option if the tumor cannot be treated effectively through medication or surgery.
When does a pituitary adenoma require surgery?
Tumors which secrete high amounts of the hormone prolactin usually respond to medical therapy so that surgery is not required. Small non-secretory tumors, less than one centimeter (termed a “microadenoma”), can sometimes be followed with serial MRIs to monitor for progressive enlargement before proceeding to surgery.
Is a pituitary adenoma a brain Tumour?
Pituitary adenomas are benign, slow-growing masses that represent about 10% of primary brain tumors. Pituitary carcinoma is the rare malignant form of pituitary adenoma. It is diagnosed only when there is proven spread (metastases) inside or outside the nervous system.
How is hypophysitis treated?
Primary treatment of the hypophysitis falls into four categories which include: surgery, anti-inflammatory medical therapy, conservative management and radiotherapy. Historically, surgery remains the preferred method of choice (4) when there is significant mass effect.
What is pituitary gland basophil adenoma?
Pituitary gland basophil adenoma (Concept Id: C0001431) A small tumor of the anterior lobe of the pituitary gland whose cells stain with basic dyes. It may give rise to excessive secretion of ACTH, resulting in CUSHING SYNDROME. (Dorland, 27th ed)
What is a pituitary adenoma?
1 Pituitary adenomas are benign tumors of the pituitary gland. Most are located in the anterior lobe (front portion) of the gland. 2 About 1 in 10 people will develop a pituitary adenoma in their lifetime. 3 Some pituitary adenomas secrete one or more hormones in excess. 4 People can develop pituitary adenomas at any age.
What is a microadenoma of the pituitary?
Microadenomas are pituitary adenomas that measure less than 10 mm in diameter (about three quarters of an inch). A pituitary adenoma greater than or equal to 10 mm in diameter is called a macroadenoma. Your physician may use blood tests, urine tests and imaging to diagnose a pituitary adenoma.
Can a pituitary adenoma be removed with endoscopic surgery?
In that case, individuals may need to take hormone supplements. Surgery to remove a pituitary adenoma may rarely require a craniotomy, but more typically involves a minimally invasive procedure called an endonasal endoscopic surgery where the surgeon removes the tumor through the nose.