Assignment 5 Flashcards
What system are pituitary tumors in?
Endocrine System
What are the 3 histological types of pituitary adenomas?
- Chromophobe adenomas
- Acidophilic adenomas
- Basophilic adenomas
Which histological type of pituitary tumor has no endocrine activity?
Chromophobe adenomas
Which histological type of pituitary tumor is the most common?
Chromophobe adenomas
Are pituitary adenomas benign or malignant?
benign
Are pituitary carcinomas benign or malignant?
malignant
Where is the pituitary gland located?
sella turcica
Where is the sella turcica located radiographically?
2cm anterior to and 2cm superior to the EAM
Which cranial nerves can be involved with pituitary tumors?
Cranial nerves II, III, IV, V, and VI
Where do pituitary adenomas typically spread via invasion?
Into the cavernous sinus
Where do pituitary carcinomas spread to?
The brain, spinal cord, meninges, or bone around the pituitary
If there is elevation in the hormones after gross tumor resection, what does this indicate?
Residual disease or recurrent tumors
What is bitemporal hemianopsia?
Bilateral vision loss
What is cerebrospinal fluid rhinorrhea?
A condition where CSF finds its way into the nose and sinuses, often appearing as a very watery runny nose
List three symptoms associated with pituitary adenomas.
Endocrine abnormalities, visual impairment, cranial nerve abnormalities
