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Transphenoidal hypophysectomy
Surg Tech
16
Anatomy
Undergraduate 2
04/25/2015

Additional Anatomy Flashcards

 


 

Cards

Term
Where is the pituitary gland located in the brain?
Definition
It is located within the sella turcica, which is a small bony depression in the sphenoid bone.
Term
What is the pituitary gland "considered"?
Definition
The pituitary gland is considered the master gland.
Term
What are the two surgical approaches to pituitary tumors?
Definition

1. Crainiotomy- Larger tumors

2. transphenoidal resection-smaller tumors

Term
What are the advantages of doing a transphenoidal approach?
Definition

1. Recovery time is shorter.

2. The cranium is not opened.

3. Less pain

4. Less complications

Term
What tests are done?
Definition
Endocrine function test and a MRI.
Term
What position is the patient in?
Definition
Semi-Fowler's
Term
What medications are used?
Definition

Lidocaine with epinephrine

 

Term

Could Cocaine be applied to the nasal mucosa before surgery?

 

Definition
Yes.
Term
What are the two incisions the surgeon may make?
Definition
The surgeon may make an incision in the upper gum margin just under the lip, or through the nasal cavity.
Term
Where is the graft taken from, and what is done to keep it from drying out until needed?
Definition
The fascial graft is taken from the thigh and placed on the back table in saline to prevent it from drying out.
Term
The floor of which sinus is removed to view the sella turcica?
Definition
The sphenoid sinus.
Term
Should nasal instruments be kept on a seperate mayo stand during the procedure?
Definition
yes.
Term
What instruments are used to punch through the sella turcica?
Definition
Kerrison ronguer and osteotomes.
Term
What is the tumor removed with?
Definition
Pituitary curette, dissector, enucleator, and suction.
Term
What special instrument was designed for this procedure?
Definition
Bivalved speculum.
Term
Are tumors in the pituitary gland usually benign or malignant?
Definition
They are usually benign and are often responsible for overproduction of pituitary hormones.
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