Endocrine I (pituitary)

Question 1

lets review the anatomy
complete:
the pitutary gland on socket like called ……… in the ……… bone, inferior to it there is cavity called ……… . in the lateral side there are sac clled ……… inside it the are impotant structure called ………

Answer 1

1. sella turcica
2. sphenoid
3. sphenoid sinus
4. cavernous sinus
5. carotid artery

Question 2

(T/F) the pitutary appears as homogenous structure in the sella turcica

Answer 2

FALSE the posterior lobe (neurohypophysis) more dense than the anterior lobe (adenohypophysis)

Question 3

imaging techniques used for endocrine

Answer 3

high resolution MRI (2 - 3mm thick slices)

Question 4

microadenoma is less than …. cm

Answer 4

1cm

Question 5

which is most common suprasellar mass in adult

Answer 5

Pituitary macroadenomas

twice as common as pituitary microadenomas

Question 6

pituitary gland disease

Answer 6

1. prolactinoma
2. acromegaly
3. cushing

Question 7

what is this condition and how it appears radiologically
Global adenohypophyseal dysfunction.
Preserved (posterior lobe )neurohypophyseal function

Answer 7

pituitary hypoplasia

1. Small shallow sella turcica
2. Small adenohypophysis.
3. Ectopic Neurohypophysis.
4. Midline facial & cranial anomalies

Question 8

types of cushing disease

Answer 8

75% ACTH dependent
%25 ACTH independent

Question 9

DDs of suprasellar/parasellar mass

Answer 9

Lipoma
Pars intermedia cyst (Rathk’s Cleft cyst )
Meningioma
Craniopharyngioma
Arachnoid cyst
Apoplexy
Sheehans syndrome
Aneurysm

Question 10

supra sellar mass in post partum

Answer 10

sheehans syndrom