16. Pituitary disorders

Question 1

What are the 2 major causes for clinical presentation by pituitary tumours?

Answer 1

Mass effect of tumour on local structures
- visual loss, headache

Abnormality in pituitary function
- hypo- or hyper-secretion

Question 2

What type of tumours are pituitary tumours?

Answer 2

Benign

Question 3

What structures lie around the pituitary gland that a tumour may have physical effects on?

Answer 3

Superiorly: optic chiasm

Laterally:

• III, IV (eye movement)
• Va, b (pain)
• internal carotid artery
• VI (lateral eye movement)

Question 4

What is the mass effect of a pituitary tumour with upwards growth?

Answer 4

Optic chiasm compression with visual field loss

- bitemporal hemi-anopia

Question 5

What is the mass effect of a pituitary tumour with sideways growth?

Answer 5

,

Question 6

🤩🤗🤔🤭

Answer 6

😕😟😔