Question

exophthalmos can occur as a result of:
a pituitary disease
b diabetes
c thyroid disease
d addison disease

Explanation:

Exophthalmos (protrusion of the eyes) is most commonly associated with thyroid - related disorders. In Graves' disease (an autoimmune thyroid disorder), the immune system attacks the tissues around the eyes, causing inflammation and swelling. This leads to the characteristic bulging of the eyes. Pituitary disease (e.g., acromegaly) can cause facial bone changes but not typically exophthalmos. Diabetes can have ocular complications like retinopathy but not exophthalmos. Addison's disease (adrenal insufficiency) mainly affects the skin (hyperpigmentation), metabolism, and other systemic symptoms, not the eyes in the form of exophthalmos.

Answer:

C. thyroid disease