Final answer:
The most likely diagnosis for a CT scan showing broad infiltration of orbital fat is Graves' disease, an autoimmune disorder that causes the protrusion of the eyes. Other symptoms include weight loss, anxiety, and palpitations.
Step-by-step explanation:
The most likely diagnosis for a CT scan of the head showing broad infiltration of orbital fat is Graves' disease.
Graves' disease is an autoimmune disorder that causes an overactive thyroid gland, resulting in a cluster of symptoms known as Graves' ophthalmopathy. One of the key symptoms is exophthalmos, which is the protrusion of the eyes. This condition can be seen on a CT scan as broad infiltration of orbital fat.
Other symptoms of Graves' disease include weight loss, anxiety, palpitations, and goiter. It can be diagnosed through blood tests, imaging such as CT scans, and examination of the thyroid gland. Treatment may involve medications, radioactive iodine therapy, or surgery.