Myositis

This a special form of orbital pseudotumor in which the lymphatic infiltration primarily involves one or more ocular muscles. Aside from significant pain during motion, symptoms include limited ocular motility with double vision (diplopia). Depending on the extent of the myositic changes, exophthalmos with chemosis and eyelid swelling may also be present. Ultrasound studies (Fig. 15.6) will reveal thickening of the ocular muscles with tenonitis (inflammation of Tenon's capsule).

H In Graves' disease, only the muscle belly is thickened. In myositis, the entire muscle is thickened.

— Diagnosis of myositis.

— Diagnosis of myositis.

Fig. 15.6 The ultrasound image (B-mode scan) shows thickening of the entire hypoechoic rec-tus medialis (arrow).
Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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