Final answer:
Rheumatoid arthritis is not a complication of untreated Cushing's syndrome, while hypertension, type 2 diabetes, and osteoporosis are associated with the condition.
Step-by-step explanation:
Untreated Cushing's syndrome can lead to a number of health problems, but rheumatoid arthritis is not one of them. Some of the complications that may arise from Cushing's syndrome include hypertension (high blood pressure), type 2 diabetes, and osteoporosis. These conditions are associated with the hypersecretion of cortisol, which is the hallmark of Cushing's syndrome. Cortisol is known to raise blood glucose levels and contribute to the breakdown of proteins, potentially leading to muscle weakness and bone pain. Excess cortisol can also result in the redistribution of fat to certain areas of the body, such as between the shoulders (buffalo hump) and on the face (moon face).