Acromegaly

Acromegaly happens when the pituitary gland, a small gland at the base of the brain, releases too much growth hormone over a long period, usually because of a benign tumor. This excess growth hormone pushes the liver to make more IGF-1, a hormone that drives tissue and bone growth. In adults, since the growth plates have already closed, the result isn't getting taller, but bones and soft tissue can thicken, and facial features, hands, and feet may enlarge gradually over years.

For bone health, acromegaly is tricky because bone mineral density on a DEXA scan can look normal or even high, yet the bone's inner structure, especially in the spine, is often weaker than it appears. This mismatch happens because excess growth hormone affects trabecular bone differently than cortical bone, and it can disrupt normal bone remodeling, the ongoing process of breaking down and rebuilding bone. The result is a higher risk of vertebral compression fractures that standard bone density numbers alone may not predict well.

Because T-scores can be misleading in this condition, doctors may use additional tools like Trabecular Bone Score or imaging to assess fracture risk more fully. Acromegaly is usually treated by endocrinologists through surgery, medication, or radiation aimed at lowering growth hormone and IGF-1 levels. Any decisions about treating acromegaly or managing bone risk from it should be made with your prescribing doctor, since the right approach depends on hormone levels, tumor details, and your overall health.