Symptoms of Chondroblastoma
Pain is the most common symptom of a chondroblastoma. Because the tumors are typically found near joints, it is joint pain that will often prompt a visit to the doctor. Over-the-counter pain medications such as acetaminophen and ibuprofen may help relieve this pain at first-but will become ineffective as the tumor grows in size.

Other signs and symptoms of a chondroblastoma may include:

Joint stiffness
Joint swelling

Muscle atrophy (wasting away of the surrounding muscle from lack of use)

A limp (when the tumor is in the lower extremities)

A chondroblastoma is usually small and contained within the bone, so patients do not normally see or feel a mass.