Organomegaly involves the enlargement of body organs. Many different factors may cause such enlargement. While some causes are benign, others are more serious. Heart enlargement, liver enlargement, and spleen enlargement â called cardiomegaly, hepatomegaly, and splenomegaly, respectively â represent three examples of abnormal organ enlargement.
Thumb pain can result from damage or injury to any of the structures in your thumb, including bones, joints, tendons, nerves, muscles, blood vessels, connective tissue, skin or fingernails. The symptoms may be constant or they may vary, and they may improve or worsen with movement.
The opponens pollicis inserts into the entire metacarpal bone located in the thumb. There are a variety of medical conditions which can cause pain in the muscles of the hand, including the thenar muscles. Tendinitis is common in this area due to frequent use of small equipment, such as cell phones.