Source:http://linkedlifedata.com/resource/umls/id/C0009080
NCI: An enlargement of the tips of the fingers or toes and a change in the angle where the nails emerge. It occurs when the amount of soft tissue beneath the nail beds increases. It may be idiopathic, hereditary, or associated with a wide range of diseases, including cardiopulmonary disorders and malignant neoplasms.,NCI: An abnormal enlargement of the terminal phalanges accompanied by increased length-wise curvature of the nails, giving the digits a club-like appearance. Clubbing has been noted with a wide variety of conditions, including pulmonary and cardiac diseases, liver disorders, and disorders of the gastrointestinal tract.