Carney's triad is defined by the coexistence of at least two of three rare 
disorders, including gastric epithelioid leiomyosarcoma (malignant 
leiomyoblastoma), pulmonary chondroma, and paraganglioma, most often 
extra-adrenal and functioning. We report a new case in a 10-year-old girl. The 
paraganglioma, although nonfunctioning, was detected after it was searched for, 
as Carney's triad was suspected. Unrelated seems the development of breast 
fibroadenomas in the same patient. Whenever a patient with one component of the 
triad is encountered, the possibility of this syndrome should be considered and 
the other two components sought.