Sex Cord-Gonadal Stromal TumorsGranulosa Cell TumorGastrointestinal Stromal TumorsFibrous Dysplasia, MonostoticUterine NeoplasmsOvarian NeoplasmsSertoli Cell TumorStromal CellsProto-Oncogene Proteins c-kitCalbindin 2Gastrointestinal NeoplasmsBenzamidesThecomaPiperazinesPyrimidinesNeprilysinReceptor, Platelet-Derived Growth Factor alphaSpinal Cord