Rett Syndrome

Rett syndrome is a multisystem disorder that primarily affects girls. Only in rare cases are boys affected (who may experience more severe symptoms). Multiple loss-of-function mutations to the MECP2 gene are the cause of Rett syndrome. It is a progressive,...

Tenosynovial Giant Cell Tumor (TGCT)

Overview Tenosynovial giant cell tumor (TGCT) is a non-malignant tumor involving the joint synovium, bursae, and tendon sheath. These rare tumors are sometimes referred to as giant cell tumor of the tendon sheath (GCT-TS) and/or pigmented villonodular synovitis...