in 12 out of these , the surgical removal exhibited 5 benign tumors ( 2 giant cell tumors , 1 angioma , 1 lipoma , 1 myoma ) , 5 pseudo-tumors ( 1 granulomatous tenosynovitis , 1 nodular tendinitis , 2 sebaceous cysts , 1 synovial cyst ) and 2 congenital abnormalities of the lumbrical muscles .
C0023798
lipoma
C0027651
tumors