English to Italian Medical Medical (general)

Ciao a tutti,

sono alle prese con una traduzione medica, nello specifico, si parla di pazienti affetti da GIST.
Non ho un vero e proprio contesto:

"GIST confirmed by histology and positive KIT/CD117 stain.
High risk of recurrence, defined as any of the following:
Tumor >10 cm in diameter (with any mitotic count)
Any tumor size with mitotic count >10 mitoses per 50 high-power fields (HPFs)
Tumor >5 cm in diameter and mitotic count >5/50 HPFs
Tumor rupture into the peritoneal cavity
Ambulatory with adequate ***organ function***"

Grazie!