MUSA DIAGNOSTIC CRITERIA asymmetrical thickening (a), cysts (b), hyperechoic islands (c), fan-shaped shadowing (d), echogenic subendometrial lines and buds (e), translesional vascularity (f), irregular junctional zone (g) and interrupted junctional zone (h). The MUSA (Morphological Uterus Sonographic Assessment) criteria provide a standardized system for describing and reporting ultrasound features of the uterine myometrium, primarily used to diagnose adenomyosis. The criter