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. 2022 Apr 27;75:8. doi: 10.1186/s13620-022-00216-7

Fig. 20.

Fig. 20

Longitudinal parasagittal cranial image of the distal intermediate ridge of the tibia (DIRT). The distal intermediate ridge appears as a linear (dashed arrow) hyperechoic structure. There is a normal well-defined hypoechoic interface (arrow) with the remainder of the distal tibial epiphysis. Marker is to proximal