“Anatomy is to physiology as geography is to history; it describes the theatre of events.”
Jean Fernel
The anatomy is quite similar in the musculoskeletal apparatus. Just think at the correlations between shoulder and hip antomy; the gluteus medius and gluteus minimus externally rotate the thigh and a bursa separates the tendons from the surface of the trochanter over which they glide (that anatomy ring a bell with you?). Performing an ultrasound study at the trochanter site, you can find lots of similarities with the shoulder anatomy.

Sagittal ultrasound scans of shoulder extra-rotator cuff (left) and gluetus medius-minumus tendons (right).
Don’t forget these similarities, regarding both to anatomy and function, because it will be helpful for your clinical and ultrasound evaluation.
Dynamic hip ultrasound exam; painful trochanteric bursitis in a professional football player.
Correlation between ultrasound and MRI images (coronal T2w Spair – 1.5T) in the same patient.
Awesome information! Thank you for putting this out there!