Diagnostic Considerations for Hip Pain

Anatomical Considerations

The greater trochanteric bursa and ischiogluteal bursa are distinct anatomical structures with different pain patterns, with trochanteric bursitis typically causing lateral hip pain and ischiogluteal bursitis causing deep buttock and posterior hip pain, particularly with sitting 1, 2
The American College of Radiology recommends using MRI or ultrasound to evaluate extra-articular soft tissue abnormalities such as bursitis when the diagnosis remains unclear 1, 2

When trochanteric bursa injection fails to relieve pain, the diagnosis must be reconsidered rather than attributing symptoms to arthritis, and ultrasound can be used to examine soft tissue structures around the hip for specific diagnoses including different types of bursitis 1, 2
The pain location, such as sitting on the ischium vs. lateral hip, should guide anatomical localization, and advanced imaging may be necessary to exclude additional pathology 1, 2

Formal treatment for ischiogluteal bursitis should include targeted injection of the ischiogluteal bursa under imaging guidance if symptoms recur, and consideration of ultrasound or MRI to confirm the diagnosis and exclude other pathology 1, 2
To prevent similar errors, imaging such as ultrasound or MRI should be used to confirm bursa location before injection when clinical examination is equivocal, and multiple potential pain generators in the hip region should be considered rather than assuming a single diagnosis 1, 2