Niemann-pick types a/b
I've heard that some doctors use a bone marrow biopsy to test for Niemann-Pick disease (SMPD1-associated). Is this a better or worse test?
Bone marrow biopsy is not necessary to diagnose Niemann-Pick disease (SMPD1-associated). Some doctors may have ordered this testing because the disease can impact the function of the bone marrow. However, you can get the same answers by testing blood. Bone marrow biopsy should only be done in very special circumstances if the doctor thinks the patient's bone marrow is greatly affected.