NEJM Case: 73 yoM w/ 1 mo hx of fatigue & diffuse bone pain, pancytopenia (no abd pain, neuro Sx of HSM). WBC 1.7, Hgb 5.9, P111k, MRI shows AVN femura & Humerus. Bone marrow bx revealed macrophages w/ “wrinkled tissue paper” https://t.co/raObXpTHBr https://t.co/U6nQnPKtqI