A 72-year-old man presents with severe headaches, blurry vision, and spontaneous epistaxis. Vital signs show BP 168/94 mmHg, HR 88/min, RR 16/min, temp 37°C. Fundoscopy reveals dilated tortuous retinal veins. Serum studies demonstrate markedly elevated IgM at 8.2 g/dL with normal hemoglobin. Bone marrow biopsy shows lymphoplasmacytic infiltration. He denies recent infections or lymphadenopathy. Which diagnosis best explains these findings?
- A)Waldenstrom macroglobulinemiaGABARITO
- B)Follicular lymphoma
- C)Essential thrombocythemia
- D)Multiple myeloma
- E)Acute lymphoblastic leukemia
Explicação
Waldenstrom macroglobulinemia is the correct answer because excess IgM increases serum viscosity, producing headaches, visual changes, and mucosal bleeding. Ver explicação completa e trilha adaptativa →