 
         
         
         Abstract
         
         We report on a young female who had presented with fatigue, bilateral knee pain and
            gait disturbance. Primary hyperparathyroidism was diagnosed together with splenomegaly
            and anemia. Bone marrow biopsy revealed myelofibrosis. A parathyroid adenoma was excised
            during surgical intervention. As early as three months after the operation, hematologic
            parameters improved along with bone markers without any other intervention. The control
            bone marrow biopsy demonstrated well marked regression in marrow fibrosis. Her spleen
            has also gradually decreased in size.
         
         
         These findings indicate that her myelofibrosis was the result of primary hyperparathyroidism.
            Anemia associated with primary hyperparathyroidism may be due to bone marrow fibrosis.
         
         
         
            
Key words
         
         
            Hyperparathyroidism - myelofibrosis - anemia
          
      
    
   
      
         References
         
         
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Baki Kumbasar
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