Question of the Week # 448 and 449

Q448  ) A 78 year old man presents to emergency room with severe pain in his right lower extremity. Pain began after he stumbled and fell on a sidewalk. He does not report pain anywhere else and did not lose consciousness. No tingling or numbness in either extremity. He reports inability to bear weight because it is extremely painful. His past medical history is significant for coronary artery disease and hypertension. He does report about 8lbs weight-loss in the past 1 month.  On examination, he is afebrile. There is tenderness in the right thigh area. Laboratory investigations reveal Hemoglobin 10.5gm%, Platelet count 110k/ul, Calcium at 10.4 mg/dl ( N = 9.0 to 10.5 mg/dl) , Serum creatinine 2.0 mg/dl, Total protein 4.5 gm/dl, Albumin 2.0gm/dl and Ferritin 200 ng/ml.  Liver function tests including Alkaline phosphatase are within normal limits. Whole body bone scan is negative for any lesions. Serum protein electrophoresis is normal with out any monoclonal spike.

An x-ray of the femur is shown  below :

bone

448) Which of the following is most helpful in diagnosing this condition?

A) Colonoscopy

B) DEXA scan

C) 24 hour urine electrophoresis

D) Vitamin D level

E) Parathyroid hormone level

 

449) Which of the following is likely to explain the patient’s findings?

A) Metastatic colon cancer

B) Multiple Myeloma

C) Osteoporosis

D) Secondary Hyperparathyroidism

E) Metastatic Prostate cancer

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