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NBME 18 Answers

nbme18/Block 3/Question#21

48 yo woman, gradual onset of back pain over 2 weeks

Metastatic carcinoma of the breast

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submitted by lamhtu(31),

Stem should maybe say some lesions are lytic and some are sclerotic. Breast mets to bone is mixed type according to FA? If you go off the mets being purely lytic, one could think thyroid carcinoma is the correct primary tumor.

lae  thats also what I thought +  

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submitted by lae(0),

uptodate says it can cause only osteolytic lesions too, and because it says "most likely" and breast cancer is the most common cancer in women, it is breast ...