keepgoing Forum Fanatic

Topics: 93 Posts: 2,147
| | 05/19/07 - 05:29 AM  
 
   
 
|   #1 |
A 54-year-old man presents to a physician with headaches. A complete blood count demonstrates a hematocrit of 62%. The peripheral smear shows normocellular erythrocytes, with increased reticulocytes and nucleated red cells. Bone marrow biopsy demonstrates increased numbers of erythrocytic precursors. Cancer of which of the following organs would be most likely to cause these findings? A. Colon B. Kidney C. Ovary D. Prostate E. Thyroid
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| dncosta Licensed, finally

Topics: 19 Posts: 603
| | 05/19/07 - 06:17 AM  
 
   
 
|   #2 |
B
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| po Forum Elite
Topics: 39 Posts: 356
| | 05/19/07 - 11:52 AM  
 
   
 
|   #3 |

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| Medusin Forum Elite

Topics: 19 Posts: 296
| | 05/19/07 - 12:15 PM  
 
   
 
|   #4 |
B. Because of erythropoietin?
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| inkspot Forum Guru

Topics: 33 Posts: 629
| | 05/19/07 - 04:04 PM  
 
   
 
|   #5 |
B because of erthopoietin ! its funny its a man and the option has ovary to this! how would u explain headaches? mets?
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| new_n_lost Forum Hero

Topics: 663 Posts: 6,107
| | 05/19/07 - 08:46 PM  
 
   
 
|   #6 |
B. Kidney
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| Medusin Forum Elite

Topics: 19 Posts: 296
| | 05/19/07 - 09:13 PM  
 
   
 
|   #7 |
jaja I had not noticed that, good point inkspot.
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| lq2006 Forum Elite
Topics: 43 Posts: 382
| | 05/20/07 - 05:22 PM  
 
   
 
|   #8 |
B
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| keepgoing Forum Fanatic

Topics: 93 Posts: 2,147
| | 05/21/07 - 12:07 AM  
 
   
 
|   #9 |
The correct answer is B. The hematologic finding is erythrocytosis, which can be caused by abnormal erythropoietin secretion by renal cell carcinoma (i.e., a paraneoplastic syndrome). Absolute erythrocytosis also occurs in a number of other conditions, such as hypoxia, other types of renal disease, some tumors (e.g., hepatocellular carcinoma, meningioma, pheochromocytoma, cerebellar hemangioblastoma, adrenal adenoma), androgen therapy, Bartter's syndrome, or in polycythemia vera. Cancers of the colon (choice A), prostate (choice D), and thyroid (choice E) do not usually produce inappropriate hormones. Cancers of the ovary (choice C) can produce male or female sex steroids, but do not produce erythropoietin.
___________________ "Deh Shiva Var Mohe Ahey ,Shubh Karman Te Kabhun Na Tarun ,Na Darun Arson Jab Jaye Laroon, Nischey Kar Apni Jeet Karoon"
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