RESIDENT CASE STUDIES

Week 6 May 26 - May 30, 2003: Case 3

Table of Contents | List of Diagnoses | Case 1 | Case 2 | Case 3 | Case 4

79 year old male with recently noticed 6cm mass on his forearm following minor penetrating trauma

Image 1		Image 3
Image 2		Image 4

Questions:

1. The histologic features are most compatible with:
   1. Myxoid chondrosarcoma
   2. Malignant fibrous histiocytoma 
   3. Myxoid lyposarcoma 
   4. Inflammatory pseudotumor 
   5. Myxoid leiomyosarcoma 

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2. How many mitoses per 10 high power field are the minimum necessary to indicate an aggressive nature?
   1. 1 to 2 
   2. 3 to 4 
   3. 5
   4. 6 to 9
   5. 10 to 15