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A 58-year-old male has a mass on his shoulder. He presents with MR images prior to a biopsy done by the referring surgeon are seen in Figures A and B, and the biopsy specimens with and without histochemical staining for CD34 are shown in Figures C and D, respectively. What is the next best step in treatment?
CT of the chest, abdomen, and pelvis
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A 45-year-old man complains of swelling around his right forearm. He works as a contractor and the swelling is affecting his use of tools. A transverse T1-weighted MR image is shown in Figure A. Short tau inversion recovery (STIR) images do not show high signal intensity. Which of the following histopathological images (Figures B through F) correlates best with the MR image?
After months of right shoulder pain, a 70-year-old man undergoes work up of a right arm mass with a MRI and also has a CT of his chest/abdomen/pelvis. A representative MRI image is shown in Figure A. He has difficulty using his arm because of the increasing size of the mass. The CT scans shows no evidence of metastatic disease. What is the next step in management?
Chemotherapy followed by surgery
A 55-year-old man complains of chronic pain and fullness in his proximal posterior thigh that is worse with sitting. Radiograph, MRI, and biopsy are shown in Figures A, B, C, and D, respectively. What is the most likely diagnosis?