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A 14-year-old girl complains of persistent ankle pain and intermittent swelling that is worse after playing lacrosse. Figure A is a radiograph and Figures B and C are low-power microscopy images of the lesion. What is the diagnosis and best next treatment step?
Curettage and bone graft for giant cell tumor
Aspiration and steroid injection for unicameral bone cyst
Curettage and bone graft for aneurysmal bone cyst
Wide resection for telangiectic osteosarcoma
Chemotherapy and wide resection for telangiectic osteosarcoma
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A 12-year-old boy presents with pain in the left hip for 6 weeks duration. Physical exam shows he is afebrile. He has a WBC of 12.2, and an ESR of 16. A radiograph is shown in Figure A. A T2-weighted MRI is shown in Figure B. A T1-weighted MRI with and without contrast is shown in Figure C and D respectively. What is the most appropriate next step in treatment.
Curettage and bone grafting
Percutaneous high-frequency ablation
Wide resection and perioperative chemotherapy
You are seeing a 16-year-old female with shoulder pain. She is otherwise healthy and denies trauma. Based on the radiograph, MRI, and histology shown in Figures A-C, what is your diagnosis?
Simple bone cyst
Aneurysmal bone cyst
Unicameral bone cyst
A 10-year-old male presents with knee pain after a collision with another soccer player. Knee radiographs are taken and show a cystic-appearing lesion in the metaphyseal region of the proximal tibia without evidence of fracture. An MRI is performed and is shown in Figure A. If a biopsy is performed, the histology would most likely resemble which Figure (B-F)?
A 12-year-old female is involved in a low speed motor vehicle accident and presents with a pathologic fracture in the ulna. A radiograph is shown in Figure A. A needle biopsy is performed and histology is shown in Figure B. What is the best next step in treatment?
Open biopsy for adequate diagnostic tissue
Open reduction internal fixation of the distal ulna
Immediate curettage and adjuvant chemo/radiotherapy
Nonoperative fracture management
Preoperative chemotherapy and resection of tumor
Intralesional curettage and bone grafting is an accepted component of the treatment plan for all of the following conditions EXCEPT?
Giant cell tumor
A 6-year-old male presents with pain and swelling in his proximal tibia after twisting his knee. AP and lateral radiographs are shown in Figures A and B. Figure C shows a sagittal section from an MRI, and Figure D shows the high-power histology specimen from biopsy. What is the most likely diagnosis?
Non ossifying fibroma