01-24-2008, 07:30 AM
A 15-year-old male presents to his primary care physician with a large mass near his left shoulder. X-rays of the proximal left humerus show an onion skin appearance. A bone biopsy would most likely show which of the following?
A. Malignant osteoma
B. Small, malignant blue cells in sheets
C. Benign osteoid, woven bone, and osteoclasts
D. Multiple tissue types, including skin, cartilage, and sebaceous glands
E. A bony stalk with a cartilaginous cap
A. Malignant osteoma
B. Small, malignant blue cells in sheets
C. Benign osteoid, woven bone, and osteoclasts
D. Multiple tissue types, including skin, cartilage, and sebaceous glands
E. A bony stalk with a cartilaginous cap