𝐃𝐫.𝐌𝐚𝐧𝐚𝐥𝐢 | 𝐇𝐄𝐀𝐋𝐓𝐇 & 𝐌𝐄𝐃𝐈𝐂𝐈𝐍𝐄 on Instagram: "🦴 Osteosarcoma The most common primary malignant bone tumor in adolescents and young adults 💥 Usually strikes at metaphysis of long bones — distal femur, proximal tibia, proximal humerus — where bones grow the fastest 🧠 Pathophysiology Malignant osteoblasts produce osteoid → destroy bone → cause periosteal elevation (Codman’s triangle). 📸 Radiology Hallmarks: ☀️ Sunburst appearance 🛡️ Codman’s triangle (lifted periosteum) ⚙️

Study Smarter with MedSchoolBro on Instagram: "Vote in the poll below 👇 🧒 Benign = many start with “O.” Osteochondroma: Most common benign; boys under 25; lateral bony outgrowth with cartilage cap. Osteoid osteoma: Night pain relieved by NSAIDs. Osteoma: Linked to Gardner syndrome. Chondroma: Benign cartilage tumor (hands/feet common). Giant cell tumor: Ages 20–40, epiphysis, “soap-bubble” on X-ray. ⚠️ Malignant Osteosarcoma: Painful enlarging mass; sunburst or Codman triangle; teens or older