Aneurysmal Bone Cyst - Everything You Need To Know - Dr. Nabil Ebraheim скачать в хорошем качестве

Aneurysmal Bone Cyst - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim's animated educational video describing Aneurysmal Bone Cysts. The typical locations of aneurysmal bone cysts are the posterior elements of the vertebrae or in the long bones, such as the distal femur and proximal tibia. Aneurysmal bone cysts are destructive expansile lytic lesions that contain cavities filled with blood. This expansile lytic lesion could expand greater than the width of the growth plate or the width of the bone. Patients with aneurysmal bone cysts are usually younger than 20 years old. The lesion is usually located in the metaphysis. There is usually a periosteal rim around the lesion, however the lesion can expand into the soft tissue. MRI or CT scan will probably show fluid lines or levels. The lesion can occur as a primary lesion and it will express USP6 translocation or it can be secondary and can be associated with underlying lesion in 30% of the time, such as giant cell tumor, fibrous dysplasia, chondromyxoid fibroma and chondroblastoma. Pathology: blood filled cysts and lakes of blood with fibrous stroma and may have giant cells. Differential Diagnosis: Aneurysmal bone cysts can be confused with two entities on x-rays: 1.Simple bone cyst 2.Telangiectatic osteosarcoma. Aneurysmal bone cysts may mimic a giant cell tumor pathologically because it contains giant cells. Clinical Examination •Pain •Swelling •May have a fracture (rare) •Rarely the patient may have neurological deficit if the lesion occurs in the spine and is pushing or pressing onto the nerves. Treatment •Start with nonoperative treatment if there is a fracture •The treatment is usually curettage of the cyst and bone graft •Recurrence of aneurysmal bone cysts occurs in approximately 25% of the cases. oThe highest rate of recurrence occurs in patient with open growth plates. Follow me on twitter: https://twitter.com/#!/DrEbraheim_UTMC Donate to the University of Toledo Foundation Department of Orthopaedic Surgery Endowed Chair Fund: https://www.utfoundation.org/foundati...