Aneurysmatic bone cyst: symptoms, diagnosis and treatment

Aneurysmatic bone cyst is a bone tumour characterized by the presence of a cavity with bone which is filled with vascular tissue. It is generally considered as between 10 to 20 years of age. It is slightly more common in females.

Usual site of occurrence is at the ends of long bones such as the lower end of the femur or thigh and the upper end of humerus bones. It may also involve the spine.

These cysts can be of three types

Primary cyst arising spontaneously boneSecondary cysts that are associated with other os such as giant tumor cell, dysplasia osteosarcoma and ChondrosarcomaTraumatic cysts lesions that develop on the sites of previous bone lesions

These cysts have a tendency to expand and the bone becomes blown up like a balloon.

As the bone becomes low and expanded the symptoms generally seen of this movement are therefore pain, swelling, and difficulty in movement of the end involved. The weakened bone fracture can also occur.

If the spine is involved then there may be pain along nerves, sensory loss or even paralysis due to compression of the nerves.

Diagnosis of the cyst aneurysmatic bone is made of the rays x x ray Image is variable. Usually x-rays show bone eccentric expansion. A CT scan or MRI may also require document with precision the extent of the cyst and its spread in the surrounding tissues.

The diagnosis is confirmed by biopsy. Biopsy can also determine if the cyst is a primary or secondary type. To determine if the cyst is primary or secondary many biopsy samples must be collected on different sites in the cyst.

Treatment can be of two types

MedicalArterial EmbolizationInjection of calcitonin and methylprednisolone in to the cystSurgicalCurettage of the excision block cystEn

Arterial embolization artery supplying blood cyst is located, and then a substance is injected to block the artery. This cuts off the coast of the cyst blood supply. This causes the death of the cyst and healing occurs. This is a new method and a few patients have been treated by it.

Injections of calcitonin and methylprednisolone in cyst were used in a few cases where the surgery was very risky.

Medical treatment is avoided in patients with fracture or neurological involvement.

In curettage , a small window is made in the wall and all of its contents is removed with a spoon like instrument called a curet. Cyst is then filled with bone chips.

In block excision in cyst is removed with a margin of normal bone or tissue. The defect which remains is then rebuilt with a bone graft or implant.

Secondary aneurysmatic bone cysts are treated as the condition, with which they found to associate after biopsy.

Can cyst to reproduce after treatment?

Recurrence of cyst can occur with 1 to 2 years after treatment. Close supervision is necessary during this period. Earlier, the recursion is detected more it is easy to treat.

Growth abnormalities can occur in children. They should be monitored until their growth is complete.

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This page was created on October 22, 2010

Other bone tumours...

Dysplasia

Osteoma ostéoïde

Bone cyst

Chondroma

Osteohondroma

Back behind aneurysmatic bone cyst of bone tumours

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