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Aneurysmal bone cyst (ABC) is a non-cancerous bone tumor composed of multiple varying sizes of spaces in a bone which are filled with blood. [1] [4] The term is a misnomer, as the lesion is neither an aneurysm nor a cyst. [5] It generally presents with pain and swelling in the affected bone. [1]
Aneurysmal bone cysts are benign neoformations which can affect any bone. More than half occur in the metaphysis of long bones (especially femur and tibia ) and between 12 and 30% in the spine. They were described in 1893 by Van Arsdale, [ 9 ] who called these lesions "homerus ossifying haematoma".
CT scans show features such as thin and expanded bony cortex, with or without bony matrix calcifications, and fluid levels due to aneurysmal bone cyst or bleeding within tumour. However, axial views of the subarticular bone (bony area adjacent to the articular cartilage) is not accurate due to voxel signal averaging. MRI is superior than CT on ...
Aneurysmal bone cyst, a benign bone tumor with a radiographic cystic appearance. [13] Baker's cyst or popliteal cyst (behind the knee joint) Mucoid cyst (ganglion cysts of the digits) Stafne static bone cyst (an anatomic variant with radiographic cystic appearance in the posterior mandible) Subchondral cyst (cysts near the bony joints) [14]
A unicameral bone cyst, also known as a simple bone cyst, is a cavity filled with a yellow-colored fluid. [ 1 ] [ 3 ] It is considered to be benign since it does not spread beyond the bone. [ 4 ] Unicameral bone cysts can be classified into two categories: active and latent. [ 4 ]
B. Non-epithelial-lined cysts 1. Solitary bone cyst; 2. Aneurysmal bone cyst; II. Cysts associated with the maxillary antrum 1. Mucocele; 2. Retention cyst; 3. Pseudocyst; 4. Postoperative maxillary cyst; III. Cysts of the soft tissues of the mouth, face and neck 1. Dermoid and epidermoid cysts; 2. Lymphoepithelial (branchial) cyst; 3 ...
A bone tumor is an abnormal growth of tissue in bone, traditionally classified as noncancerous (benign) or cancerous (malignant). [1] [4] Cancerous bone tumors usually originate from a cancer in another part of the body such as from lung, breast, thyroid, kidney and prostate. [1] There may be a lump, pain, or neurological signs from pressure. [1]
Pseudocysts are like cysts, but lack epithelial or endothelial cells. Initial management consists of general supportive care. Symptoms and complications caused by pseudocysts require surgery. Computed tomography (CT) scans are used for initial imaging of cysts, and endoscopic ultrasounds are used in differentiating between cysts and pseudocysts.