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Jaffé and Lichtenstein first coined the term "aneurismal cyst" in 1942 [11] In 1950 they modified this term to "aneurismal bone cyst". They may be associated with bone tumors. The simple bone cyst is a common, benign, fluid-containing lesion, most commonly found in the metaphysis of long bones, typically the proximal humerus or femur ...
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]
Cysts of the jaws are cysts—pathological epithelial-lined cavities filled with fluid or soft material—occurring on the bones of the jaws, the mandible and maxilla. Those are the bones with the highest prevalence of cysts in the human body, due to the abundant amount of epithelial remnants that can be left in the bones of the jaws.
The lesion may arise de novo or may arise secondarily within a pre-existing bone tumor, because the abnormal bone causes changes in hemodynamics. An aneurysmal bone cyst can arise from a pre-existing chondroblastoma, a chondromyxoid fibroma, an osteoblastoma, a giant cell tumor, or fibrous dysplasia. A giant cell tumor is the most common cause ...
It is a classed as a pseudocyst, [1] since there is no epithelial lining or fluid content. This defect is usually considered with other cysts of the jaws, since it can be mistaken for such on a radiograph. Two classification systems were proposed to categorize Stafne bone cavity based on its depth [2] and content. [3]
Periapical cysts have a characteristic unilocular [8] shape on radiographs. There is also a severe border of cortication [9] between the cyst and surrounding bone. Pseudocysts, on the other hand, have a fluid filled cavity but are not lined by epithelium, therefore they have a less severe and more blurred border between the fluid and bony ...
Image credits: Ludwig_Vista2 #7. Endometriosis (tissue from the womb) is not cancer. But it can send out cells that spread through your internal organs and grow, stick your guts together or block ...
A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath. [3] It most often occurs at the back of the wrist , followed by the front of the wrist. [ 3 ] [ 4 ]