Giant Aneurysmal Bone Cyst of the Mandible

Abstract

The aneurysmal bone cyst is a type of pseudocysts of the jaw. It is a nonneoplastic lesion of the bone, characterized by replacement with fibro-osseous tissue containing blood-filled sinusoidal or cavernous spaces. The lesion remains a relatively uncommon finding in the facial bones, and the cause and pathogenesis are yet to be elucidated. Aneurysmal bone cyst was first described as a distinct clinical and pathologic entity by Jaffe and Lichtenstein in 1942. Aneurysmal bone cyst comprises 1.5% of all nonodontogenic cysts of the jaws and 1.9% of all aneurysmal bone cysts of skeleton. A rare case of giant aneurysmal bone cyst of mandible in a 10-year-old child is presented, which was managed by surgical curettage with a long-term follow-up.

Frequency of translocation of USP‐6 in the aneurysmal bone cyst of the jaw

“…Between 1.8% and 1.9% of aneurysmal cysts are located in the jaw. 6,7 Our department, a university hospital, could report about 10 cases within more than two decades. The typical time of arising is during the second decade of life, according to our data, where the mean age amounted to 22.9 years.…”

“…5 Aneurysmal bone cysts of the jaw are considered to be very rare and account only for 1.9% of all bone lesions in the head and neck area. 6,7 Assumptions regarding the etiology, the risk factors discussed, and the recurrence rates mainly refer to known results from the long tubular bones. The data concerning the aneurysmal bone cysts of the jaw is indistinct.…”

Cisto ósseo aneurismático associado a fibroma ossificante central – relato de caso

“…1,3,6,8,13,18,20,22 Em raros casos tem sido reportado envolvimento do côndilo mandibular. 4-5, 7, 9, 12, 15 No presente caso, a lesão localizava-se em região anterior da mandíbula (parassínfise e sínfise).…”

“…É descoberto, geralmente, por meio de radiografias de rotina e pode exibir lesões bem circunscritas uni ou multiloculares. [1][2][3][4][5][6][7][8][9] Histopatologicamente, o COA pode ser classificado como primário ou secundário, dependendo da ausência ou presença de outras lesões preexistentes, respectivamente. O COA secundário pode estar associado com fibroma ossificante central, fibroma cementoossificante, lesão central de células gigantes, lesões fibro-ósseas e osteoblastoma.…”

“…Não foi observada diferença entre as condutas terapêuticas empregadas, se conservadora (n=14) ou radical (n=12), entre esses casos de COAs secundários. 1-2, 5-6,11, 19 No presente caso, devido ao conhecido potencial de recorrência dessa lesão, uma ressecção cuidadosa foi realizada com subsequente ostectomia da loja óssea e, após dois anos de acompanhamento, não foi observada recorrência, corroborando com os resultados deTabrizi et al, 2 Hebbale et al, 3 Parashari et al, 20 e Choi et al…”