Aneurysmal bone cyst of the mandible

Ueno, Shinji; Mushimoto, Kozo; KUROZUMI, Toshiaki; Hirase, Tatsujiro; Takasu, Jun

doi:10.1016/0278-2391(82)90123-9

Cited by 13 publications

(1 citation statement)

References 8 publications

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“…ABCs are relatively rare, nonneoplastic expansile lesions of the bone that are commonly found in the long bones and spine [2,3], and seldom involve the jaws [4,5]. Bleeding may occur during biopsy or surgery for ABCs because they are aneurysms with numerous pools of blood [6,7]. Thus, before an ABC treatment or biopsy is initiated, noninvasive methods should be used for the diagnosis of lesions [8].…”

Section: Introductionmentioning

confidence: 99%

The utility of three-dimensional dynamic contrast-enhanced magnetic resonance imaging in delineating vessel-rich regions: a case report of an aneurysmal bone cyst of the mandible

et al. 2010

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Aneurysmal bone cysts (ABCs) are classified as bone-related lesions based on the 2005 World Health Organization histological classification of odontogenic tumors. Most ABCs are diagnosed using a combination of conventional radiography, computed tomography, magnetic resonance imaging (MRI), and digital subtraction angiography. ABCs should be differentiated from true cysts or other pseudocysts because their treatment is different. Additionally, unlike other cysts, ABCs pose a hemorrhagic risk in surgery; thus, preoperative evaluation of intralesional blood flow is required. Here we report a case of a mandibular ABC in a 39-year-old woman and focus on its dynamic contrast-enhanced MRI (DCE-MRI) features. On DCE-MRI, the lesion was divided into two areas according to the enhancement pattern: the bloodpooling and blood-flow areas. The series of DCE-MR images of the blood-pooling area showed marked enhancement of the margin, but no enhancement in the inner part of the cavity. Additionally, the time-signal intensity curve (TIC) demonstrated no change in the signal intensity (SI) until approximately 15 min after gadoliniumdiethylenetriamine penta-acetic acid (Gd-DTPA) administration. In contrast, the series of DCE-MR images of the blood-flow area exhibited marked enhancement in the cyst cavity in the early phase. The TIC showed a rapid increase in SI in the early phase, followed by a rapid decrease until 150 s, and finally a gradual decrease until approximately 15 min after Gd-DTPA administration. Thus, in the current patient, preoperative DCE-MRI clearly delineated the vessel-rich area within the lesion.

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Section: Introductionmentioning

confidence: 99%

The utility of three-dimensional dynamic contrast-enhanced magnetic resonance imaging in delineating vessel-rich regions: a case report of an aneurysmal bone cyst of the mandible

et al. 2010

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Aneurysmal Bone Cyst of the Mandible

Giddings

Kennedy

Knipe

et al. 1989

Archives of Otolaryngology - Head and Neck Surgery

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\s=b\ Aneurysmal bone cyst is an uncommon benign lesion that rarely presents in the craniofacial region. No prior reports of this entity involving the mandible could be found in the otolaryngologic literature, and it has been reported only infrequently in the maxilla. Two previously unreported cases originating in the mandible are presented with a review of the literature, pathology, and diagnosis of this lesion.Treatment of this lesion consists of complete surgical removal and immediate bone grafting for reconstruction. (Arch Otolaryngol Head Neck Surg. 1989;115:865-870) Although 50% of aneurysmal bone cysts (ABCs) are found in the long bones of the body and another 20% are found in the vertebral column, its occurrence in the craniofacial area is rare, with involvement of the man¬ dible being less common than the max¬ illa. Because of its infrequent appear¬ ance, ABCs may be confused with neoplastic lesions requiring vastly dif¬ fering treatment. To avoid incorrect diagnosis, the pathologist should be familiar with the clinical presentation. Even after an adequate biopsy is per¬ formed, the diagnosis may be in ques¬ tion, with the exact diagnosis not de¬ termined until the entire tumor is ex¬ cised. In the past, management has consisted of curettage, cryotherapy, and local resection. Two case studies are presented as well as a review of the literature, diagnosis, pathology, and treatment of this interesting lesion. The etiology and pathogenesis of ABCs remain unclear, but several theories are reviewed. REPORT OF CASESCase 1.-A 14-year-old white adolescent was originally seen at Geisinger Medical Center, Danville, Pa, Oct 8, 1986, on refer¬ ral from his local physician. He had been well until six weeks before his initial exam¬ ination, when he developed a small lump in his left cheek. At that time, it was nontender and not associated with an upper respiratory tract infection, fever, chills, eating, or history of antecedent trauma. He was taken to a local emergency room and treated with amoxicillin for a suspected "ear infection." The patient had no im¬ provement on this medical regimen and was seen again in an outside emergency room, where a chest roentgenogram and complete blood cell count were obtained and were both found to be normal. The patient was admitted to his local hospital, and treat¬ ment was begun with intravenous cefazolin sodium. While in the hospital, he was ex¬ amined by a local otolaryngologist who re¬ ferred the patient to our institution. Over the four weeks since the patient had first noticed the mass, it had slowly increased in size, become tender, and the patient now complained of trismus.On physical examination, a 10 X 8-cm firm, tender mass on the left side of the face protruded 4 to 5 cm, producing obvious fa¬ cial asymmetry. The mass was nonmobile, with no evidence of fluctuation. Examina¬ tion of the oral cavity revealed the patient could only open his mouth 2 cm. Cranial nerves V and VII were intact bilaterally. The rest of the physical examination re¬ sults were unremarkable.A co...

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