1/11. Aneurysmal bone cyst of the coronoid process of the mandible.A rare case of an aneurysmal bone cyst (ABC) involving the right coronoid process of the mandible in a 12-year-old girl is presented. The characteristic features with fluid-fluid levels within the lesion observed on magnetic resonance imaging (MRI) and Computed tomography (CT) was helpful in the preoperative diagnosis.- - - - - - - - - - ranking = 1keywords = mandible (Clic here for more details about this article) |
2/11. Aneurysmal bone cyst of the frontal sinus.Aneurysmal bone cysts are benign, vascular, cystic osseous tumors. Approximately 2% of all aneurysmal bone cysts are found in the head and neck region, with the most common site being the mandible. We report a case of an aneurysmal bone cyst arising from the frontal sinus in a pediatric patient. The diagnosis was suggested through various radiographic studies, with the final pathologic diagnosis confirmed after tumor excision. Complete en-bloc excision was performed by using a bifrontal craniotomy approach, with immediate reconstruction of the defect by using a split calvarial bone graft.- - - - - - - - - - ranking = 0.2keywords = mandible (Clic here for more details about this article) |
3/11. MR features of aneurysmal bone cyst of the mandible and characteristics distinguishing it from other lesions.Aneurysmal bone cyst (ABC) is a relatively rare, non-neoplastic expansile lesion of bone. Bleeding may occur during an operation or biopsy for ABC, as this cyst is an aneurys with numerous pools of blood. Therefore, it is necessary to diagnose ABC before treatment or biopsy. In the present report, we describe the characteristic computed tomography (CT) and magnetic resonance imaging (MRI) features of ABC in the mandible. Based on the literature and on our own experiences, we compare with the features of ABC with the corresponding features of other lesions showing similar conventional radiographic appearances. In the present case, bone-targeting CT showed the characteristic feature, which reflected the histopathological appearance of a partially cystic meshwork divided by coarse septa. MRI showed almost homogeneous intermediate signal intensity, including a partial slight low-signal-intensity area on the T1-weighted image, and homogeneous high signal intensity, which showed a 'bubbly' appearance, on T2-weighted image. On the enhanced T1-weighted image, the intermediate signal intensity areas apart from the areas that showed slight low-signal intensity on the non-enhanced T1-weighted image, were well enhanced. This creates a 'honeycomb' appearance. The 'meshwork' appearance on bone-targeting CT, the 'bubbly' appearance on the T2WI and the 'honeycomb' appearance on Gd-T1WI may be the characteristic features of ABC.- - - - - - - - - - ranking = 1keywords = mandible (Clic here for more details about this article) |
4/11. Aneurysmal bone cyst of the mandible: a case report.The case of a 6-year-old boy with a rapid growing mass in the right angle of the mandible that clinically and radiographically resembled a malignant lesion is presented. The biopsy specimen showed an aneurysmal bone cyst. The patient was treated surgically via extraoral approach including immediate mandibular reconstruction with with iliac crest bone. The literature is briefly reviewed.- - - - - - - - - - ranking = 1keywords = mandible (Clic here for more details about this article) |
5/11. Solid aneurysmal bone cyst of the mandible.Aneurysmal bone cyst is a rare, rapidly expanding, locally destructive, and often misdiagnosed lesion. It accounts for about 1-2% of primary biopsied bone tumours. About 60-70 cases have been reported in the jaws; particularly the molar regions. Eighty percent of patients are under 20 years of age. Aneurysmal bone cyst exists as a primary or secondary lesion. It may be conventional (95%) or solid (5%). The solid variant is more difficult to recognize. The practical importance of aneurysmal bone cyst lies in the fact that it must be differentiated from malignant tumours: mainly with giant cell tumours and teleangiectatic osteosarcoma.- - - - - - - - - - ranking = 0.8keywords = mandible (Clic here for more details about this article) |
6/11. Aneurysmal bone cyst of the coronoid process of the mandible: a case report.A rare case of aneurysmal bone cyst (ABC) located in the ramus of the mandible with involvement of the coronoid process is presented. The pressure of the slow growing tumor apparently caused severe resorption of the zigomatic arch. Treatment consisted of enucleation of the tumor via a pre-auricular access. A two year follow-up showed restoration of facial symmetry and partial regeneration of the coronoid process. To our knowledge this is the second published case of an ABC of the coronoid process of the mandible.- - - - - - - - - - ranking = 1.2keywords = mandible (Clic here for more details about this article) |
7/11. Aneurysmal bone cyst of the coronoid process of the mandible.A rare case of aneurysmal bone cyst (ABC) located in the coronoid process of the mandible in a 12-year-old girl is presented. Treatment consisted of excision of the lesion through preauricular, submandibular and intraoral approach. An access osteotomy distal to second molar region was required to gain access to medial side of the coronoid process. To our knowledge, this is the third case of an aneurysmal bone cyst of the coronoid process of mandible. While examining a patient with a large expansile intrabony jaw cavity with thin peripheral bone, which is filled with blood without presence of bruit, thrills and pulse pressure, the diagnosis of aneurysmal bone cyst should be on top of the differential diagnosis list. Seventy-four to eighty-five percent of aneurysmal bone cysts of jaws occur in 10-20 years age group. Therefore, a pediatric dentist may be the first person to see such a lesion.- - - - - - - - - - ranking = 1.2keywords = mandible (Clic here for more details about this article) |
8/11. Alternatives in the management of aneurysmal bone cysts of the mandible.Aneurysmal bone cyst (ABC) is an unusual expansile lesion of bone which may arise within the mandible on rare occasions. This lesion may arise with very few signs or symptoms. Surgical treatment consists of complete excision or curettage. The recurrence rate may be high in lesions which are incompletely excised. Three cases of aneurysmal bone cysts in children will be presented, demonstrating the wide variation of clinical presentation. One case required an extensive mandibular resection, necessitating the first reported microvascular mandible reconstruction for this entity in a pediatric patient.- - - - - - - - - - ranking = 1.2keywords = mandible (Clic here for more details about this article) |
9/11. Aneurysmal bone cyst versus hemangioma of the mandible. Report of a long-term follow-up of a self-limiting case.The aneurysmal bone cyst is an enigmatic and misnamed lesion displaying variable etiopathogenic and histologic characteristics. The aneurysmal bone cyst may appear as a primary lesion or as a secondary lesion associated with other pathologic entities. This article presents a probable self-limiting lesion that provides an opportunity to present an approach to classifying aneurysmal bone lesions.- - - - - - - - - - ranking = 0.8keywords = mandible (Clic here for more details about this article) |
10/11. Aneurysmal bone cyst of the mandible.The aneurysmal bone cyst is a nonmalignant lesion that by expanding disrupts the architecture of the affected bone and destroys surrounding tissue. Developing rarely in the craniofacial region, and more commonly affecting the long bones and the spine, the lesion has characteristic radiographic features but is definitively diagnosed only by pathologic characteristics. Complete surgical excision is used to treat aneurysmal bone cyst, with either curettage or composite resection. recurrence is common in incompletely excised lesions. Adjunctive cryotherapy reduces the risk of recurrence, and radiotherapy is reserved for nonresectable lesions. The case we report of a young man seen for a large mandibular aneurysmal bone cyst demonstrates the complexity of diagnosing and treating this condition.- - - - - - - - - - ranking = 0.8keywords = mandible (Clic here for more details about this article) |
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