1/9. Aneurysmal bone cyst of the temporal bone.OBJECTIVE AND IMPORTANCE: Aneurysmal bone cysts (ABC) are benign bone neoplasms which typically involve the spine and long bones. We present a rare case of an ABC in the temporal bone with significant cerebellar compression. CLINICAL PRESENTATION: The patient was a young boy who presented with several weeks of left posterior auricular pain. Computed tomography, magnetic resonance imaging and angiogram showed an expansile bone neoplasm involving the left petrous temporal bone. INTERVENTION: A retrosigmoid-transmastoid craniectomy was performed, and total removal of the bone lesion was achieved. The pathological examination revealed the diagnosis of ABC. CONCLUSION: The postoperative course was uneventful, and the imaging studies demonstrated total removal of the neoplasm. This case represents the imaging and surgical management of a rare ABC in the temporal bone. This diagnosis should be considered in the differential of bone neoplasms in this region.- - - - - - - - - - ranking = 1keywords = neoplasm (Clic here for more details about this article) |
2/9. Aneurysmal bone cyst of the rib: a case report.An aneurysmal bone cyst involving the rib is very rare. Forty-four cases have been reported in the literature. Primary neoplasms of the ribs are uncommon and malignant tumours are significantly more common than benign tumours in this location. The condition is a rare benign, progressive bone tumour. The aetiology and natural history are unknown. The Authors report the case of a 38-year-old man with an aneurysmal bone cyst of the right 6th rib, treated by en-bloc resection. The patient has been followed up now for ten years with no signs of recurrence.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |
3/9. Lateral retrovascular approach to the upper cervical spine.The authors describe the surgical anatomy of lateral approach to the upper cervical spine. The approach is retrovascular retropharyngeal extraoral allowing for anterolateral exposure of the upper cervical column, and it may be enlarged posteriorly on the homolateral posterior hemiarch of C1 and C2, and/or inferiorly on the lower cervical column. Absolute indications to this approach are anterolateral fusion with transarticular screws C1-C2 and excision of skeletal neoplasms adjacent to the vertebral artery. For other indications such as the treatment of anterior neoplasms and spinal cord decompression it is preferable to use pre-vascular extraoral approach or transoral approach.- - - - - - - - - - ranking = 0.5keywords = neoplasm (Clic here for more details about this article) |
4/9. The sitting position in posterior access to the cervical spine for the treatment of neoplasm.The authors evaluate the posterior approach to the cervical spine with the patient in a sitting position for the surgical treatment of neoplasms of the vertebral arch. Advantages and risks, particularly those related to anesthesia, are examined. Two cases in which the sitting position was advantageous are reported.- - - - - - - - - - ranking = 1.25keywords = neoplasm (Clic here for more details about this article) |
5/9. Fine needle aspiration diagnosis of aggressive giant cell tumor of bone. A case report.giant cell tumors of bone are neoplasms with potential local and systemic aggressiveness. A case of giant cell tumor with radiologic and histologic features suggestive of locally aggressive behavior is reported. Cytologic material was obtained by fine needle aspiration from an intraosseous tumor that destroyed the cortex and from the invaded, adjacent soft tissues. The smears from the osseous aspirate showed the typical cytologic features of giant cell tumor, whereas the invaded tissues had a prominent loss of cohesiveness between mononucleate and giant cells. In addition, mitotic figures in the mononucleate component were noticeable. The differential diagnosis based on clinical and cytologic findings is discussed.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |
6/9. Fibro-osseous lesions of the face and skull with aneurysmal bone cyst formation.Aneurysmal bone cyst engraftment on benign fibro-osseous lesions, well known to occur in the extracranial skeleton, has been reported infrequently in the craniofacial bones. When this combined lesion occurs in the skull the clinical and radiographic features often suggest an aggressive neoplasm. The clinical, radiographic, and pathologic features of five cases are presented, and this uncommon lesion of the craniofacial bones is discussed in view of these cases and those reported in the literature.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |
7/9. Solid variant of aneurysmal bone cyst in a patient with cyclic neutropenia.A 16-year-old female with cyclic neutropenia (CN) was incidentally found to have a thoracic vertebral mass during the preoperative work-up for maxillary sinus surgery. An exploratory thoracotomy revealed a very vascular tumor involving T-10 and T-11 vertebral bodies. Gross total resection of the tumor was achieved. pathology revealed a solid variant of aneurysmal bone cyst. This is a rare benign neoplasm of bone more commonly seen in the mandible and facial bones as well as involving the small tubular bones of the hands and feet. Because of its rarity, location, and an unknown association with CN, we found this case worthwhile to publish.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |
8/9. Pediatric aneurysmal bone cyst of the distal tibia.A rare, large pediatric aneurysmal bone cyst with pathologic fracture of the distal tibia of a 4-year-old female was presented. Classic radiographic and magnetic resonance imaging findings have been discussed. In a comprehensive review of the literature, aneurysmal bone cysts are an infrequently reported neoplasm of the foot and ankle bones. Lesions are characteristically seen in patients younger than 20 years of age, but rarely younger than 5 years. The benign cyst has a 2:1 female-to male predilection. In long bones, the lesion is typically metaphyseal in nature. Although the pathogenesis is still unknown, there exists the possibility of two types of aneurysmal bone cysts: a primary type without preexisting lesion and a secondary form associated with some other lesion. The diagnosis of aneurysmal bone cyst can be strongly suspected by correlating the radiographic and magnetic resonance imaging findings. For definitive diagnosis, accurate histologic evaluation is imperative to rule out any confusion or possibility with a malignant tumor.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |
9/9. chondroblastoma of the patella with a secondary aneurysmal bone cyst.A case of chondroblastoma of the patella combined with an aneurysmal bone cyst is presented. chondroblastoma of the patella is an uncommon, benign neoplasm. On the other hand, secondary aneurysmal bone cyst is frequently associated with giant cell tumour of chondroblastoma.- - - - - - - - - - ranking = 0.25keywords = neoplasm (Clic here for more details about this article) |