Aneurysmal bone cyst of the spine

Summary Long term follow up of three patients with aneurysmal bone cysts has allowed us to draw attention to features which facilitate diagnosis and determine adequate treatment. The lesion occurs usually under the age of twenty with a slight female predominance. Treatment consists in complete local excision. Failing this, curettage should be carried out, and this gives good results. The effectiveness of radiotherapy cannot be assessed from our series, but in our opinion it may not be necessary in every case and shoud be applied judiciously, as postradiation sarcomas have been reported. Special attention must be paid to the tendency for spontaneous regression and cure after incomplete removal, particularly in recurrent cases, with a view to avoiding more aggressive treatment than is necessary. Multi-location (vertebra and distant bone), endothelial proliferation, and obliteration of the lumen of the small blood vessels support the view that this is a vascular lesion.     

Aneurysmal bone cyst of the spine

The cases of twenty-two patients with an aneurysmal bone cyst of the spine above the sacrum were analyzed with regard to sex, age, site, symptoms, and radiographic findings. Four patients had extension of the lesion to the adjacent vertebra or rib, and twelve patients had neurological deficits. The primary treatment was either radiotherapy or surgery alone, or surgery and radiotherapy combined. No recurrences were found in patients who were treated with surgery alone or with surgery and radiotherapy, while three of the six patients who were treated with radiotherapy had a local recurrence, two of which were fatal. The patients with neurological deficits recovered after healing of the cyst.     

Aneurysmal bone cyst of the spine. Case report

The aneurysmal bone cyst (ABC) is a fast-growing tumor of undefined neoplastic nature. It is occasionally an aggressive benign lesion whose treatment of choice is a complete resection, even though the risk of profuse transoperative bleeding exists. We present a female patient with thoracic spine deformity, with progressive paresthesias and muscle weakness of lower extremities that evolved to paralysis of both lower extremities and sphincter incontinence. Based on radiographic films, lytic lesions were identified at T7 to T9 vertebrae as well as medullary space invasion. In electrophysiologic tests, a complete somatosensorial pathway block was reported. Prior to resection of the neoplastic lesion and thoracolumbar stabilization, an incisional biopsy was performed. There was no postoperative medullary functional improvement. Morphological findings corresponded to an aneurysmal bone cyst at T8. This lesion is mainly located in the long bones and less frequently of the spine, where instability and medullary compression may occur. It is possible to confuse this neoplasia with other lesions. Hence, definite diagnosis with biopsy is necessary for determining an adequate therapeutic plan to eradicate recurrence risk or associated neurologic sequelae, as well as to gain proper stability at the involved vertebral segments.     

An anterior approach to spinal pathology of the upper thoracic spine through a partial manubriotomy

Surgical pathology in the region of the upper thoracic spine (T1-4) is uncommon compared with other regions of the spine. Often times posterior and posterolateral approaches can be used, but formal anterior decompression often requires a low anterior cervical approach combined with a sternotomy, which yields significant perioperative morbidity. The authors describe a modified low anterior cervical dissection combined with a partial manubriotomy that they have used to successfully access and decompress anterior pathology of the upper thoracic spine. Their modified approach spares the sternoclavicular joints and leaves the sternum intact, decreasing the morbidity associated with these added procedures.     

Aneurysmal bone cyst of spine: a review of literature

Aneurysmal bone cysts (ABC) are benign, highly vascular osseous lesions characterized by cystic, blood-filled spaces surrounded by thin perimeters of expanded bone. Children and young adults are most affected by spinal ABCs. We document a review of literature.     

Aneurysmal bone cyst of the spine with familial incidence

STUDY DESIGN: A report of two cases of aneurysmal bone cysts of the spine occurring in a father and daughter. OBJECTIVE: To present an unusual finding of familial incidence of aneurysmal bone cyst and review the literature. SUMMARY OF BACKGROUND DATA: Aneurysmal bone cysts are benign, expanding, locally aggressive lesions. Up to 20% of cases involve the spine. The cause of primary aneurysmal bone cysts remains unclear. There have been three previous reports of a familial incidence supporting the importance of a hereditary component in the cause of aneurysmal bone cysts. METHODS: A 36-year-old man and a 7-year-old girl were diagnosed with aneurysmal bone cyst involving the spine by clinical manifestations, radiographic features, and histologic evaluation. RESULTS: The father remains recurrence- and symptom-free 6 years after primary resection. Five months after surgery, the daughter was found to have recurrent disease by magnetic resonance imaging and underwent a second procedure within 1 year of the primary resection. CONCLUSION: The occurrence of a primary aneurysmal bone cyst in two family members, occurring at adjacent vertebral levels, is suggestive of a hereditary component to the formation of primary aneurysmal bone cyst.     

An unusual appearance of an aneurysmal bone cyst of the thoracic spine.

Aneurysmal bone cysts (ABCs) have been reported in essentially every bone of the human skeleton. This case report documents a very unusual clinical appearance for this entity: a superior mediastinal mass. Also, the patient underwent multiple imaging studies that demonstrated both common (absence of septations) and unusual (extensive involvement of vertebral body with little involvement of posterior elements) characteristics of ABCs.     

上胸段病变的经胸骨前入路手术治疗

[目的]探讨上胸段病变的经胸骨前入路治疗的手术方式。[方法]介绍5年来对6例颈胸交界椎疾患的患者，采用经胸骨前入路的手术方法，暴露病变的上胸段椎体（T1-4），对病变予以清除、减压、植骨内固定，并对相关文献予以复习。[结果]6例患者分别为C7椎体完全移位1例，T1、2椎体结核1例，颈胸结合部肿瘤2例，T2、3椎间盘突出1例，C7T1骨折1例。年龄11～82岁；平均37．3岁。均采用经胸骨前入路，手术入路显露良好，病灶暴露充分。术后平均随访12．4个月。除1例肿瘤患者术后复发，1例术后呼吸道梗阻死亡外，余4例患者均获得满意疗效。[结论]颈胸交界处椎体疾病的发生率较低，此部位结构复杂，单纯颈部入路不能很好的显露T2、3椎体，经胸侧入路对于上胸椎也难以显露，经胸骨前入路可以很好的暴露下颈椎及T4以上椎体，该入路对颈胸交界处椎体的病变的处理是一种很好的选择。     

Anterior transsternal approach to the upper thoracic spine.

Cervicothoracic junction and upper thoracic spine down to T4 can be reached through anterior approach via sternotomy. Transsternal approach is the best route to gain access to lesions localized within vertebral bodies of the upper thoracic spine allowing for their resection, interbody fusion and replacement with bone cement. Consecutive modifications of transsternal approach evolved towards less extensive osteotomy from full median sternotomy, through manubriotomy with clavicle resection to partial lateral manubriotomy. Less extensive modifications provide limited lateral exposure of the spine and are more demanding technically. We present two cases of the upper thoracic spine tumours operated on through full medial sternotomy. We believe that median sternotomy has several advantages over less extensive modifications: it is technically simple to perform approach for trained thoracic surgeon, safer as it provides better exposure of the mediastinum and thus sufficient control of great vessels including subclavian ones, gives better exposure of T3, T4 and even T5 vertebral bodies, allows perpendicular sight and attack to anterior surface of the upper thoracic spine and therefore good visualizing of the posterior longitudinal ligament and dura, do not destabilize shoulder girdle nor affect function of the upper limb. Additional caudal exposure of the thoracic spine as down as T5 can be obtained by dissecting a plane between the brachiocephalic vein, vena cava superior and ascending aorta.     

Aneurysmal bone cyst of the thoracic spine: treatment by excision and segmental stabilization with Luque rods

Preoperative radiological evaluation with magnetic resonance imaging and computed tomography was valuable in planning the surgical management of a destructive lesion of the posterior elements of the thoracic spine that was causing spinal cord compression in an 18-year-old woman. Preoperative recognition of bilateral involvement of the pedicles in addition to the laminae and spinous process led to use of prophylactic segmental stabilization of the spine with Luque rods after successful excision of an aneurysmal bone cyst. This case provides an example of the usefulness of computed tomographic scanning and magnetic resonance imaging in assessing the distribution and location of vertebral tumor and its potential effect on spinal stability. The efficacy of combining radical excision with stabilization for treatment of aneurysmal bone cysts of the spine is emphasized.     

Aneurysmal bone cyst of the spine in an adolescent: a case report

Aneurysmal bone cysts are often localized in long bones of the lower extremity and are characterized by aggressive expansion with local destruction of bone. We present the case of a 14-year-old female patient with a two weeks history of low dorsal pain. Computerized tomography (CT) scan of the spine showed local destruction of the 10th thoracic vertebra and magnetic resonance imaging (MRI) revealed a 50 percent compression of the spinal cord. The partly septated and partly solid cystic tumour in the 10th thoracic vertebra was resected and a dorsal spondylodesis stabilised the thoracic spine. Aneurysmal bone cyst should be considered in the differential diagnosis of unspecific pain of the spine. Follow-up examinations after three, five and twelve months did not show signs of recurrence.     

Aneurysmal bone cyst of the rib.

Aneurysmal bone cysts are uncommon lesions, especially in the ribs. Four patients with aneurysmal bone cysts of the rib are presented and previously reported cases reviewed. A brief discussion of the clinical manifestations, pathology, aetiology, and current treatment of aneurysmal bone cyst is also included.     

Aneurysmal bone cyst of the sternum.

A very rare case of aneurysmal bone cyst of the sternum is described. Aneurysmal bone cyst is a tumorlike bone lesion occumng commonly in the metaphysis of long bones and in the vertebrae. This report is one of the very few cases in the literature of aneurysmal bone cyst of the sternum. Total resection of the tumor and reconstruction of the sternal defect using autogenous fibula are presented