Aneurysmal bone cyst involving the hand: a review and report of two cases.

Two cases of aneurysmal bone cyst occurred in the hand. One involved the distal phalanx and followed a crushing injury to the tip of the finger; amputation of the part resulted in cure. The other involved almost all of the first metacarpal and was resected and replaced by an iliac bone graft. The appearance of an aneurysmal bone cyst in roentgenograms and after angiography usually is not diagnostic, although benign, progressive growth and potential for recurrence require complete removal.     

Aneurysmal bone cyst of the hand

Diagnosis of aneurysmal bone cyst in the hands is confused by rarity (2%) and overlapping characteristics of other lesions, especially benign osteoblastoma and giant-cell tumor. Pseudosinusoidal vascular channels create interfaces between liquid blood (maintained by fibrolysin) and connective tissue cells. The role of trauma is inexplicable.     

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.     

Aneurysmal bone cyst of the mobile spine: report on 41 cases

STUDY DESIGN: Forty-one cases of aneurysmal bone cyst of the mobile spine were retrospectively reviewed. OBJECTIVES: To evaluate the role of surgical and nonsurgical treatment of aneurysmal bone cyst of the spine. SUMMARY OF BACKGROUND DATA: Ten to 30% of aneurysmal bone cysts arise from the mobile spine, frequently occurring in pediatric patients. The course of the disease depends on the aggressiveness of the tumor, as well as the treatment. Intralesional surgery seems to be an effective treatment, as well as radiotherapy and embolization. METHODS: All charts, radiographs, and images were reviewed. The composite information provided by this review allowed for oncologic and surgical staging of these cases. Thirty-two patients underwent curettage (14 of them followed by radiotherapy), four were submitted to selective arterial embolization, three received radiotherapy alone, and two underwent en bloc-excision. RESULTS: All patients were found alive and disease free at final follow-up evaluation. Two recurrences followed one incomplete curettage and one embolization. The combination of curettage and radiotherapy, although effective, showed the greatest incidence of late axial deformity. Selective arterial embolization was curative in three of four cases and did not affect the possibility of surgery in case of local recurrence. CONCLUSIONS: If confirmed on larger series, selective arterial embolization seems to be the first treatment option for spine aneurysmal bone cyst, because of the low cost-to-benefit ratio. Diagnosis must be certain, based on pathognomonic radiographic pattern or on histologic study.- In case of neurologic involvement, pathologic fracture, technical impossibility of performing embolization, or local recurrence after at least two embolization procedures, complete intralesional excision would be the therapy of choice.     

Aneurysmal bone cyst involving the skull base: report of three cases

Aneurysmal bone cyst is a bening, non-neoplastic lesion that present most frequently under the age of 20 years. The metaphysis of long bones is the usual site of origin. The involvement of the skull is rare. In the 2.5 to 6% of such cases reported in the literature, the skull vault is more often the site than the skull base. Three cases of aneurysmal bone cyst involving the skull base have been managed at King Faisal Specialist Hospital and Research Center. Two females and one male, all 10 years of age and younger, presented with a painless, progressive swelling. The preoperative radiological studies showed characteristic findings and were highly suggestive of the diagnosis. Angiography also gave characteristic findings. Preoperative endovascular embolization of the arterial feeders to the tumor was performed in two patients who had a significant decrease in intraoperative bleeding from the tumor. All cases underwent surgical excision with a good outcome.     

Aneurysmal bone cyst: a review of 26 cases

Twenty-six cases of aneurysmal bone cyst are reviewed to determine the frequency, preferred treatment and prognosis. Some observations are made as to the existence of aneurysmal bone cyst as a primary entity or a secondary manifestation of a more serious underlying condition. The difficulty of differentiating an aneurysmal bone cyst from a giant cell tumor of bone is acknowledged and certain similarities to unicameral bone cyst are noted, with reference to some intriguing hypotheses put forward in the literature.     

Aneurysmal bone cyst: clinicopathologic features and treatment of ten cases involving the hand

Ten cases of aneurysmal bone cyst in the hand were identified among 208 such lesions in our institutional files. The patients (six women and four men) had a mean age of 27.3 years. Two patients had open physes. Seven lesions were in the metacarpals. Radiographic examination showed that in all cases the lesion was both expansile and completely lucent. There were no recurrences in the three patients treated by complete excision and bone grafting. Curettage and bone grafting in seven cases was associated with four recurrences. Three of these four local recurrences were treated successfully with curettage procedures. Treatment of aneurysmal bone cysts of the small bones of the hand requires either thorough exteriorization, curettage, and bone grafting or excision and bone grafting.     

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.     

Aneurysmal bone cyst of the temporal bone: case report

BACKGROUND: Aneurysmal bone cysts (ABCs) are uncommon lesions of the temporal bone and their occurrence in the calvarium is rare. CASE DESCRIPTION: A case of a right temporal ABC is reported in a 14-year-old boy who presented swelling of the right temporal region. Magnetic resonance imaging showed a destructive and expansile bone lesion on the right anterior temporal and orbital bone. The lesion was removed in total by the right temporal craniotomy and orbitozygomatic osteotomy. ABC was diagnosed in the pathologic examination. The patient had good recovery during the postoperative course. CONCLUSIONS: This report presents the diagnosis and imaging of an ABC in the temporal bone. This localization is very rare for ABC. Total excision, if feasible, is the ideal treatment.     

Aneurysmal bone cyst of the lunate: case report

Aneurysmal bone cysts rarely affect the carpus. We present a case of aneurysmal bone cyst affecting the lunate. Curettage and bone grafting of the lesion was successful, with no recurrence after 2 years of follow-up.     

Aneurysmal bone cyst of the odontoid process: case report

Aneurysmal bone cysts (ABCs) are relatively uncommon, benign lesions. Fully 50% occur in long bones and 20% in the vertebral column, mostly in patients under 20 years of age. We report a case of an ABC in the odontoid process of a 74-year-old who sought treatment for pain and myelopathy. This is the first case reported of an ABC of the odontoid process.     

Aneurysmal temporal bone cyst. Apropos of 2 new cases

Aneurysmal bone cyst is a well known lesion on the metaphyse of lung tubular bones or on the spine. Unusually, it is detected on the skull and more rarely again on the temporal bone. The authors, talking about the eleven cases they have found in the literature and two recent personal cases, try to describe the main diagnostic dates of this temporal lesion which one has never known if it is a real tumor or a reactional dystrophic pseudotumor secondary to an intrabone circulatory incident, perhaps a phlebitis. As for all other locations, these temporal bone forms are more frequently encountered among adolescents or young adults and, because their blowing bone effect, give clinical signs which directly result from their aggressive behavior on the surrounding structures, in this particular location: temporal fossa swelling, otologic, ophthalmologic or stomatologic symptoms, facial or trigeminal nerves troubles and rarely central neurological signs. On CT-scan, it appears as a space-occupying lesion located in the temporal fossa, with a blowing bone aspect, with intracranial and infratemporal expansions. This CT scan lesion is heterogeneous and contrast enhanced except in its center which is hypodense, as a cyst. The MRI shows comparable pictures. Its total excision, made easier by a preoperative embolization, gives a total and definitive recovery.