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PubMedDate not supplied

Aneurysmal bone cyst of the paranasal sinuses associated with fibrous dysplasia: CT and MR findings.

An aneurysmal bone cyst (ABC) in the paranasal sinuses is rare with only four previous cases having been described in the sphenoid and ethmoid sinuses. This report describes a case of an ABC involving the sphenoid and ethmoid sinuses as well as the upper nasal fossae. It is currently believed that a preexisting primary bone lesion, such as fibrous dysplasia, initiates an osseous arteriovenous fistula, which creates a secondary reactive lesion of bone, the ABC. These lesions, which are comprised of multiple cysts containing liquid blood and serous fluid, are optimally studied by a combination of CT and MR scans.

Bone Cysts↗
PubMed2006

[Solid variant of aneurysmal bone cyst; report of a case].

We report a rare case of a solid variant of aneurysmal bone cyst (ABC) of the right 4th rib. A 29-year-old woman was admitted to our hospital for an abnormal shadow on chest X-ray. Chest computed tomography (CT) demonstrated the lesion mass to be located in the area of the right 4th rib. Bone scintigram revealed a hot spot in the right 4th rib. The right 4th rib was resected en bloc with the parietal pleura, and adjacent intercostal muscles via right anterior thoracotomy. Postoperative pathological evaluation was consistent with a solid variant of ABC.

Adult↗
PubMed2004

Aneurysmal bone cysts in children: complications of fibrosing agent injection.

PURPOSE: To report complications of direct fibrosing agent injection in the treatment of aneurysmal bone cysts (ABCs) in children. MATERIALS AND METHODS: The authors retrospectively analyzed all cases of ABCs treated with direct fibrosing agent injection (Ethibloc; Ethnor Laboratories, Ethicon, Noderstedt, Germany) at Robert Debré Hospital since 1994. Histologic diagnosis was assigned by means of surgical biopsy findings prior to treatment. Treatment responses were categorized. Injection was administered with general anesthesia, computed tomographic guidance, and use of a 14- to 16-gauge needle. Contrast material was injected to determine presence of intracystic septa and verify absence of venous opacification. Amount of fibrosing agent injected corresponded to amount of contrast material necessary to fully opacify the cyst. Intraosseous needle track was obliterated with histoacryl injection. RESULTS: Fifteen patients were treated. Mean follow-up was 80 months; no patient was lost to follow-up. One patient experienced pulmonary embolus that necessitated a 7-day intensive care unit stay. Four patients experienced early aseptic fistulization after the first injection, which led to surgical débridement and curettage. Five patients had transient inflammatory reaction with mild 38 degrees C fever, which was controlled with analgesic and antiinflammatory drugs. Eleven patients did not require surgery, and results at latest follow-up were considered to indicate complete healing (type 1 results) in nine and incomplete healing (type 2 results) in two. For type 1 results: Six patients received one injection, two received two injections, and one received three injections. For type 2 results: one patient received one injection, and one received three injections. CONCLUSION: A high rate of major local and general complications was encountered with use of direct fibrosing agent injection; the technique has been abandoned for treatment of ABCs.

Adolescent↗
PubMed1991

Aneurysmal bone cyst of the mandible.

The clinical features, radiological findings, microscopic examination and treatment of a case of aneurysmal bone cyst have been discussed. The histopathological examination is the only way to confirm the diagnosis of this interesting bone lesion which rarely affects the jaws.

Bone Cysts↗
PubMed1997

Aneurysmal bone cyst of the terminal phalanx of the thumb in a child.

We report a case of aneurysmal bone cyst (ABC) of the terminal phalanx of the thumb in a young boy, which was treated successfully with complete curettage with preservation of the growth plate. Three years later he was asymptomatic, with normal growth of the thumb, full range of movement and no evidence of recurrence. For this rare benign cyst in a child's hand, we recommend simple surgery to preserve the growth plate.

Bone Cysts, Aneurysmal↗
PubMed1995

[Juvenile bone cysts. Relative value and therapy results of cortisone injections].

Seventy-one children and adolescents with unicameral bone cysts were treated between 1982 and 1992. Fifty-one percent were in the proximal humerus, 34% in the femur, 10% in the tibia, and only 5% in other sites. Until 1986 biopsies were routinely done. Since then, only selected cases have been biopsied because of uncertainty in the radiological diagnosis. In 70% the diagnosis was a pathological fracture as a result of the cyst. Cortisone injections were introduced in 1982. It replaced currettage and bone grafting, which was the routine treatment until then. Ninety-two percent of the cysts healed or healed with residuals according to the Neer classification. Additional osteosynthesis was done in pathological fractures of the femoral neck. The results are achieved with little morbidity, and low cost which justifies continuation of this treatment protocol.

Adolescent↗
PubMed2005

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.

Adult↗
PubMed1992

Aneurysmal bone cyst. A review of 52 primary and 16 secondary cases.

Authors report on the results of treatment of 52 primary and 16 secondary aneurysmal bone cysts (ABC). ABC grow rapidly; 84% of them have already destroyed more than the half of the bone width at recognition. En bloc resection is preferred when the ABC is growing superficially and eccentrically and more than half of the bone width is intact. Careful curettage and bone grafting still remains the surgical method of choice in the majority of cases, when the ABC is more destructive and affects the subchondral bone of the joints. Segmental resection is only indicated when removal of the affected bone does not influence the function of the extremity. Superselective embolization of the cyst was performed in seven cases with excellent results. This method is suggested for ABC in certain locations inaccessible to surgical intervention, e.g., the pelvis, or to avoid excessive bleeding in hypervascularized tumors. In one case, however, an incomplete rebuilding of the ABC could only be achieved by the administration of calcitonin. The 16 cases of secondary ABC were observed mostly in association with osteoblastomas, giant-cell tumors, and osteosarcomas. The incidence of the secondary ABC was 23% in the whole ABC group but not more than 2-4% among the osteosarcomas and giant-cell tumors. Secondary ABC may confuse the histological and clinical diagnoses and that, especially in cases of osteosarcoma, may have fatal consequences.

Adolescent↗
PubMedDate not supplied

Residual bone cysts after Ilizarov treatment of relapsed clubfeet.

The Ilizarov technique is well established as an effective method of treating clubfoot deformities. A complication of this method is the development of cysts in the bones of the foot. The purpose of this study was to clarify the incidence, presentation, and etiology of these cysts. The radiographs of 17 feet that had undergone Ilizarov treatment for a clubfoot deformity were reviewed. In nine of the feet, discrete, well demarcated lucencies of bone were detected. They occurred in both tarsal and metatarsal bones, but most commonly in the base of the fifth metatarsal. Magnetic resonance imaging examination of two feet demonstrated a normal marrow signal. suggesting that the cysts are due to localized trabecular resorption with the space being filled with marrow fat.

Bone Cysts↗
PubMed2003

Aneurysmal bone cyst following tibial fracture: a case report.

A 14 year-old boy developed a tibial aneurysmal bone cyst (ABC) following a closed tibia fracture. The tumor formed in a site remote from the fracture and was not radiographically apparent until one year following the traumatic event. Most ABC's present due to fracture or pain, but this lesion was discovered during routine follow up films of the tibial shaft fracture. This case lends support to the debated theory that ABC's are reactive bone lesions and provides a rare radiographic glimpse at the lesion's early rate of development.

Adolescent↗
PubMed1999

Multilevel vertebral body replacement with a titanium mesh spacer for aneurysmal bone cyst: technical note.

A 64-year-old male presented with abrupt tetraparesis caused by a minor impact. Diagnostic images obtained on admission showed an aneurysmal bone cyst visible in the cervical spine at the fourth to upper sixth level, although the patient had been wearing a halo brace to diminish the symptoms. The vertebral body from the fourth to the sixth level was dissected, and this space was packed with a titanium cage filled with ceramic bone fragments mixed with fibrin glue. The combination of a titanium cage and an anterior locking plate can be made easily for anterior spinal fusion with enough rigidity to maintain the necessary space during fusion without any major support equipment. Both edges of the titanium mesh cage cut into the vertebral body to hold the cage in place. The other part, the titanium plate, makes it secure until ceramic bone fragments in the cage promote bony ingrowth for fusion.

Bone Cements↗