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PubMedDate not supplied

Aneurysmal bone cyst of the orbit: a case of rare location and review of the literature.

Aneurysmal bone cysts (ABCs) are benign fibrosseous lesions, very rarely occurring in the orbit. Seventeen cases of ABCs involving the orbit were reported in the literature. MRI pictures of a 7-year-old female patient with ABC involving the orbit are presented here. The clinical findings were left-sided painless proptosis, diplopia, papilledema and partial loss of the vision. MRI study showed a well-circumscribed mutliloculated expansile lesion of the orbital roof. We additionally make a review of the literature for these rare lesions.

Bone Cysts, Aneurysmal↗
PubMedDate not supplied

Aneurysmal bone cyst treated by high-energy, low-dose radiation therapy: a case report.

Aneurysmal bone cysts (ABC) are frequently treated surgically, but recurrence is not uncommon and surgery is hazardous when the lesion is large and adjacent to the growth plate. High-energy, low-dose radiation to an 8-year-old girl with ABC of the distal tibia was found to be successful, with no recurrence during the five-year follow up. No complications have ensued, and excellent function has been sustained. Further evaluation of this radiation treatment is important for similar situations in which surgical excision of ABC may involve high risk.

Bone Cysts↗
PubMed1987

[Spontaneous regression of an aneurysmal bone cyst of the vertebrae after partial excision. Bibliographic review].

A case of a lumbar aneurysmal bone cyst is presented in a 5 year-9 month old girl. The characteristics of this tumor are described, specifically in the spinal area, with particular reference to the diagnostic and therapeutic difficulties referred, taking into account the existing bibliography. The partial resection has been curative, as it has been frequently written about in publication worldwide and which suggest that surgery does not have to be aggressive in unapproachable cases and that radiotherapy is unnecessary.

Adult↗
PubMed1976

Megavoltage therapy in patients with aneurysmal bone cysts.

Three adolescent patients with similar destructive lesions involving the pelvis were found to have unresectable aneurysmal bone cysts. All 3 patients appear to have permanent control and good function from 2 to 7 years after megavoltage irradiation with 4,000 rads. No complications or late sequelae have occurred, and follow-up radiographs demonstrate reconstitution and calcification of the affected bone. A slightly lower dose may be just as effective in controlling such lesions.

Adolescent↗
PubMed1991

[MR tomography of aneurysmal bone cyst].

The preoperative findings of magnetic resonance imaging (MRI) in six histology-proven aneurysmal bone cysts (ABC) are examined and compared with previous publications concerning MRI of ABC. The signal intensities differ considerably, and not all of our cases conform with the literature data. They can be summarised in three different subheadings: one form that is very inhomogeneous in T1- and T2-weighting, with fluid-fluid levels in the cystic spaces; one intermediate form without fluid-fluid levels, which is inhomogeneous only in T2-weighted images; and finally, an unusual form of ABC that has homogeneous low signal both in T1- and T2-weighting, and which has not been described in literature so far.

Adolescent↗
PubMed1989

Spontaneous healing of aneurysmal bone cysts. A report of three cases.

We report three cases of spontaneous healing of aneurysmal bone cysts (ABC). In one case histological material was obtained after resection of the already ossified expansile mass discovered as a lytic lesion seven months previously. In the two other patients, spontaneous ossification of a radiologically presumed ABC in the lytic and expansile phase was observed after nine and seven months respectively. The healed lesions have remained stable at 12, 32, and 36 months respectively. These findings suggest that when the diagnosis can be made with confidence, and the lesion is in a location and at a stage that does not entail any risk of fracture or compression, expectant management should be considered. Our three patients were aged 22, 19 and 18 years, older than usual for developing ABC. This is also true for many of the few other reported cases of spontaneous or almost spontaneous healing and suggests that ABC has a greater tendency to stabilise in older patients.

Adolescent↗
PubMed1977

Scaglietti's method for conservative treatment of simple bone cysts with local injections of methylprednisolone acetate.

The results of 30 consecutive cases of simple bone cysts treated conservatively by intracystic injections of methylprednisolone acetate (MPA) according to the method of Scaglietti are reported. The injections were given under general or local anaesthesia in doses of 80-200 mgs repeated every 2 months up to a total of 2 or 3 injections, rarely more. The minimum period required for achieving a result is 6 months; but there is a continuation of radiographic improvement for 1 to 2 years. There is complete radiographic cure in about half the cases; in the others there is a substantial improvement which makes surgery unnecessary. We have used this method systematically for 3 years, and out of 42 cases only one required operation because of a displaced subtrochanteric fracture. There was a partial recurrence in one case after apparent radiographic cure. The patients' age does not seem to affect the result but we gained the impression that the effect of MPA is quicker and more reliable in younger patients. Although we do not understand the mechanism of cure in this method it has undoubted advantages over surgery.

Adolescent↗
PubMed2003

[Aneurysmal bone cysts of the nasal cavity. Description of a case and review of the literature].

INTRODUCTION: Aneurysmal bone cyst (ABC) are benign tumor-like lesions of the bone that occur at any age with a slight female predominance. The most common sites are long bones and vertebrae bodies. MATERIALS AND METHODS: We report a case of 54 year-old man with nasal respiratory difficulty and a previous history of nasal fracture. RMN and TC-scan showed a voluminous nasal lesion, which was surgically removed. Tissue sample was formalin fixed (10%) and routinely processed to paraffin after decalcifying treatment (Osteodec, Bioptica). Section were stained with haematoxilin-eosin. RESULTS: At histological level the lesion was characterized by multilocular cyst-like spaces filled with erythrocytes separated by connective septa lacking the smooth muscle walls and endothelial lining of normal vessels. Histological features are consistent with a diagnosis of ABC. DISCUSSION: We report a case of ABC of nasal cavity. The previous history of nasal fracture and the fact that pre-existing or concurrent were not found lead us to suppose a relationship between the fracture and ABC. Teleangiectatic osteosarcoma, fibrous dysplasia and giant-cell tumor were excluded according to clinical and morphological features.

Adolescent↗