Bone Cysts, Aneurysmal ; Humans ; Patella

Aneurysmal bone cysts are rare entities which causes expansile and destructive bone lesions characterized by reactive proliferation of connective tissue. They usually grow rapidly with hypervascularity. In clinical practice they can be easily misdiagnosed due to the rare occurance and having no such typical findings as radiologically. Most cases have uncommon pain symptoms, but rarely, if fractures occur, neurological findings can be seen and the surgical treatment, if needed, could be difficult. We will discuss our evaluations to two cases that we experienced in our clinic in this report.
Bone Cysts, Aneurysmal* ; Connective Tissue ; Sacrum ; Spine*

OBJECTIVETo investigate the clinicopathologic characteritics and prognosis of telangiectatic osteosarcoma.

METHODSThe clinical and pathological data of 14 cases of telangiectatic osteosarcoma were reviewed.

RESULTSMost of these patients were male (9/14). The mean age was 23 years. Most tumors were located in the lower extremities (10/14). The roentgenograms showed a large purely osteolytic lesion. Both medullar and cortical bone were extensively destroyed. The gross specimen showed cystic cavities separated by septa, similar to an aneurismal bone cyst. Microscopically, the septa contained anaplastic cells. A few fine, lace-like osteoid were scattered among these sarcomatous cells. 12 patients were followed-up from 6 months to 84 months. Of seven patients who had developed pulmonary metastasis, six patients died and one alive with lung metastasis. The remaining five patients survived after operation.

CONCLUSIONSDifficulties in making an early diagnosis and highly malignant of this disease might be the important factors that affect the prognosis of telangiectatic osteosarcoma.

Bone Cysts ; diagnosis ; Bone Cysts, Aneurysmal ; diagnosis ; Humans ; Male ; Middle Aged ; Sphenoid Bone ; pathology

Aneurysmal bone cysts are lytic lesions that have been described in virtually every portion of the skeleton but most commonly occur as solitary lesions in the metaphyseal portions of long bones. One fifth of aneurysmal bone cysts occur in the spine where they most frequently involve the posterior elements. In the spine, aneurysmal bone cyst have been reported to occur in the lower thoracic and lumbar regions, but their occurrence in the cervicodorsal area is uncommon. In this case, the second cervical vertebral body and posterior elements are affected. Fortunately, the lesion didn't invade into the spinal canal. The main symptom on admission was pressure pain, tenderness and motion limitation of the cervical spine. We removed the lesion involving posterior elements of second cervical spine and used horse-shoe shaped pediatric C-D device for occipito-cervical fixation. The clinical symptoms were resolved after operation. The clinical, radiologic, operative and pathological findings are reported and the corresponding literature are reviewed.
Aneurysm* ; Bone Cysts* ; Bone Cysts, Aneurysmal ; Lumbosacral Region ; Skeleton ; Spinal Canal ; Spine*

Aneurysmal bone cysts are uncommon bony lesions that usually occur in the metaphyseal region of the long bones in adolescents. Approximately 20% of the aneurysmal bone cysts occur in the spine, predominantly in the lumbar region. These lesions commonly arise from the posterior elements(ex, spinous process, laminae) and occasionally invade the pedicles and the vertebral body. We experienced a case of aneurysmal bone cyst on the entire 5th cervical vertebra(vertebral body, pedicle, laminae, spinous process and transverse process). We perfomed C5 corpectomy and fusion with ORION plate and autologous bone graft on C4-5-6, and C5 total laminectomy with gross total mass removal and posterior fusion with Heid lateral plate system and autologous bone graft and wiring on C4-5-6. The patient showed good recovery. We report a rare case of aneurysmal bone cyst on the whole involved 5th cervical vertebra
Adolescent ; Aneurysm* ; Bone Cysts* ; Bone Cysts, Aneurysmal ; Humans ; Laminectomy ; Lumbosacral Region ; Spine* ; Transplants

Aneurysmal bone cysts (ABCs) are benign and rapidly expanding bone destructive lesions of any bone. They are commonly localized in the metaphysis of long bones, whereas skull base ABCs are rare. We report a case of a 21-year-old man who had been misdiagnosed as chordoma and undergone surgery. However, histopathological examination revealed it to be an ABC.
Aneurysm* ; Bone Cysts* ; Bone Cysts, Aneurysmal ; Chordoma* ; Cranial Fossa, Posterior* ; Humans ; Magnetic Resonance Imaging ; Skull Base ; Sphenoid Bone* ; Young Adult

A 9-year-old girl visited our hospital, complaining of a rapid-growing and rigid swelling on the left posterior mandibular area. Panoramic radiograph showed a moderately defined multilocular honeycomb appearance involving the left mandibular body. CT scan revealed an expansile, multilocular osteolytic lesion and multiple fluid levels within cystic spaces. Bone scan demonstrated increased radiotracer uptake and angiography showed a highly vascularized lesion. The lesion was suspected as aneurysmal bone cyst (ABC) and preoperative embolization was performed, which minimize the extent of operation and the surgical complication. The lesion was treated by surgical curettage and lateral decortication with repositioning. No additional treatment such as a surgical reconstruction or bone graft was needed. Early diagnosis of ABC is very important and appropriate treatment should be performed considering several factors such as age, surgical complication, and possibility of recurrence.
Aneurysm ; Angiography ; Bone Cysts ; Bone Cysts, Aneurysmal ; Child ; Curettage ; Early Diagnosis ; Embolization, Therapeutic ; Humans ; Mandible ; Recurrence ; Transplants

Aneurysmal bone cyst is an uncommon tumor-like lesion of the bone containing distended vascular channels or cvities filled with blood. These cases, twenty-nine old female, eighteen years old male and female patients complained of pain and swelling in Rt. Medial aspect of proximal foot, Lt. proximal tibial portion and Rt. entire talar aspect of foot, respectively. Roentgenograms showed ballooned-out distensions and eccentric buldging of those lesions and soapbubble like multiple radiolucent cystic changes within interiors of the bones at talar neck, Proximal tibia and entire talus. Those cases were treated with radical curettage and autogenous iliac bone grafts and snugly fitted long leg casts in functional positions, respectively. On 2nd postoperative day, Cast windows were made and daily sterile dressings were carried out until complete wound healing. Pathological Examinations grossly and Microscopically revealed typical Aneruysmal bone cysts in all 3 cases. All-Patients had good therapeutic recovery within about seven weeks post-operatively.
Aneurysm ; Bandages ; Bone Cysts ; Bone Cysts, Aneurysmal ; Curettage ; Female ; Foot ; Humans ; Leg ; Male ; Neck ; Talus ; Tibia ; Transplants ; Wound Healing

The Solid variant of the aneurysmal bone cyst is clinically important, because its solid composition is comparable to that observed in osteosarcoma or osteoblastoma, presenting difficulty for the correct diagnosis. The fluid-fluid level, which is a common sign of the conventional aneurismal bone cyst, is not apparent in radiographs of the solid type. These cysts were localized, equally within the whole spine as compared to most conventional aneurysmal bone cysts in which are localized to the posterior neural arch of the cervical spine. In this particular patient case, a young male aged 11.5 years presented with lower back pain and radiating pain which was misdiagnosed as a malignant bone tumor. Surgical intervention was considered and the incisional biopsy and laminectomy were conducted due to the low possibility of malignancy. We present this case and literature reviews with radiological and pathological findings as an example of the differential diagnosis of malignant tumors.
Aged ; Aneurysm ; Biopsy ; Bone Cysts ; Bone Cysts, Aneurysmal ; Diagnosis, Differential ; Humans ; Laminectomy ; Low Back Pain ; Male ; Osteoblastoma ; Osteosarcoma ; Spine