A case of osteold osteoma was presented because of its rarity in number particularly in localization of tumor, that is, subperiosteal in position. Also we could treat the patient successfully by surgical intervention and the removed specimen preserved beautifully all the character and contour of the tumor grossly and microsoopically.
Humans ; Osteoma ; Osteoma, Osteoid

No abstract available.
Osteoma, Osteoid*

No abstract available.
Osteoma, Osteoid* ; Spine*

No abstract available.
Osteoma, Osteoid* ; Tetracycline*

No abstract available.
Diagnosis* ; Osteoma, Osteoid*

No abstract available.
Hip ; Hip Joint ; Osteoma, Osteoid

Osteoid osteoma can occur in all parts of the skeletal system. More than half occur in lower extremity and rare in wrist.Clinically pain is almost the only symptom worse at night and which is characterized by a rapid improvement by NSAID. We report the cases of osteoid osteoma which shows the characteristic symptoms and got a good results with appropriate imaging work up and surgical treatment.
Lower Extremity ; Osteoma, Osteoid* ; Wrist*

No abstract available.
Child* ; Hip* ; Humans ; Osteoma, Osteoid*

PURPOSE: To evaluate the utility of preoperative nidus localization guided by computed tomography(CT). MATERIALS AND METHODS: In the light of clinical, radiographic, and imaging findings, osteoid osteoma was suspected in all ten patients studied. An osteoid osteoma of the tibia was present in seven cases, and of the femur in three. During the 24 hours preceeding surgery, a small hole was drilled directly over the nidus with a 15gauge Ostycut bone biopsy needle, using CT for control and guidance. The hole and needle tract were stained with Gentian violet and GE 9800 and Hi Speed Advantage CT (GE) were used to obtain both 2D and 3D images. RESULTS: Each osteoid osteoma was in the cortex of the bone, nidi ranged in size from 10x6x6 to 40x7x9mm and the sclerotic area around each varied in size between 150x18x14 and 50x15x12mm. Marking was successful on the first attempt in eight cases, on the second attempt in one case and on the third attempt in one case. The average time per marking attempt was 15 minutes. In the operating field, stained marking on the cortex was easily found inall cases. With the marking it was possible to excise only as much of the bone as necessary and none of the ten patients suffered complications either during or after the procedure. The diagnosis of osteoid osteoma was histopathologically confirmed in all patients. CONCLUSION: CT guided nidus marking of an osteoid osteoma assured precise localization during surgery ; bone resection was therefore minimal and the time required for surgery was reduced. The procedure is a simple, safe, effective method for precise and easy nidus excision.
Biopsy ; Diagnosis ; Humans ; Needles ; Osteoma ; Osteoma, Osteoid* ; Tibia ; Viola

Osteoid osteoma (OO) is a benign osteoblastic tumor. Its curative treatment is complete removal of the nidus, where intraoperative localization of the nidus governs clinical results. However, treatment can be difficult since the lesion is often invisible over the bony surface. Accordingly, establishment of an ideal less invasive surgical strategy for spinal OO remains yet unsettled. We illustrate the efficacy of a computed tomography (CT)-based navigation system in excising OO located adjacent to the facet joint of spine. In our 2 cases, complete and pin-point removal of the nidus located close to the facet joint was successfully achieved, without excessive removal of the bone potentially leading to spinal instability and possible damage of nearby neurovascular structures. We advocate a less invasive approach to spinal OO, particularly in an environment with an available CT-based navigation system.
Osteoblasts ; Osteoma, Osteoid* ; Spine* ; Zygapophyseal Joint*