CT and MRI of aggressive osteoblastoma of thyroid cartilage

Breast osteoblastoma and recurrence after resection: Demonstration by color Doppler ultrasound

Osteoblastoma is a rare benign primary bone tumor, which occurs in any part of the skeleton. Extraskeletal osteoblastoma is rather rare. We presented an extremely rare case of extraskeletal osteoblastoma located in the breast. The tumor recurred 7 months later after resection and transformed to aggressive osteoblastoma. The histopathological features, ultrasonic manifestations and ultrasonic differential diagnoses of the primary and recurrent tumors were discussed. The recommended treatment of the tumor is surgical excision. Due to its tendency of recurrence and potential malignant transformation, adequate resection and careful follow up is essential.

Osteoblastoma of the thyroid cartilage treated with voice preserving laryngeal framework resection

OBJECTIVES/HYPOTHESIS

Osteoblastoma is a slow-growing, locally destructive benign bone neoplasm, rarely occurring in the laryngeal cartilage. We present the case of a professional voice user diagnosed with laryngeal osteoblastoma after microdirect laryngoscopy and endoscopic biopsy. Her treatment required a unique operation, with elements of partial laryngectomy and maintenance of vital endolaryngeal soft tissues, in order to optimize vocal outcome.

Aggressive (epithelioid) osteoblastoma arising in soft tissue

Aggressive (epithelioid) osteoblastoma arising in soft tissue has never been described. It is important to differentiate this benign osteoblastoma, a potentially locally aggressive tumor, from extraskeletal osteosarcoma. This report describes an aggressive (epithelioid) osteoblastoma arising in a focus of heterotopic ossification in the axilla of a 21-year-old man.

Extraosseous osteoblastoma of larynx presenting with acute airway obstruction

Objective:

We report the case of an osteoblastoma of the larynx arising from the vocal fold, which presented with acute airway obstruction and cardiopulmonary arrest.

Method:

The histopathological findings, differential diagnoses and a novel method of treating laryngeal osteoblastoma, using transoral laser therapy, are discussed.

Results:

Benign osteoblastoma is a rare primary bone tumour usually presenting in young patients in the spine and sacrum. Its occurrence in the larynx is very rare, with only three similar case reports in the literature, none involving tumour arising from the vocal fold. Differential diagnoses must be considered and excluded using both histopathological and clinical features. Once the diagnosis is confirmed, successful treatment is achieved with surgical excision.

Conclusion:

Osteoblastoma of the larynx is rare, and the clinical features can vary with the anatomical site of the lesion. The recommended treatment is surgical excision which, if available, may be achieved by transoral laser microsurgery. Due to its potential rapid growth, careful follow up is essential in order to detect recurrence.

Osteoblastoma of the larynx: a case report

We describe a unique case of an osteoblastoma in the cricoid cartilage of a 50-year-old man who presented with hoarseness and progressive dyspnea. Panendoscopic examination revealed a reddish tumor at the left side of the cricoid cartilage. Computed tomography (CT) imaging showed a sclerotic lesion involving the cricoid cartilage, protruding in the airway lumen. The tumor was removed via an external procedure. Histology confirmed the diagnosis of osteoblastoma.