Osteoid osteoma is a benign lesion of bone generally diagnosed using conventional radiography or conventional tomography. Computed tomography can be used in difficult cases to localize a clinically suspected lesion. In this report we present two patients in whom an osteoid osteoma was detected using computed tomographic scanning; in an additional patient computed tomography failed to localize a...

Desmoplastic fibroma (DF) is a rare and locally aggressive intraosseous tumor with unknown etiology. The mandible is the common site of involvement in the maxillofacial region. However, it is believed that DF can arise in any bone of the body. A wide age distribution has been reported for DF occurrence, extending from birth to the sixth decade of life, with a peak incidence at 10 to 19 years of...

aggressive osteoblastoma (ao) is a benign osteoblastic tumor which is rare in the head and neck region. clinical and histological features are therefore overlap with other benign and low-grade malignant tumors. the aim of this article is to report and discuss the differential diagnosis of an aggressive osteoblastoma in the mandible. a 25-year-old male patient reported with pain and asymmetry on...

INTRODUCTION Recurrent goitre is a significant clinical problem among patients who have been operated due to benign lesions. An atypical localization of recurrent goitre - near the hyoid bone - poses additional difficulties as there are no data available on the clinical significance of such lesions. The aim of this study was to analyze if this unusual localization of recurrence is related to an...

Introduction: A keratocystic odontogenic tumor is a benign intra-bone mass originating from dental lamina or its residue. It represents 2–11% of jaw cysts, and has a slow but aggressive growth. The evaluation of molecular characteristics, immunohistochemistry, and genetic expression currently have no established classification regarding the evolution and pathophysiologic pattern of these lesion...

Parosteal bone tumors involving the small bones of the hand and the foot are rare. Their clinical and imaging features may imitate other bone tumors, leading to incorrect diagnosis and management. Histological examination of the lesion will establish the correct diagnosis. Bizarre parosteal osteochondromatous proliferation was first described in 1983 by Nora et al.1 In a report of 35 Mayo Clini...

Aneurysmal bone cyst (ABC), especially in the ribs, is a rare disease, considering to be a benign lesion which occurs mostly in children and young adults. This case, however, concerns a 46-year-old female patient, with complaints of pain and palpable mass in the right thoracic wall, who was diagnosed to have ABC originating from the rib demonstrated by radiological examinations, aspiration biop...

Desmoplastic ameloblastoma (DA) is a relatively rare histological variant of ameloblastoma with specific clinical, radiological, and histological features. This tumor is more commonly seen in the anterior region of jaws as a mixed radiopaque-radiolucent lesion resembling benign fibro-osseous lesions. Histologically, DA is characterized by small nests and strands of "compressed" odontogenic epit...

UNLABELLED Patient: Female, 32. FINAL DIAGNOSIS Chondroblastoma. SYMPTOMS Pain. MEDICATION -. CLINICAL PROCEDURE -. SPECIALTY Oncology. OBJECTIVE Unusual clinical course. BACKGROUND 1% of all bone tumors are Chondroblastomas. Chondroblastomas, initially considered to be an osteoclastoma variant are benign, cartilaginous tumors which usually occur in the epiphysis of long bones, es...

BACKGROUND Epithelioid hemangioma (EH) is a rare benign vascular lesion of soft tissue and bone, characterized by endothelial cells with epithelioid or histiocytoid appearance. Though tubular bones, flat bones, vertebra and short bones are common sites for this lesion, the epiphyseal involvement is extremely rare. We present an unusual case of EH of the distal femur in a young boy. CASE REPOR...