ABSTRACT
The study was conducted to understand the clinical algorithm of benign bone tumours. Correlation was done by clinical presentation with radiological features and histopathology features. The osteogenic tumours are considered as one group because their common characteristic feature is the production of an osteoid or bone matrix by the tumour cells. The cartilaginous tumours have the characteristic feature of production of cartilage matrix. AIM: We have reported 62 cases of bone tumours during the study period of 5 years in the Department of Pathology, Thoothukudi Medical College, India. The cases were thoroughly studied by histopathology and 28 cases were diagnosed as benign tumours among which 8 cases were benign osteoid producing and 20 cases were diagnosed as benign cartilage producing tumours conclusively. The Histopathology diagnosis was correlated with the Radiological features. Methods: We have reported 62 cases of bone tumours during the study period of 5 years in the Department of Pathology, among which 28 cases were diagnosed as benign bone tumours. A total of 8 cases were osteoid producing and 20 cases were cartilage producing tumours conclusively. All the relevant clinical data of the patients were searched from the ward records. The data was stored in the Department computer server was very much useful in the study. The initial step in the assessment of patients with bone tumours is a good medical history, including age, gender, type and duration of symptoms, localization of the mass, and presence of a history of trauma. CT scan was useful in osteoid lesions. MRI Scan played a crucial role in cartilage producing tumours. Tests to assess general health included a complete blood count , differential count , tests for serum electrolytes including calcium, magnesium, phosphate, liver function studies, blood group typing, a coagulation profile, tests for hepatitis and human immunodeficiency virus infection were taken and recorded. Results: The total number of benign bone tumours reported during the 5 years period was 28 cases,. In benign bone tumours osteochondroma was the most common neoplasm. CT scan established the best choice in studying cortical lesions and nidus in osteoid osteoma. CT can identify the calcification of cartilage. In cases of cartilage producing tumours, the T2 weighted MRI with high signal intensity with a lobulated outline made a useful role. MRI can delineate the medullary extent. Multinucleated giant cells were seen in sections of chondroblastoma. Histopathology provided the final conclusive diagnosis. Conclusion: Benign bone tumours frequently pose a diagnostic challenge for general surgical pathologists. Accurate pathologic diagnosis requires careful clinical, radiological and histopathological correlation. The most common benign bone tumour occurring in children is osteochondromas, representing 10 to 15% of all bone tumours and 20 to 50% of all benign bone tumours.
ABSTRACT
Background: Bone tumours are comparatively uncommon among wide array of lesions and pose a diagnostic problem as they constitute a small portion of diagnostic experience among pathologist. Aims & Objective: To study the histopathological features of bone lesions and their correlation with age of presentation, site and type of lesion. Material and Methods: The present study was carried out at a tertiary care center from October 2003 to January 2006. A total of 79 bone lesions were analyzed. A detail clinical and radiological history was taken. Bone biopsy was performed by either percutaneous method with needle/drill or Open surgical biopsy. If attached soft tissue was also received, bony tissues were put for decalcification (10% nitric acid) and soft tissue was immediately fixed into 10 % formalin and processed by paraffin embedding. Sections were stained by haematoxylin and eosin stain. Results: Incidence of non-neoplatic and benign neoplastic lesions was 68.40% while that of malignant lesion was only 20.22%.Younger patients (58.24%) and males (59.49%) were more commonly affected. Amongst non-neoplastic lesions, tuberculous lesions (17.72%) were commonest while exostosis (15.19%) and osteosarcoma and chondrosarcoma were common benign and malignant neoplastic lesions respectively. Overall most common bone involved was femur. In tuberculous lesions, vertebrae were commonly involved. Osteolytic lesions were more common. Metaphysis was the commonest site. Conclusion: Though bone tumours are less common lesions and pose a diagnostic problem, if viewed in perspective of clinico-radiology and histopathology, a correct diagnosis can be reached.
ABSTRACT
Introdução: Osteoblastoma é um tumor benigno rara do osso, ocorrendo geralmente em vértebras, ossos longo tubulares. Sua ocorrência na região craniofacial é extremamente rara, especialmente nas áreas nasal e paranasal. Relato do Caso: Nós relatamos um caso atípico de osteoblastoma do seio maxilar com envolvimento de palato duro e estruturas nasal. Características clínicas e radiológicas foram inconclusivas, com padrão de tomografia computadorizada (TC) atípicos que foi sugestiva de vários lesões fibro-ósseas (LFO) como a displasia fibrosa, displasia cementificante, fibroma cemento ossificante. Exames histopatológicas revelou osteoblastoma. Comentários Finais: Dada as imagens de TC atípicas e o enorme envolvimento facial, diagnósticos diferenciais de tais lesões devem ser cuidadosamente avaliados sobre aparência radiográfico e critérios histológicos.
Introduction: Osteoblastoma is a rare benign tumor of the bone, usually occurring in vertebrae and in long tubular bones. Its occurrence in the craniofacial region is extremely rare, especially in the nasal and paranasal areas. Case Report: We report an atypical case of osteoblastoma of the maxillary sinus with involvement of hard palate and nasal structures. Clinical and radiological features were inconclusive, with atypical computed tomography (CT) pattern that was suggestive of various fibrous osseous lesions (FOL) like fibrous dysplasia, cementifying dysplasia, cemento-ossifying fibroma. Final Comments: Given the anomalous CT features and massive facial involvement, differential diagnoses of such lesions must be carefully evaluated regarding radiographic appearance and histological criteria.