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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: oral cavity,Ewing's Sarcoma,Extra Skeletal
- چکیده:
- چکیده انگلیسی: Ewing's sarcoma is an uncommon malignancy primarily affecting bone tissue and usually occurs in adolescents and young adults. This paper reports a rare case of extra-skeletal Ewing’s sarcoma of the oral cavity soft tissue. In the clinical examination, a mass of 1.5×1.5 cm in diameter was observed in the right mandibular vestibule. Radiographic examination revealed no involvement of mandible. Microscopically, the tumor was composed of malignant small round cell tumor that exhibited immunoreactivity for CD99. The patient was subjected to enucleation surgery under local anesthesia, prognosis was excellent, and the patient remained symptom-free after 13 months.
- انتشار مقاله: 21-01-1397
- نویسندگان: Hassan Mir Mohammad Sadeghi,Fatemeh Mashhadi Abbas,Nasim Taghavi,Nazan Baharnoori
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dental Materials and Techniques
- نوع مقاله: Journal Article
- کلمات کلیدی: osteosarcoma,Jaw,Chondroblastic Osteosarcoma
- چکیده:
- چکیده انگلیسی: Osteosarcoma (OS) is a malignant tumor that induces formation of osteoid or immature bone and rarely occurs in maxilla. Maxillofacial OSs are reported to occur in the third to fifth decades that is 1-2 decades later than the mean age for OS of long bones. The present case is a 62-year-old man with facial asymmetry and pain in his left upper jaw. Intraoral examination showed a bony hard, tender swelling about 50 x 60 mm in diameter in the maxillary alveolar ridge extending unilaterally from the maxillary incisor to the molar region which had expanded the buccal and palatal aspects of alveolar ridge. Computed tomography showed a hyper dense mass in the left maxilla extending to maxillary sinus. The diagnosis of OS was confirmed by histopathologic evaluation. Following the initial surgery, a local recurrence developed in the facial region of the patient within 18 months. Radiographic evaluation of OS of maxilla is important for diagnosis. Early diagnosis and radical surgery are the keys to increasing survival rate.
- انتشار مقاله: 27-02-1397
- نویسندگان: Sedigheh Bakhtiari,Robab Noormohammadi,Fatemeh Mashhadi Abbas,Kosar Rezaei Far
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dental Materials and Techniques
- نوع مقاله: Journal Article
- کلمات کلیدی: Hemangioma,lip,Cellular hemangioma
- چکیده:
- چکیده انگلیسی: Hemangioma, which is a rife benign proliferative lesion with vascular tissue origin, is the most common vascular anomaly of infancy. Cellular hemangioma is one type of these tumors, known as the vascular channel formation of endothelial cells. This report describes a 34-year old man with an exophytic lesion on the lower lip , firm, dome shape ,smooth surface with mild keratosis who came to us two months ago ; histopathologic finding showed a relatively rare subtype of hemangioma, cellular hemangioma ,which characterized by the potential for recurrence and cellular immaturity . Among hemangioma subtypes, the most common are cavernous and capillary hemangiomas; a relatively rare subtype is cellular hemangioma, characterized by the potential for recurrence and cellular immaturity. CH most commonly involved parotid gland, but may also occur internally in the oral mucosa in infancy and early childhood. Mmucocele and pyogenic granuloma were considered in the differential diagnosis for our case.
- انتشار مقاله: 19-01-1397
- نویسندگان: Mahin Bakhshi,Fatemeh Mashhadi Abbas,Kosar Rezaei Far
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Veterinary Surgery
- نوع مقاله: Journal Article
- کلمات کلیدی:
- چکیده:
- چکیده انگلیسی: Objectives- To assess the ectopic bone formation in canine masseter muscle following the implantation of the natural bovine bone minerals (NBM) loaded with canine mesenchymal stem cells (MSCs). Design- Experimental study. Animals- four mongrel dogs. Procedures- Tripotent MSCs isolated from the canine bone marrow were loaded onto the NBM sponges and allowed to adhere. The cell-loaded scaffolds were then implanted in parallel with cell-free control scaffolds in masseter muscles of four mongrel dogs. Eight weeks after, the animals were sacrificed and the ectopic bone formation in implantation site was studied using the sections prepared from the parts of the muscle containing the implants. Furthermore, the amount of bone formation in two studied groups was quantified using Image-Pro Plust software. Results- The implants from the both groups were appeared to be encapsulated by fibrous tissue in implantation site which included some trabecular bone containing osteocyte and osteoblast. There were no indications of inflammation and foreign body reaction, nor were there any indications of cartilage tissue formation. In contrast to control, in MSCs group, lamellar bone was observed in some area. More importantly, in cell loaded scaffolds more amount of bone was formed compared to that of control cell free scaffolds (P<0.05). Conclusion and Clinical Relevance- Taken together it seems that in vivo bone forming capacity of the NBM sponges would be improved by loading it with MSCs.
- انتشار مقاله: 14-05-1386
- نویسندگان: Mohamadreza Baghaban Eslaminejad,Mohammad Jafarian,Arash Khojasteh,Fatemeh Mashhadi Abbas,Mohammad Mehdi Dehghan,Bahar Houshmand
- مشاهده