1.Recurrent ameloblastic fibroma: a report of case.
Kyoo Sik KIM ; Myung Jin KIM ; Hyung Kook PARK ; Yu Jin SHIM ; Gi Cheol LEE ; Soon Seop WOO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1991;17(4):61-66
No abstract available.
Ameloblasts*
;
Fibroma*
2.Recurrent ameloblastic fibroma: a report of case.
Kyoo Sik KIM ; Myung Jin KIM ; Hyung Kook PARK ; Yu Jin SHIM ; Gi Cheol LEE ; Soon Seop WOO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1991;17(4):61-66
No abstract available.
Ameloblasts*
;
Fibroma*
3.Polarity of ameloblasts and odontoblasts and their related regulators.
Yi-Jun ZHOU ; Guang-Xing YAN ; Cang-Wei LIU ; Xue ZHANG ; Yue HU ; Xin-Qing HAO ; Huan ZHAO ; Ce SHI ; Hong-Chen SUN
West China Journal of Stomatology 2019;37(3):309-313
The polarity of ameloblasts and odontoblasts is crucial for their differentiation and function. Polarity-related molecules play an important role in this process. This review summarizes the process of polarity formation of ameloblasts and odontoblasts and their related regulators.
Ameloblasts
;
Cell Differentiation
;
Odontoblasts
4.A Case Report Of Ameloblastic Carcinoma On The Mandible.
Dong Mok RYU ; Yong Il JEON ; Sang Chull LEE ; Yeo Gab KIM ; Baek Soo LEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2002;28(3):226-230
Carcinomas derived from ameloblastomas have been designated by a variety of terms, including malignant ameloblastoma, ameloblastic carcinoma, metastatic ameloblastoma, and primary intra-alveolar epidermoid carcinoma. The term of ameloblastic carcinoma is differentiated from the term of malignant amelblastoma and is defined as an ameloblastoma in which there is histologic evidence of malignancy in the primary tumor or the recurrent tumor(or metastasis), regardless of whether it has metastasized. The well-documented and adequately followed cases are currently lacking and this report described an instance of ameloblastic carcinoma with good result after treatment and review of literature.
Ameloblastoma
;
Ameloblasts*
;
Carcinoma, Squamous Cell
;
Mandible*
6.Ameloblastic carcinoma of the mandible.
Keun Min KIM ; Eui Hwan HWANG ; Jae O CHO ; Sang Rae LEE
Korean Journal of Oral and Maxillofacial Radiology 2001;31(2):109-115
The ameloblastic carcinoma is an extremely rare, aggressive odontogenic neoplasm of the jaws. It is described as an ameloblastoma in which there is histologic evidence of malignancy in the primary or recurrent tumors, regardless of whether it has metastasized. We report an aggressive case of ameloblastic carcinoma of the mandible. A 68-year-old man with the complaint of the left facial swelling and intermittent pain was referred to our hospital. Serial images of panoramic radiograph, computed tomograph, and magnetic resonance imaging showed an ill-defined destructive radiolucent lesion of the left mandible. The lesion had typically aggressive behavior with extensive local destruction of bone and extended to the adjacent soft tissues. Bone scan revealed increased uptakes in the left mandibular body and ramus regions. Histological features were generally resembled with those of an ameloblastoma but with cytologic features of epithelial malignancy.
Aged
;
Ameloblastoma
;
Ameloblasts*
;
Humans
;
Jaw
;
Magnetic Resonance Imaging
;
Mandible*
7.Ameloblastic carcinoma of the mandible.
Keun Min KIM ; Eui Hwan HWANG ; Jae O CHO ; Sang Rae LEE
Korean Journal of Oral and Maxillofacial Radiology 2001;31(2):109-115
The ameloblastic carcinoma is an extremely rare, aggressive odontogenic neoplasm of the jaws. It is described as an ameloblastoma in which there is histologic evidence of malignancy in the primary or recurrent tumors, regardless of whether it has metastasized. We report an aggressive case of ameloblastic carcinoma of the mandible. A 68-year-old man with the complaint of the left facial swelling and intermittent pain was referred to our hospital. Serial images of panoramic radiograph, computed tomograph, and magnetic resonance imaging showed an ill-defined destructive radiolucent lesion of the left mandible. The lesion had typically aggressive behavior with extensive local destruction of bone and extended to the adjacent soft tissues. Bone scan revealed increased uptakes in the left mandibular body and ramus regions. Histological features were generally resembled with those of an ameloblastoma but with cytologic features of epithelial malignancy.
Aged
;
Ameloblastoma
;
Ameloblasts*
;
Humans
;
Jaw
;
Magnetic Resonance Imaging
;
Mandible*
8.The Role of Postoperative Radiotherapy for Ameloblastic Carcinoma of the Mandible: Case Report.
Won Taek KIM ; In Kyo CHUNG ; Yong Kan KI ; Ji Ho NAM ; Byung Hyun GWON ; Dong Won KIM
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2005;23(3):194-200
An ameloblastic carcinoma is a very rare odontogenic malignant tumor, which sometimes have a benign clinical nature, but typically have aggressive features, with large ulcerative lesion and extensive local destruction. These clinical characteristics make the complete surgical removal of a tumor difficult. As a consequence, a poor prognosis may result due to local recurrence and distant metastasis. For this reason, it is important to consider adjuvant therapies for high-risk ameloblastic carcinoma patients. Here, the case of a recurrent ameloblastic carcinoma that occurred in the mandible after primary surgery is reported. The lesion was treated with further local excision, followed by postoperative radiotherapy. Also, a few remarks on the role of postoperative radiotherapy in patient with ameloblastic carcinoma have been made from a review of the current literatures on the treatment of this type of lesion.
Ameloblasts*
;
Humans
;
Mandible*
;
Neoplasm Metastasis
;
Prognosis
;
Radiotherapy*
;
Recurrence
;
Ulcer
9.The Role of Postoperative Radiotherapy for Ameloblastic Carcinoma of the Mandible: Case Report.
Won Taek KIM ; In Kyo CHUNG ; Yong Kan KI ; Ji Ho NAM ; Byung Hyun GWON ; Dong Won KIM
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2005;23(3):194-200
An ameloblastic carcinoma is a very rare odontogenic malignant tumor, which sometimes have a benign clinical nature, but typically have aggressive features, with large ulcerative lesion and extensive local destruction. These clinical characteristics make the complete surgical removal of a tumor difficult. As a consequence, a poor prognosis may result due to local recurrence and distant metastasis. For this reason, it is important to consider adjuvant therapies for high-risk ameloblastic carcinoma patients. Here, the case of a recurrent ameloblastic carcinoma that occurred in the mandible after primary surgery is reported. The lesion was treated with further local excision, followed by postoperative radiotherapy. Also, a few remarks on the role of postoperative radiotherapy in patient with ameloblastic carcinoma have been made from a review of the current literatures on the treatment of this type of lesion.
Ameloblasts*
;
Humans
;
Mandible*
;
Neoplasm Metastasis
;
Prognosis
;
Radiotherapy*
;
Recurrence
;
Ulcer
10.Expression of OD314 during ameloblast differentiation and maturation.
Joo Cheol PARK ; Seong Min AHN ; Heung Joong KIM ; Moon Jin JEONG ; Min Ju PARK ; In Cheol SHIN ; Ho Hyun SON
Journal of Korean Academy of Conservative Dentistry 2005;30(5):423-431
Ameloblasts are responsible for the formation and maintenance of enamel which is an epithelially derived protective covering for teeth. Ameloblast differentiation is controlled by sequential epithelial-mesenchymal interactions. However, little is known about the differentiation and maturation mechanisms. OD314 was firstly identified from odontoblasts by subtraction between odontoblast/pulp cells and osteoblast/dental papilla cells, even though OD314 protein was also expressed in ameloblast during tooth formation. In this study, to better understand the biological function of OD314 during amelogenesis, we examined expression of the OD314 mRNA and protein in various stages of ameloblast differentiation using in-situ hybridization and immunohistochemistry. The results were as follows : 1. The ameloblast showed 4 main morphological and functional stages referred to as the presecretory, secretory, smooth-ended, and ruffle-ended. 2. OD314 mRNA was expressed in secretory ameloblast and increased according to the maturation of the cells. 3. OD314 protein was not expressed in presecretory ameloblast but expressed in secretory ameloblast and maturative ameloblast. OD314 protein was distributed in entire cytoplasm of secretory ameloblast. However, OD314 was localized at the proxiamal and distal portion of the cytoplasm of smooth-ended and ruffle-ended ameloblast. These results suggest that OD314 may play important roles in the ameloblast differentiation and maturation.
Ameloblasts*
;
Amelogenesis
;
Cytoplasm
;
Dental Enamel
;
Immunohistochemistry
;
Odontoblasts
;
RNA, Messenger
;
Tooth