Histiocytic necrotizing lymphadenitis (Kikuchi-Fujimoto disease, KFD) is a benign self-limiting lesion that can self-heal when no severe symptoms are present. KFD resembles tuberculous lymphadenitis and malignant lymphoma. Thus, early differential diagnosis will minimize unnecessary evaluation and treatment. Histological examination of a lymph node biopsy or fine needle aspiration could be a reliable method for KFD diagnosis. This study reports a case of histiocytic necrotizing lymphadenitis of the right cervical lymph node in a 52-year-old female patient. According to the fine needle aspiration biopsy result, the patient was diagnosed with Kikuchi-Fujimoto disease and treated with prednisolone (15 mg/day). After treatment, there was no recurrence or adverse event. Key words : Histiocytic necrotizing lymphadenitis, Kikuchi-Fujimoto disease, Fine needle aspiration biopsy, Prednisolone

Squamous odontogenic tumor (SOT) is a relatively rare, benign, small (rarely > 1.5 cm in diameter), but locally infiltrative and occasionally aggressive odontogenic epithelial lesion that appears to have harmatomous and neoplastic characteristics [1]. SOT is often asymptomatic, although it can present with mildly painful gingival swelling or tooth mobility. Radiographically, SOT is usually visualized as an irregularly or triangularly shaped unilocular radiolucency associated with the lateral roots of teeth. We report a case of the squamous odontogenic tumor occurring in a 60-year-old female in the right posterior maxilla with unusual radiographic and clinical appearances. Key words : Squamous odontogenic tumor, Maxilla, Radiolucency

Sialadenoma papilliferum (SP) is a rare tumor that develops from salivary glands. First described by Abrams and Finck, the tumor shows a papillary form. The most frequent location of this tumor is the palate. In this case, we report a 63 year old man with a lesion located at the right retromolar of the mandible which might have caused bone resorption. Among with this case report, this paper discuss the feature of this rare tumor. The cases were searched from the pubmed website (https://www.ncbi.nlm.nih.gov/pubmed/) using the keyword ‘sialadenoma papilliferum’. Out of total 65 cases 41 patients were male and 19 patients were female. 4 patients were under the age of 20, 4 patients were between 21 and 40, 25 patients were between 41 and 60, 23 patients were between 61 and 80 and 4 patients were over 81 years old. The number of patients with the size of the lesion less than 1cm were 23, 16 patients had the size of 1cm to 2cm and 8 patients lesion were larger than 2cm. 22 lesions were located at the hard palate, 2 were at the soft palate, 6 were at the junction of hard and soft palate, 8 were at the buccal mucosa, 1 was at the upper lip mucosa, 3 were at the retromolar pad, 2 were at the tongue, 4 were at the parotid gland, 2 were at the floor of mouth, 1 was at the faucial pillar, 3 were at the bronchus, 1 was at the esophagus, 2 were at the nasopharynx, 1 was at the nasal septum, 1 was at the lung, 1was at the nasal cavity. In this case the lesion was found at an unusual location and although SP is known to be a benign tumor it may present bone resorption and have malignant characteristics. Key words : Sialadenoma papilliferum, Salivary glands

Ameloblastoma is an odontogenic tumor characterized by various sites of metastasis, malignant transformation, and a high recurrence rate over time. Ameloblastic carcinoma(AC) is the term reserved for an ameloblastoma with histologic evidence of malignancy in the primary tumor. AC is classified into two types: most ACs occur de novo, and only few cases of malignant transformation of ameloblastoma become apparent. Here, we report a case of AC, arising from recurrent acanthomatous ameloblastoma on the maxillary sinus, in a 60-year-old male patient. The mass was first diagnosed as acanthomatous ameloblastoma; subsequently, surgical curettage was performed thrice while partial maxillectomy was performed twice. On the fifth recurrence, the tumor was identified as AC. Key words : Ameloblastic carcinoma, Metastasis, Acanthomatous ameloblastoma, Maxillary sinus

Clear cell odontogenic carcinoma (CCOC) is an extremely rare odontogenic neoplasm; Only a few cases have been reported in the English literatures. It displays a propensity for the mandible, most commonly presenting in the fifth to seventh decades, with a female predilection. The clinical and radiological manifestations are multiple and the diagnosis is histological. Histological feature is of large islands and strands of uniform cells with round or ovoid nuclei and clear cytoplasm. Clinically, painless swelling is the most common symptom, followed by pain, teeth mobility, and paresthesia. CCOC has a good prognosis after surgery. This case report presents the histopathological and clinical features of CCOC excised from the mandible.

Odontogenic keratocyst (OKC) is aggressive compared to other odontogenic cysts, but its malignant transformation is extremely rare. Odontogenic carcinoma may arise from an odontogenic cyst such as OKC. Here in, we introduce a case of odontogenic carcinoma assumed to have arisen from a preexisting OKC. Abnormal clinical and radiologic features seen in a previous or existing cyst may be warning signs of malignant transformation. Key words : Odontogenic keratocyst, Odontogenic carcinoma, Malignant transformation

한국인 재발성 아프타성 구내염 환자에서 HLA형 분석 임지준, 곽난희, 홍성두, 홍삼표, 이재일, 임창윤 서울대학교 치과대학 구강병리학교실 HLA in Korean recurrent aphthous stomatitis patients: Significant association with Cw1 and DR9 antigens Ji Jun Lim, Nan Hi Gwack, Seong Doo Hong, Sam Pyo Hong, Jae Il Lee, Chang Yun Lim Department of Oral Pathology, College of Dentistry and Dental Reaserch Institute, Seoul National University

만성염증에 의한 구강안면 동통의 행동모형에 관한 연구 박수정 전북대학교 치과대학 구강생리학교실 및 구강생체과학연구소 Behavioral model of orofacial pain associated with chronic inflammation in awake rat Soo Jong Park Department of Oral Physiology, School of Dentistry and Institute of Oral Bioxcience, Chonbuk National University

PH domain에 의한 myotubularin-related(MTMR)2 phophatidyinositol phosphatase의 조절 김수아, 이원학, 안상건, 윤정훈 조선대학교 치과대학 구강병리학교실 Regulation of myotubularin-related(MTMR)2 phosphatidylinosotol phosphatase by PH domain Soo A Kim, Won Hak Lee, Sang Gun Ahn, Jung Hoon Yoon Department of Oral pathology, Bk21 Project, School of Dentistry, Chosun University

HSG 세포의 성장 및 세포사멸에서 일산화질소와 iron항상성에 관한 연구 이선경, 이화정, 고한영, 김성현, 원달호, 박종대, 전창덕, 김은철 원광대학교 치과대학 구강병리학교실, 원광대학교 의과대학 미생물 및 면역교실 The study on nitric oxide & iron homeostasis in regylation of cell growth & death in HSG cell Sun Kyung Lee, Hwa Jeong Lee, Han Young Guo, Seok Ho Kim, Sung Hyun Kim Dal Ho Won, Jong Dae Park, Chang Duk Jeon, Eun Cheol Kim Department of Oral & Maxillofacial Pathology, Collge of Dentistry, Department of Microbiology and /immunology. Cllege of Medicine, Wonkwang University

법랑아세포종에서 EGF, EGFR, aFGF, bFGF, FGFR, VEGF의 발련에 관한 면역조직화학 연구 최대영, 조재오 경희대학교 치과대학 구강병리학교실 Immunohistochemical study on expression of EGF, EGFR, aFGF, bFGF, FGFR and VEGF in human ameloblastomas Dae Young Choi, Jaeo Cho Department of Oral Pathology, College of Dentistry, Kyung Hee University

백서 두개골에서 LED조사가 골 형성에 미치는 영향 한세우, 김옥준, 장윤영, 임원봉, 오원만, 박진수, 김명래, 최홍란 전남대학교 치과대학 구강병리학교실 및 치의학연구소 바이오포톤 이화여자대학교병원 구강외과 Effects of LED irradiation on Bone Formation in Rat Calvarria Sae Woo Han, Ok Joon Kim, Youn Young Jang, Won Bong Lim, Won Mann Oh, Jin Soo Park, Myung Rae Kim, Hong Ran Choi Department of Oral Pathology, Dental Science Reserch Institute, Biophoton, 705, Business Incyvation Center, Department of Oromaxillosurgery, Mokdong Hospital, Ewha Womans University