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.
Lipomas are the most common benign mesenchymal tumors composed of mature adipocytes. They are usually slow-growing, soft and asymptomatic masses. Angiolipomas are rare benign soft tissue tumors that are distinguished from common lipomas by a marked degree of vascularization. The diagnosis and prognosis of angiolipomas are based entirely on the findings of histological evaluations. Angiolipoma, showing characteristics of both lipoma and hemangioma, usually develop in the trunk and extremities, and rarely arise in the head and neck region. Angiolipoma of the cheek is very rare. This report presents the clinical and histopathological features of infiltrating angiolipoma excised from the cheek.
Pleomorphic adenoma is the most common benign tumor of the salivary glands. About 80-90% of pleomorphic adenoma occurs in the parotid gland and about 5-10% of them occur in the submandibular gland and sublingual gland. The rest proportion comprises the minor salivary glands. The palate is the most common area, followed by the lips and the cheeks. Pleomorphic adenoma of the submandibular gland shows clinically a slow-growing, painless mass found on submandibular aspect. In this case report, we report a case of pleomorphic adenoma of the right submandibular gland in a 63-year old female patient who was referred from the department of neurosurgery, due to the heterogenous mass detected by computed tomography (CT) and magnetic resonance imaging (MRI)
철골 건축 구조물이 횡하중을 받을 때 합성보의 거동에 대한 연구가 수행되었다. 실험으로부터 얻어진 결과와 수치해석에 의한 결과를 이용하여 합성보의 강성과 연결부에서의 강도를 위한 수학적 모델이 연결부의 상세를 고려하여 개발되었다. 또한 캔티레버 합성보의 skeleton 곡선과 hysteresis 곡선을 위한 해석모델이 제시되었다. 탄성보와 부재내의 비탄성 변형이 응집된 양 단부스프링으로 구성된 단일요소모델에 의한 합성보 요소가 컴퓨터 프로그램, DRAIN-2D에 포함되었으며, 해석결과는 실험결과의 비교를 통해 검정되었다.
A paradoxical response in tuberculosis is defined as clinical and radiological worsening of previous lesions or development of new lesions after initial improvement during the process of anti-tuberculous treatment. The authors report on a patient who developed massive pleural effusion as a paradoxical response after 8 weeks of anti-tuberculous treatment. The patient’s symptoms were improved with thoracostomy without any change of anti-tuberculous medications. If symptoms worsen during the process of anti-tuberculous treatment, drug resistance, non-compliance, or other diseases should be excluded first. If it is regarded as a paradoxical response, the treatment plan need not be changed except for additional conservative treatment.
Low temperature germination is one ofthe major determinants for stable stand establishment in the direct seeding method in temperate regions. Quantitative trait loci (QTLs) controlling low temperature germiability (LTG) and awn were confirmed in BC1F1 usi
This study was conducted to identify the genetic basis of the domestication-related traits in weedy rice. An RIL population consisting of 80 lines was developed from a cross between the japonica weedy rice, Hapcheonaengmi 3 and the Tongil-type cultivar Mi
This study was conducted to identify the genomic regions associated with cold tolerance in rice. An RIL population consisting of 120 lines was developed from a cross between the japonica cultivar, Hwayeongbyeo and the wild rice, Oryza rufipoon Griff. Acc.