Fibrous dysplasia of the maxilla in an elderly female: Case report on a 14-year quiescent phase

Fibrous dysplasia (FD) is an uncommon skeletal disorder in which normal bone is replaced by abnormal fibro-osseous tissue. Mainly, FD is found in children, and by adulthood it usually becomes quiescent. Our case showed FD of more than 14-year duration in the left maxilla. Our evaluation was that growth ceased in adulthood and had achieved the static stage. Because FD cases in elderly patients are rarely reported, we hereby present a monostotic FD case in a 65-year-old female. We presented sequential radiographic images and scintigraphic images of this case, and combined them with a literature review that emphasized the progression of the disease.

Radiographic evaluation of dentigerous cyst with cone beam CT / 대한구강악안면방사선학회지

PURPOSE: The purpose of this study was to accurately analyze the radiographic characteristics of dentigerous cyst (DC) with multiplanar images of cone beam computed tomography (CBCT). MATERIALS AND METHODS: Thirty eight radiographically and histopathologically proven cases of DCs were analyzed with panoramic radiograph and CBCT, retrospectively. The radiographic CT pattern, symmetry of radiolucency around the unerupted tooth crown, ratio of long length to short length, degree of cortical bone alternation, effects on adjacent tooth, and cyst size were analyzed. Relative frequencies of these radiographic features were evaluated. In order to compare the CBCT features of DC with those of odontogenic keratocyst (OKC), 9 cases of OKCs were analyzed with the same method radiographically. RESULTS: DCs consisted of thirty unilocular cases (79.0%), seven lobulated cases (18.4%) and one multilocular case (2.6%). Eight were asymmetric (21.0%) and thirty were symmetric (79.0%). Maxillary DC showed rounder shape than mandibular DC (L/S ratio; maxilla 1.32, mandible 1.67). Alternations of lingual cortical bone (14 cases, 48.2%) were more frequent than those of buccal side (7 cases, 24.1%). CBCT images of DC showed definite root resorption and bucco-lingual tooth displacement. These findings were hardly observed on panoramic radiographs of DCs. Comparison of CBCT features of DC with those of OKC showed several different features. CONCLUSION: CBCT images of DC showed various characteristic radiographic features. Therefore, CBCT can be helpful for the diagnosis of DC radiographically.

Report of two cases of osteopetrosis with maxillary osteomyelitis in siblings / 대한구강악안면방사선학회지

Osteopetrosis is a rare bone disease characterized by systemic osteosclerosis due to an osteoclast dysfunction that decreases bone resorption. This report demonstrates two cases of adult osteopetrosis with secondary osteomyelitis of the maxilla, in siblings who are 43-year old female and 55-year old, male respectively. The common radiographic features of these cases were increased radiopacity in skull, rib and vertebra. The radiographic features that differed between these two cases were the osteosclerotic pattern of the jaw bones, that is, diffuse patterns in the female case, while the male case showed nodular patterns that were confined to the root apices. The diagnosis of osteopetrosis may be complicated due to the varying degree of osteosclerosis on panoramic radiograph. Additional radiographs such as the chest and skull radiograph may be helpful for the diagnosis of osteopetrosis.

Changes of c-Fos Immunoreactivity in Rat Brain Neurons According to Ages After Induced Pain / 대한소아신경학회지

PURPOSE: The pathways of pain conduction in brain are not well known. Also, differences of somatic pain conduction between adult and young age have not been fully elucidated. This study was conducted to investigate any differences in the expression of c-Fos protein between adult and young rats after somatic pain was induced by formalin. METHODS: Male rats (n=70) were injected subcutaneously with 0.1mL of 5% formalin in the plantar surface of right hindpaw. Rats were sacrificed at 30 minutes, 1 hour, 2 hours, 6 hours, 24 hours after noxious formalin stimuli to hindpaws and rectums. Rat brains were removed and sliced in rat brain matrix. Brain slices were coronally sectioned at interaural 5.70-6.70mm. Serial sections were immunohistochemically reacted with polyclonal c-Fos antibody. The numbers of c-Fos protein immunoreactive neurons in cingulate cortex, primary somatosensory area, and hippocampus were examined and analyzed statistically with Mann-Whitney U test. RESULTS: The number of c-Fos protein immunoreactive neurons in the cingulate cortex, primary somatosensory area and hippocampus peaked at 2 hours after formalin-induced pain on adult rats. The number of c-Fos protein immunoreactive neurons in the cingulate cortex, primary somatosensory area and hippocampus peaked at 1 hour after formalin-induced pain on young rats. The numbers of c-Fos protein immunoreactive neurons of adult groups were higher than that of young groups at all points of time. CONCLUSION: The immunoreactions in adult group expressed more intense than those in young group. Earlier expression of immunoreactions in young group suggests of faster conduction of pain, compared to those in adult group. Larger number of c-Fos protein immunoreactive neurons were found within specific regions in both groups. These results could provide some basic knowledge in understanding the mechanism and control of pain in pediatric group.

A Case of Successfully Treated by Local Low-dose Urokinase Infusion in Neonate with Blalock-Taussing Shunt Partially Occluded by Thrombus

For some cyanotic children with deficient pulmonary blood flow, the Blalock-Taussig shunt is a life-saving or temporizing form of palhation. Extensive experience has been gathered, and mortality and morbidity as well as the incidence of shunt stenosis and thrombosis have significantly decreased. However, even nowadays, the most frequently encountered complication excluding mortality in early postoperative course is occlusion of the shunt. We experienced a case of Blalock-Taussig shunt occlusion with thrombus. We diagnosed him as ventricular septal defect with pulmonary atresia by echocardiography and performed a right classic Blalock-Taussig shunt at 7th day of age, Oxygen saturation was gradually decreased since the 6th day postoperative. He was diagnosed as thrombosis of shunt at 12th day postoperative by cardiac angiography, and then was treated with a local low-dose urokinase infusion(1,000U/kg/hr) through Cobra catheter(Cook. In. Co.). After 21 hours, thrombolysis of shunts was comfirmed. We stopped the urokinase and medicated low-dose aspirin(5mg/kg/day). After the eighth day, shunt flow by echocardiography was patent.

A Case of Successfully Treated by Local Low-dose Urokinase Infusion in Neonate with Blalock-Taussing Shunt Partially Occluded by Thrombus

For some cyanotic children with deficient pulmonary blood flow, the Blalock-Taussig shunt is a life-saving or temporizing form of palhation. Extensive experience has been gathered, and mortality and morbidity as well as the incidence of shunt stenosis and thrombosis have significantly decreased. However, even nowadays, the most frequently encountered complication excluding mortality in early postoperative course is occlusion of the shunt. We experienced a case of Blalock-Taussig shunt occlusion with thrombus. We diagnosed him as ventricular septal defect with pulmonary atresia by echocardiography and performed a right classic Blalock-Taussig shunt at 7th day of age, Oxygen saturation was gradually decreased since the 6th day postoperative. He was diagnosed as thrombosis of shunt at 12th day postoperative by cardiac angiography, and then was treated with a local low-dose urokinase infusion(1,000U/kg/hr) through Cobra catheter(Cook. In. Co.). After 21 hours, thrombolysis of shunts was comfirmed. We stopped the urokinase and medicated low-dose aspirin(5mg/kg/day). After the eighth day, shunt flow by echocardiography was patent.

A Cse of Partial Trisomy 10q Syndrome / 대한주산의학회잡지

Partial trisomy 10q syndrome is a rare chromosome anomaly characterized by severe mental and growth retardation, craniofacial dysmorphia with prominent forehead, fine arched eyebrows, deep set small eyes and micrognathia, In addition, other physical manifestations have been reported as skeletal anomaly, congenital heart disease, inguinal hernia, and so on. We report a case of partial trisomy 10q syndrorne with certain stigmata which confirmed by chromosome analysis.