A case of metastatic adenoid cystic carcinoma of the lung, originated from the trachea, was diagnosed by fine needle aspiration. Although the cytologic features of adenoid cystic carcinoma have been well described, it is easy to confuse adenoid cystic carcinoma with more common primary small cell neoplasms of the lung, i.e., small cell carcinoma, well differentiated adenocarcinoma, and carcinoid tumor of the lung. The features distinguishing adenoid cystic carcinoma from these neoplasms include 1) tight, globular, honeycomb pattern of cells, 2) acelluair basement membrane material in the lumen, and 3) cells lacking true nuclear molding and having bland chromatin pattern. The mcrphologic feature of metastatic adenoid cystic carcinoma in this case was so distinctive as to permit a definite diagnosis by aspiration cytology.
Adenocarcinoma ; Basement Membrane ; Biopsy, Fine-Needle ; Carcinoid Tumor ; Carcinoma, Adenoid Cystic ; Carcinoma, Small Cell ; Chromatin ; Diagnosis ; Fungi ; Kidney* ; Lung ; Trachea

Fibular fractures that begin proximal to the tibial plafond are assumed to include an injury of the syndesmosis. Many surgeons have treated this injuries by rigidly repairing the medial and lateral malleoli with trans-syndesmotic fixation. However, recently, some demonstrated that a trans-syndesmotic screw places biomechanical restrictions on the tibiotalar joint and is not required to maintain the integrity of the distal tibiofibular joint in cadava models. Thirty eight patients of ankle fracture with syndesmotic injury treated at Sun General Hospital from January 1989 to June 1994 week analyzed in clinical and radiologic aspect. The results obtained from this study were as followings. 1. If rigid anatomic medial and lateral joint fixation was obtained, syndesmotic screw fixation was not required to maintain the integrity of the syndesmotic. 2. Repairting the deltoid ligament did not enhance treatment results when fibular fracture and syndesmotic had been fixed anatomically. Therefore, we believe that syndesmotic screw fixation was indicated only when medial and lateral stabilization could not be achieved adequately.
Ankle Fractures ; Ankle Injuries ; Ankle ; Hospitals, General ; Humans ; Joints ; Ligaments ; Solar System ; Surgeons

Squamous cell carcinoma is a malignant tumor arising from the epidermis or its appendages, Squamous cell carcinoma of extremity comprises approximately 1 to 2 percent of all squamous celi carcinoma and of these 0.2 to 1.7 percents are secondary to chronic osteomyelitis and 2 percents are secondary to the burn scar. We experienced 4 cases of squamous cell carcinoma invading bone directly, of these 2 cases are secondary to chronic osteomyelitis and 2 cases are secondary to the burn scar. With prompt and aggressive surgical treatment the prognosis is good. Routine regional lymphadenectomy is unnecessary because in most instances enlarged nodes are inflammatory and subside after amputation.
Amputation ; Burns ; Carcinoma, Squamous Cell ; Cicatrix ; Epidermis ; Epithelial Cells ; Extremities ; Lymph Node Excision ; Osteomyelitis ; Prognosis

BACKGROUND: Immediate implant placement has become an acceptable treatment for the edentulous area. The advantages of the immediate implant placement include considerable decrease in time from tooth extraction to placement of the finial prosthesis, fewer surgical procedures, and better acceptance of the overall treatment plans. But the success is dependent on the quantity and quality of the extraction socket. The purpose of this study is to evaluate the success of the immediate implant placement. MATERIALS AND METHODS: Twenty-one sites in 16 patients were selected for the evaluation of the immediate implant placement. All of the cases were followed using clinical and radiographic examinations. Criteria of success were the absence of peri-implant radiolucency, mobility, and persistent pain or sign of infection. RESULTS: Of the 21 implants, 13 implants have been succeeded. Of the 13 implants, 10 implants were replaced for the periodontal disease and 3 implants were replaced for the trauma. CONCLUSION: The criteria of the success in immediate implant placement are as follows. 1) Implants placed into fresh extraction sockets have a high rate of survival. 2) Implant should be placed as close as possible to the alveolar crest. 3) Implant placed into available bone beyond the apex have a high success rate.
Humans ; Periodontal Diseases ; Prostheses and Implants ; Tooth Extraction* ; Tooth*

The incidence of uterine prolapse during pregnancy is rare. A 34-year-old G3P1 was initially presented at 16 weeks 5days of gestation with a prolapse of the uterine cervix. The cervix was edematous and protruding beyond introitus. Management included bed rest, and the patient was discharged after several days with a vaginal pessary to help maintain cervical placement. At 35 weeks of gestation, the patient did not experience any further prolapse after the removal of the pessary. Pregnancy progressed to term with no further prolapse. She was readmitted at 38weeks 5days of gestation with spontaneous labor. She delivered a 3.36kg male with an Apgar score at 1 minute and at 5 minutes of 7 and 8 respectively. The patient's cervix remained prolapsed in the early postpartum period; however it was easily reduced prior to discharge. After puerperium, the patient's cervix remained prolapsed. She was fitted with a vaginal pessary for uterine support. We reported this case with related literature.
Adult ; Apgar Score ; Bed Rest ; Cervix Uteri ; Female ; Humans ; Incidence ; Male ; Pessaries ; Postpartum Period ; Pregnancy* ; Prolapse ; Uterine Prolapse*

No abstract available.
Basal Ganglia* ; Pseudohypoparathyroidism*

OBJECTIVE: Our purpose was to compare the pregnancy outcomes of nulliparous women aged 40 years and older with those of nulliparous women under 35 years of age. METHODS: From January 1989 to December 1998 total 57,563 deliveries were seen in Gachon Gil Medical Center. Among them we experienced 59 cases of nulliparas at 40 years and older. These women were compared with 188 young nulliparas under 35 years of age as the control group. The statistical analysis was performed using Chi-square tests, and statistical significance was defined as p<0.05. RESULTS: The incidence rate of elderly nulliparas aged 40 years and older was increased from 0.04% in 1989 to 0.30% in 1998. The age distribution was from 40 years to 45 years. The gravidity of eldery nulliparas was 2.2 in comparison with 1.6 in control group. The incidence of uterine myoma, gestational DM, IUGR and oligohydramnios was significantly high rate in elderly nulliparas. There was significantly high rate of cesarean section in elderly nulliparas(88.1%) in comparison with control group(40.4%). The reasons of cesarean section were her demand(39.0%), CPD(15.3%) and breech presentation(13.6%) in decreasing order. The preterm delivery rate was 10.2% in elderly nulliparas in comparison with 4.3% in the control group. Placenta accreta and uterine atony were significantly high in elderly nulliparas and mean estimated blood loss was also high. There was no difference in 5-minute Apgar score between both group, but there were more cases of neonatal intensive care unit admission in neonates of elderly nulliparas(6.8% vs 0%). CONCLUSION: The incidence of elderly nulliparas is continuously increasing. The elderly nulliparas and their babies are at greater risk than young women. Therefore all elderly nulliparas aged 40 years and older can be regarded as high risk patients and they must be managed with careful attention.
Age Distribution ; Aged ; Apgar Score ; Cesarean Section ; Female ; Fetal Growth Retardation ; Gravidity ; Humans ; Incidence ; Infant, Newborn ; Intensive Care, Neonatal ; Leiomyoma ; Oligohydramnios ; Placenta Accreta ; Pregnancy ; Pregnancy Outcome ; Uterine Inertia

Dural arteriovenous fistulas (AVFs) are uncommon, representing only 10% to 15% of all intracranial AVFs. Here we present the case of a patient with cerebral infarction who experienced a dural AVF after craniotomy for superficial temporal artery (STA) to middle cerebral artery (MCA) bypass surgery. A 48-year-old man presented with dysarthria and right side hemiparesis. A brain magnetic resonance imaging scan revealed multiple acute infarctions and severe stenosis of the left MCA. Therefore, STA-MCA bypass surgery was performed. A follow-up angiography performed 2 weeks after the surgery showed an abnormal vascular channel from the left middle meningeal artery (MMA) to the middle meningeal vein (MMV) just anterior to the border of the craniotomy margin. This fistula originated from a screw used for cranial fixation. The screw injured the MMA and MMV, and this resulted in the formation of a fistula. The fistula was successfully treated with transarterial embolization. Surgeons should be careful when fixing bones with screws and plates as fistulas can develop if vessels are injured.
Angiography ; Brain ; Central Nervous System Vascular Malformations* ; Cerebral Infarction ; Cerebral Revascularization ; Constriction, Pathologic ; Craniotomy ; Dysarthria ; Fistula ; Follow-Up Studies ; Humans ; Infarction ; Magnetic Resonance Imaging ; Meningeal Arteries ; Middle Aged ; Middle Cerebral Artery* ; Paresis ; Temporal Arteries* ; Veins

BACKGROUND: Systemic hypertension produces varying degree of LVH which is associated with increased cardiovascular morbidiity. Previous studies have documented regression of LVH with various antihypertensives including calcium channel blockers, except diuretics and vasodilators. Recently echocadiographic assessment of the change of left ventricular mass(LVM) after antihyertensive therapy have been reported to offer prognostic cardiovascular information. The aim of this echocardiographic study is determining the influence of nicardipine, a calcium channel blocker, on the change of LVM in patients with essential hypertenison. METHODS: Left ventricular mass(LVM) and left ventricular mass index(LVMI) were measured by M-mode echocardiography in 15 patients with essential hypertension. Nicardipine, a calcium channel blocker, was administered for 6 months and two echocardiographies were done before and after administering, respectively. RESULTS: In the 15 patients treated for 6 months, systolic and diastolic pressure remained very significantly decreased compared with pressure before before therapy(135+/-15mmHg vs 168+/-26mmHg, and 86+/-7mmHg vs 105+/-16mmHg, both p<0.01). Concomitantly both LVM and LVMI decreased significantly(209+/-49g vs 235+/-71g, and 116+/-6g/m2 vs 131+/-38g/m2,both p<0.05). And no change was noted in left ventricular cavity size, demonstration that LVM reduction was due to regression of hypertrophy. CONCLUSION: This study showed that nicardipine produced a significant decrease in blood pressure, LVM, and LVMI over the 6 months period. And large and longterm controlled studies are needed for the clarification of the association between nicardipine and regression of LVH in hypertensive patients.
Antihypertensive Agents ; Blood Pressure ; Calcium Channel Blockers ; Calcium Channels ; Diuretics ; Echocardiography ; Humans ; Hypertension ; Hypertrophy ; Nicardipine* ; Vasodilator Agents

BACKGROUND: Thromboxane A2 and endothelin-1 are the potent vasoconstrictors affecting pulmonary pathophysiology in response to whole body inflammatin following CPB. Aprotinin, as an antiiflammatory agent, may decrease the release of such vasoactive substance from pulmonary tissues, preventing pulmonary hypertension after cardiopulmonary bypass. MATERIAL AND METHOD: Ten mongrel dogs(Bwt. ac. 20kg) were subjected to cardioupulmonary bypass for 2 hours and postbypass pulmonary vascular resistance(0, 1, 2, 3 hours) were compared with prebypass level. The dogs were divided into 2 groups; control group(n-5) and aprotinin group(n=5). In the aprotinin group, aprotinin was administered as follows; 50,000 KIU/kg mixed in pump priming solution, 50,000 KIU/kg prebypass intravenous infusion over 30 minutes, 10,000 KIU/kg/hour postbypass continuous infusion. Prebypass and postbypass 0, 1, 2, 3 hour pulmonary vascular resistance were measured. At prebypass and postbypass 0, 90, 180 minutes, blood samples were obtained from pulmonary arterial and left atrial catherers for the assay of plasma thromboxane B2 a stable metabolite of thromboxane A2, and endothelin-1 concentrations. RESULT: The ratios of pustbypass over prebypass pulmonary vascular at postbypass 0, 1, 2, 3 hours were 1.28+/-0.20, 1.82+/-0.23, 1.90+/-0.19, 2.14+/-0.18 in control group, 1.58+/-0.18, 1.73+/-0.01, 1.66+/-0.10, 1.50+/-0.08 in aprotinin group ; the ratios gradually increased in control group while decreased or fluctuated after postbypass 1 hour in aprotinin group. There was statistically significant difference between control group and aprotinin group at postbypass 3 hours(P=0.014). Pulmonary arterial plasma concentration of thromboxane B2(pg/ml) at prebypass, postbypass 0, 90, 180 minutes were 346.4+/-61.9, 529.3+/-197.6, 578.3+/-255.8, 493.3+/-171.3 in control group, 323.8+/-118.0, 422.6+/-75.6, 412.3+/-59.9, 394.5+/-154.0 in aprotinin group. Left atrial concentrations were 339.3+/-89.2, 667.0+/-65.7, 731.2+/-192.7, 607.5+/-165.9 in control group, 330.0+/-111.2, 468.4+/-190.3, 425.4+/-193.6, 4.7.3+/-142.8 in aprotinin group. These results showed decrement of pulmonary thromboxane A2 generation in aprotinin group. Pulmonary arterial concentrations of endothelin-1(fmol/ml) at the same time sequence were 7.84+/-0.31, 13.2+/-0.51, 15.0+/-1.22, 16.3+/-1.73 in control group, 7.76+/-0.12, 15.3+/-0.71, 22.6+/-6.62, 14.9+/-1.11 in aprotinin group. Left atrial concentrations were 7.61+/-17.2, 57.1+/-28.4, 18.9+/-18.2, 31.5+/-20.5 in control group, 5.61+/-7.61, 37.0+/-26.2, 28.6+/-21.7, 37.8+/-30.6 in aprotinin group. These results showed that aprotinin had no effect on plasma endothelin-1 concentration after cardiopulmonary bypass. CONCLUSIONS: Administration of aprotinin during cardiopulmonary bypass could attenuate the increase in pulmonary vascular resistance after bypass. Inhibition of pulmonary thromboxane A2 generation was thought to be one of the mechanism of this effect. Aprotinin had no effect on postbypass endothelin-1 concentration.
Animals ; Aprotinin* ; Cardiopulmonary Bypass ; Dogs ; Endothelin-1* ; Endothelins ; Extracorporeal Circulation* ; Hypertension, Pulmonary ; Infusions, Intravenous ; Plasma* ; Thromboxane A2 ; Thromboxane B2* ; Vascular Resistance ; Vasoconstrictor Agents