A case of gastrointestinal stromal tumor of ileum preoperatively diagnosed as extrauterine myoma / 대한산부인과학회잡지

Gastrointestinal stromal tumor (GIST) of ileum is a rare tumor of gastrointestial tract that arise from primitive mesenchymal cells. GIST occur predominantly in persons over 40 years of age with an equal sex incidence. GIST expresses a heterogenous clinical course and the most important prognostic factors are tumor size, site, degree of mitotic activity, tumor necrosis. We report a case of GIST of ileum, which was misdiagnosed as extrauterine leiomyoma preoperatively.

The Expression of LH/CG receptor, alpha and Beta-hCG mRNA in the trophoblast of spontaneous abortion / 대한산부인과학회잡지

OBJECTIVE: To investigate the mechanisms involved in the mRNA expressions of hCG, LH/CG receptor and in hormone secretion in the trophoblast of normal and abnormal early pregnancy. METHODS: hCG, free Beta-hCG, and progesterone concentrations were measured in serum and the mRNA expressions of alpha,Beta-hCG and LH/CG receptor were measured in the placental trophoblast of 22 spontaneous abortion patients (spontaneous abortion group), 20 normal pregnancy women (normal pregnancy group) and 6 hydatidiform mole patients (hydatidiform mole group). RESULTS: 1. Mean values of serum hCG and free Beta-hCG concentrations were the lowest in spontaneous abortion group (46343.63+/-40404.18 mIU/ml, p<0.001; 31.34+/-61.57 mIU/ml, p<0.01 respectively) among the three groups. Mean progesterone concentration was the lowest in spontaneous abortion group (11.84+/-7.60 ng/ml, p<0.01), too.2. The expression levels of alpha,Beta-hCG were the highest in spontaneous abortion group (4.64+/-5.47, p=0.015; 4.57+/-4.42 p=0.002 respectively). The expression levels of LH/CG receptor were not different statistically among the three groups and they were high at the 5th week of gestation, reaching nadir at the 10th week of gestation when the concentrations of serum hCG showed peak values in normal pregnancy group.3. The correlations between serum hCG and progesterone concentrations were positive in both spontaneous abortion (r=0.827, p<0.001) and normal pregnancy (r=0.438, p=0.054) group. Though they were not significant statistically, the correlations between progesterone concentrations and the levels of alpha,Beta-hCG expressions were negative in both spontaneous abortion (r=-0.237, p=0.289; r=-0.211, p=0.347) and normal pregnancy (r=-0.270, p=0.250; r=-0.235, p=0.318) group. In hydatidiform mole group, the correlation between progesterone concentrations and the levels of Beta-hCG expression was positive (r=0.968, p=0.002). CONCLUSION: Our results suggest that the mechanisms involved in the secretion of hCG, progesterone and the expression of alpha,Beta-hCG, LH/CG receptor be normal in spontaneous abortion as in normal pregnancy and in the both groups, hCG stimulate the secretion of progesterone by autocrine function and control the secretion of itself, through the suppression of the expressions of alpha,Beta-hCG and LH/CG receptors. So the cause of spontaneous abortion in early pregnancy may be not placental dysfunction but the defect of embryo itself with poor placental growth.

A Case of Acardiac Parabiotic Twin / 대한산부인과학회잡지

Acardia is a very rare congenital anomaly occurring in less than 1 in 35,000 deliveries. Acardiac parabiotic twin has been reported only in multiple, monochronic pregnancies. This anomalous fetus is sustained in utero by parasitic anastomoses to the circulation of its usually normal co-twin and is therefore not compatible with extrauterine survival. A case of an acardiac parabiotic twin is described, and the literature concerning the incidence, classification and etiology of acardiac is reviewed.

The Value of HPV detection as a Follow-up Modality after Treatment of Cervical Precanceous Lesions / 대한부인종양콜포스코피학회잡지

OBJECTIVES: After LEEP conization of cervical precancerous lesions, cytologic follow-up and colposcopy is frequently unsatisfactory. This study was performed to investigate the relationship between the presence of human papillomavirus (HPV) and abnormal follow-up results. METHODS: Between March 1995 and Feburary 1999, 98 patients treated by LEEP for cervical dysplasia and CIS were included. All patient had initially done HPV testing by Hybrid Capture System (Digene Co., U.S.A.). Patients were followed up with PAP, colposcopy and HPV test. RESULTS: After mean follow-up 10.9-month follow-up, 9 patients (9.2%) had the abnormal cytology (>ASCUS). After treatment, there were 2 abnormal cytologic follow-up cases (13.3%) in the groups of koilocytosis and CIN I in initial tissue pathology, 7 abnormal follow-up cases (8.4%) in groups of CIN II/III and CIS. There was no significant difference between the recurrence rates of these two group (P=0.27). The presence of high-risk HPV DNA after LEEP was done in 26 cases. Of the HPV-positive follow-up cases, 4 patients (50%) had abnormal cytologic results. But none had abnormal cytology in HPV-negative patients. CONCLUSION: Participants with positive follow-up HPV test have a higher recurrence rate than those with negative HPV test. Our study suggests the value of supplementary HPV DNA testing during follow-up of patients treated for cervical precancerous lesions.