No abstract available.
Humans

No abstract available.
Fetal Blood* ; Glucose* ; Humans ; Infant, Newborn*

PURPOSE: The purpose of our study was to characterize the enhancing patterns of hepatic metastasis from gastric adenocarinoma using multi-phase incremental bolus dynamic CT with obtained both in early and late phase contrast scan and to evaluate the its advantages. METHODS AND MATERIALS: Of 33 cases of multi-phase incremental bolus dynamic CT with proved hepatic~metastasis from gastric adenocarinoma, we classified dynamic enhancement patterns as three types according to early phase contrast enhancement, and then analized the late phase contrast enhancement, more metastasis detection, segmental abnormal arterial perfusions and correlation between pathologic type. RESULTS: Type I (totally hypodense lesion) was in 18 patients(55%), type II (peripheral high density area) was seen in 13 patients (39%), and type III (near totally hyperdense lesion) was seen in two patients(6%). But in late phase, masses showed totally hypodense area in 26 patients(79%), central high with peripheral low density area(PLDA) in six patients(18%) and totally isodense in one patient(3%). More metastatic masses were detected with early phase in 11 patients(33%) as compared with late phase contrast. Segmental arterial hyperperfusion around the lesions, which could represent intrahepatic portal branch invasion, was seen in 10 patients(30%). There was no correlation between pathologic type and enhancement pattern of lesions. CONCLUSION: Multi-phase incremental bolus dynamic CT could represent variable hemodynamic changes of hepatic metastatic masses and was useful to evaluate the qualitative and quantitative analysis of hepatic metastases.
Hemodynamics ; Humans ; Neoplasm Metastasis* ; Perfusion ; Stomach Neoplasms* ; Stomach*

Objective To investigate the distribution of weak D and Del phenotype in unrelated blood donors with negative Rh (D). Methods Four hundred and nineRhD (-) unrelated donors were screened by the saline agglutination method. Type weak D was detected by the indirect antiglobulin test, and type Del was detected by absorb radiation method. Results In 409 RhD (-) samples, 27 cases (6.61%) of type weak D were checked out, and 61 cases (14.91%) were type Del and 321 cases (78.48%) were corroborate for RhD (-), In the confirmed RhD (-) blood donors, phenotype ccee was most (49.14%), followed by Ccee (23.47%), People with phenotype ccEe accounted for 4.16%in type weak D, followed by Ccee (1.71%). Ccee accounted for 10.02%in type Del, and Ccee accounted for 1.71%. Conclusion RhD (-) donors screened by regular testing should adopt a more sensitive test for verifing type weak D or Del. In order to ensure the security of blood transfusion, people with type weak D and Del should be regarded as RhD positive blood donors, and the RhD negative people deemed to be recipients.

PURPOSE: To identify the longterm hemodynamics of various hepatic masses and to determine any differential findings by using postangiographic CT performed with increased amount of contrast media and time than conventional contrast CT. MATERIALS AND METHODS: 50 confirmed masses consisted of 22 hepatocellular carcinoma, 10 cholangiocarcinoma, 9 metastasis, and 9 cavernous hemangioma were included. The changes of the density of internal viable tumor portion relative to surrounding normal liver parenchyma in postangiographic CT from that in conventional CT were classified as 3 patterns; no specific changes, increase, or decrease. RESULTS: in 22 cases of hepatoceilular carcinoma, six cases showed no relative density change, four cases increase, and twelve cases decrease. In ten cases of cholangiocarcinoma, one case showed no change, nine cases increase. In nine cases of metastasis, four cases showed no change, five cases increase. In nine cases of hemangioma, all cases showed increase. CONCLUSION: In postangiographic CT which emphasize the significance of postequilibrium and delayed phase, other hemodynamic changes undetected in angiography could more easily be comprehended. Considering the differing amount of consumed contrast media and time duration, and with reference of other imaging modalities, differential diagnosis of hepatic masses based on longterm hemodynamics could easily be made.
Angiography ; Carcinoma, Hepatocellular ; Cholangiocarcinoma ; Contrast Media ; Diagnosis, Differential ; Hemangioma ; Hemangioma, Cavernous ; Hemodynamics ; Liver ; Neoplasm Metastasis ; Specific Gravity

Adult ; Electromyography ; Gasoline ; poisoning ; Humans ; Male ; Poisoning ; physiopathology ; psychology ; Young Adult

No abstract available.
Complement System Proteins* ; Humans ; Infant, Newborn*

No abstract available.
Axis, Cervical Vertebra* ; Estradiol* ; Testosterone*

Skin wart is an infectious disease of human papillomavirus(HPV). Its clinical and histopathologic characteristics are largely determined by lesion sties, viral type and host immunity. The infected basal cells and keratinocytes of the epidermis are induced to proliferate by the viral genome. It is, however, not well known how htose factors give rise to histopathologic alterations in the infected basal cells and keratinocytes. So, evaluation of correlation between HPV antigen expression in the wart tissues and clinical and histopathologic charateristics was done on 83 cases of skin warts. The age of patients ranged from 2 to 83 years. Thirty six(43.3%) cases were diagnosed before the age of third decade. The sex ratio was nearly same. Verruca vulgaris was most common(46 cases), followed by verruca plana(26 cases) and verruca palmoplantaris(11 cases). HPV antigen expression was observed in 43 out of total 83(51.8%). It was noted in 47.8%(22/46) of verruca vulgaris, in 46.2%(12/26) of verruca plana and in 81.8%(9/11) of verruca palmoplantaris. HPV antigen-positive groups included more younger patient's age and more higher PCNA than those of HPV negative groups. HPV positive groups also tend to have shorter duration of disease and more numerous mitoses than HPV negative groups. HPV antigen-positive groups showed lower inflammation grade than that of HPV negative groups(p<0.05). The higher the inflammaton grade is, the lower the HPV antigen expression rate. In summary, HPV antigen expression in cutaneous wart tissue is significantly correlated with the proliferative activity of the lesion. It is also significantly correlated with the inflammation that is considered to be the result of cell-mediated immune reaction.
Humans

No abstract available.
Adrenocorticotropic Hormone* ; Animals ; Plasma* ; Rats*