Biomedical subjects

G Zwiens

Publications and source records attributed to G Zwiens.

5 recordsLinked to original sources

PubMed1985

Chronic placentitis--a clinicopathological study.

Between 1978 and 1983 1240 singleton placentas were examined macroscopically and histologically. In 82 cases (6.6%) a "chronic placentitis" was diagnosed. The pathognomonic inflammatory foci were localized within the placental villi. The vast majority showed mixtures of both fibrohistiocytes and lymphoid cells, which were occasionally interspersed with plasma-cells. The clinical data relating to 67 placentas were correlated retrospectively with the degree of inflammation. 46 showed mild and 21 moderate to severe chronic placentitis. In both of these groups the proportion of preterm deliveries and cases with preeclampsia was equally high. With increasing severity of chronic placentitis, however, there was a significant reduction in weight and size of both, placenta and infant, and the incidence of perinatal asphyxia was significantly raised.

Chronic Disease↗

PubMed1985

Human early pregnancy factor: application of the monoclonal antibody anti-HuLyt 3 in the rosette inhibition test and in a cellular radioimmunoassay.

Using the monoclonal antibody anti-HuLyt 3, raised rosette inhibition titres were observed when lymphocytes were preincubated with early human pregnancy sera, although this was not a consistent finding. Results obtained from a cellular radioimmunoassay suggest that this enhancement of rosette inhibition is not due to interference with antibody binding.

Antibodies, Monoclonal↗

PubMed1985

Quantitative morphometric and histopathological study in rabbit oviducts after microsurgical treatment.

The histopathological lesions remaining after microsurgical tubal reanastomosis were investigated quantitatively by light microscopy and qualitatively by transmission and scanning electron microscopy. In 23 rabbit oviducts, the influence of the suture material poly-p-dioxanon and polyglactin-910 and post-operative time interval (6 and 12-15 weeks) was evaluated and compared with non-anastomosed contralateral oviducts as well as with those of unoperated controls. Except in the controls, partial deciliation, pathological kinocilia structure, microvilli and cytoplasmic blebs were found in all tissues, demonstrating an almost complete endosalpingeal restoration. A statistically significant increase of the muscular thickness was observed on the operated and unoperated sides and was due to fibrosis and expressed by cell/stroma ratio. Subepithelial microgland-like structures also appeared on both sides. As neither the kind of suture material nor time intervals led to differences in tissue reaction and, moreover, as similar alterations were found in the non-anastomosed oviducts, the lesions are presumed to be mainly the response to laparotomy.

Animals↗

PubMed1984

[Differential diagnosis of the axillary lymph node].

The authors report on clinically abnormal palpatory findings in the axilla. The radiology and sonography of these findings is described, as well as differential diagnosis between normal findings and benign as well as malignant changes. If it is not possible to confirm a benign aspect even by means of examination via relevant equipment, histological clarification must be sought whenever there is a new palpatory finding or if changes are noted.

Axilla↗

PubMed1983

[Initial clinical experiences with grid mammography].

The article reports on a comparison between 100 x-ray films (preparation radiographies, mammographies) with grid and a film/foil combination on the one hand, and conventional x-ray technique with material testing x-ray film on the other. The clear superiority of grid mammography is demonstrated by means of case examples.

Breast Neoplasms↗