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.

[Value of interoperative preparation radiography for the detection of minimal cancer (author's transl)]. / Die Wertigkeit der intraoperativen Präparateradiographie für die Erkennung des Minimal Cancers.

The article reports on 31 carcinomas of the breast in the minimal cancer stage. This includes noninvasive and infiltrative carcinomas which had grown to a diameter of up to 5 mm. The patients were examined clinically, thermographically and by mammography. In 22 cases, puncture was performed under positional control of the puncture needle for the purpose of cytological or microhistological diagnosis. On the basis of these results, on-target extirpation of tissue was performed under control by interoperative preparation radiography in 24 patients; in 7 cases (29.1%) it became necessary to perform subsequent resection, in a few cases even repeatedly. It would not have been possible to detect these minimal cancers safely and to subsequently remove them by surgery without the aid of this interoperatively performed radiological examination.

Ovarian imaging by ultrasound: an attempt to define a reference plane.

The use of ultrasound to study ovarian function was established by our group. Ultrasound measurements of follicular diameters were found to be helpful for assessing follicular growth and development and for diagnosing and treating infertile women. Because of difficulties in ovarian visualization (differentiation between a more lateral part of the uterus and the ovary), the definition of a reference plane is necessary, especially to make this new technique reproducible. On the basis of the anatomic situation, we believe that it is possible to demonstrate ovarian vessels within the infundibulopelvic ligament. Using a compound scanner and a combined method of B mode, A mode, and TM mode, it should be possible to demonstrate such structures, and they should be useful as a reference plane. Our observations were confirmed in more than 2,500 examinations.