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[Interference microscopic determinations of dry mass of cell nuclei of normal and dysplastic epithelium, carcinoma in situ and cervical carcinoma cultivated in vitro (author's transl)].

Dry mass of cell nuclei was studied in 34 explant cultures of normal epithelium (8), persisting dysplasias (7), Ca in situ (9) and cervical carcinomas (10) by interference microscopic determination. Dysplasias, Ca in situ and carcinomas can be distinguished from normal epithelium by a significantly higher dry mass value. Such a difference does not exist between dysplasia and Ca in situ. The percentage of dispersion of the dry mass is significantly higher in carcinomas than in all other examined tissues. The biological meaning of these results is discussed. The interference microscopic determination of dry mass of the cell nuclei is a suitable parameter for the characterization of properties of cervical carcinomas and their intraepithelial prestages cultivated in vitro.

Carcinoma, Squamous Cell

Complement-dependent cytotoxic antibodies in the course of cervical carcinoma.

Complement-dependent cytotoxic antibodies to three cervical carcinoma cell lines (Me-180, SW-732 and HeLa) and to Herpes simplex virus type 2 (HSV-2)-infected cells were determined in a long-term study of women with cervical carcinoma. Cytolysis of surface antigens differed significantly between the cervical carcinoma cell lines and HSV-2. Regression of the tumor during treatment was accompanied by decreasing cytolysis in the cervical carcinoma lines, while tumor bearers and patients who became severely ill had high or increasing cytotoxic antibodies, The opposite was noted for the antibody response to HSV-2 infected cells: patients with less advanced cancer had significantly higher cytolytic activity than those who were severely ill or had advanced cancer; long-term survivors demonstrated high, stable lysis of HSV-2 infected cells. As a control of the cervical carcinoma cell lines, cytolytic activity was tested also on a lung carcinoma cell line, A-549. No significant differences were found between the patients with cervical cancer and the control women. Tumor bearers and patients treated for advanced cervical cancer showed a slight but non-significant increase in cytolytic activity on the A-549 line.

Antibodies, Viral

Cervical carcinoma in Zambia.

A series of 274 cases of cervical carcinoma in Zambian Africans is presented. Cervical carcinoma formed 29.3% of all female cancers. Poorly differentiated squamous carcinoma constituted the most common histologic type. Concomitant bilharziasis was found in 24.4% of cases. In 59 cases causal factors such as coitus, early marriage, age at first pregnancy and parity were studied and discussed. No correlation was found between circumcision and cervical carcinoma.

Adenocarcinoma

Changeable lymphocytotoxic antibody activity in patients with cervical carcinoma.

In patients with cervical carcinoma examined over an extended period of time we observed lymphocytotoxic antibody activity more often in patients with terminal invasive carcinoma than in patients with preinvasive carcinoma. Antibody activity was very variable and it is postulated that this man relfect in vivo consumption of such antibodies as a consequence of qualitative or quantitative variations in cancerous tissue mass. In almost all instances we were unable to establish the specificity of the lymphocytotoxic antibodies with respect to known histocompatibility antigens. This suggests that their activity may be directed against a nucleus of HL-A determinants present in all human cell lines.

Absorption

Difficulties in diagnosing unusual spread of cervical carcinoma.

A case involving unusual spread of cervical carcinoma in a 66-year-old white woman who remained relatively asymptomatic for 26 years after radiation therapy for stage III or IV squamous cell carcinoma is presented. Despite an extensive clinical work-up, diagnosis was not made until a large retroperitoneal tumor mass was discovered at necropsy. The subtle clues of occult malignancy are discussed and a mechanism for the unusual spread of the cervical carcinoma is presented.

Aged

Carcinoma in situ of the Fallopian tube associated with cervical carcinoma. Case report.

A case of carcinoma in situ of the fallopian tube in a 55-year-old woman, associated to cervical carcinoma is described. The necessary criteria for the diagnosis of pre-invasive carcinoma of the fallopian tube, among which the number of mitoses seems to be of great importance, are discussed. This previously unreported association of carcinoma in situ of the fallopian tube, with carcinoma of the uterine cervix, emphasizes the notion of the multicentric neoplastic possibilities of the müllerian tract derivatives.

Carcinoma in Situ

Case report. Cervical carcinoma with selective IgA deficiency.

A patient with cervical carcinoma was found to have selective IgA deficiency. The intact cell-mediated immunity, normal levels of IgG and IgM, and the absence of serum and salivary IgA established the diagnosis. Contrary to those of normal persons, salivary IgM was elevated and salivary IgA was not detectable in this patient. The patient had no signs attributable to IgA deficiency, but she always had dryness of the mouth. The association between cervical carcinoma and selective IgA deficiency was discussed.

Carcinoma, Squamous Cell

Extrapelvic lymph node metastases in cervical carcinoma.

One hundred and fifty patients with invasive cervical carcinoma underwent preradiation therapy celiotomy and para-aortic node excision. The incidence of histologically documented metastases in these nodes was 33% (34/102) in Stage IIIB. The last 23 patients with positive para-aortic nodes had left sclanene node excision; nodes were positive in eight patients (34.8%). Sixteen patients had visceral metastases including 11 with small and large bowel metastases, two with liver metastases, and one with metastases to the liver and intestine. Pretreatment celiotomy with para-aortic lymph node excision and, where positive, followed by scalene lymph node excision is valuable in treatment planning in advanced cervical carcinoma limited to the pelvis.

Abdomen

Factors influencing the occurrence of advanced cervical carcinoma.

The continued occurrence of advanced cervical carcinoma (stage II, III, IV) was studied. Patients were evaluated with regard to age, racial origin, socioeconomic status, geographic distribution, and presenting symptoms. Particular emphasis was placed on the role of screening in disease detection. The disturbing finding was that of the 170 patients reviewed, disease was diagnosed by screening examination in only 20 patients. Furthermore, 62 patients were not diagnosed even though they were exposed to the health care system. Factors which influence obtaining Pap smears are discussed, with suggestions as to how to enhance use of the Pap smear.

Adult

Cervical carcinoma with adenoid cystic pattern: a light and electron microscopic study.

Three cases of cervical carcinoma with an adenoid cystic pattern were studied by light and electron microscopy. All were found to be compatible with the histologic picture of adenoid cystic carcinoma in other body sites. Although there was some variability in the pattern among the tumors, areas of each exhibited a cribriform appearance characterized by small cells with sparse cytoplasm arranged around cystic gland-like lumina. Only one tumor displayed cylindromatous formations similar to those described by Billroth. Two of the tumors were associated with foci of squamous cell carcinoma while the third contained areas suggestive of such a component. Electron microscopic examination showed varied morphology of the cysts, manifested by true glandlike lumina, extracellular spaces containing replicated basement membrane or enclosed stroma. In view of the observed diversity in the light and electron microscopic morphology of adenoid cystic carcinomas of the cervix, it is apparent that this tumor is not a distinct histologic entity. Accordingly, it is recommended that the terminology "cervical carcinoma with adenoid cystic pattern" be utilized.

Adenocarcinoma

Relationship of herpes simplex virus type-2 antibodies and squamous dysplasia to cervical carcinoma in situ.

Serum specimens from 75 women with cervical carcinoma in situ, 84 with squamous dysplasia, and 132 controls, who had previously been interviewed and tested for complement fixing antibodies against a number of organisms, were analyzed for HSV-2 antibodies. Carcinoma in situ and severe dysplasia were associated with HSV-2 antibodies. Mild dysplasia was related to evidence of prior infection by Trichomonas vaginalis, adenoviruses, and Mycoplasma pneumoniae, plus a history of vaginal discharge. Severe dysplasia was less strongly related to these variables. The relative risk of dysplasia increased with the number of different pathogens by which a woman had been infected. It is concluded that HSV-2 may be a cause of carcinoma in situ; that much dysplasia is a nonspecific reaction of the cervical epithelium to chronic inflammation; and that dysplastic lesions that are caused by HSV-2, and hence may be a precursor to carcinoma in situ, tend to be distinguished by their severity.

Adolescent

DNA distribution in biopsy specimens from human cervical carcinoma investigated by flow cytometry.

Flow cytometry was used for the investigation of the DNA distribution in biopsy specimens from 51 patients with cervical carcinoma. Portio biopsy specimens from 9 pregnant women and from 10 patients with cancer of the breast served as controls. The results demonstrate that most specimens from patients suffering from cervical carcinoma contain considerable cell populations with increased DNA as compared with controls. The possible clinical significance of these findings is discussed.

Biopsy

[Morphology of the development of intraepithelial cervical carcinoma (author's transl)].

By studying histologic preparations of 240 cervices (165 obtained by conization and 75 by hysterectomy), the author tries to answer the following questions: 1. Whick epithelium is responsible for the development of intraepitheilal cervical carcinoma? 2. Does it appear unicentrically or multicentricall? 3. What is the tendency of its spreading? The author concludes that intraepithelial carcinoma of the cervix develops from both kinds of the epithelium, although its development from the squamous epithelium is much rarer, only in 6.2% of cases. It develops muticentrically, by which individual new foci appear in different periods of time. The unicentrical appearance of the carcinoma, confirmed in 45 cases, is not in disagreement with this conclusion. As regards the spreading of intraepithelial carcinoma, the author's observations corroborate those of other authors, i. e. that the carcinoma spreads primarily in the glandular region.

Carcinoma

Electrochemical Duplex Detection of E2 and E6 Genes of Human Papillomavirus Type 16 and Determination of Physical Status in High-Risk Cervical Carcinoma.

Human papillomavirus type 16 (HPV-16) is a key driver in the development of cervical carcinoma, with the integration of its genome into the host DNA marking a critical step in disease progression. Monitoring the physical state of HPV-16, particularly the transition from episomal to integrated forms, is essential for evaluating the risk of malignancy development in cervix. This study presents the development of a duplex electrochemical biosensor for the simultaneous detection of the E2 and E6 genes of HPV-16. Using a one-step sandwich hybridization assay, the biosensor was able to detect HPV-16 E2 and E6 genes with a sensitivity of 8 copies/mL and 12 copies/mL respectively and distinguish between the episomal and integrated forms based on the E2/E6 ratio (cut-off 0.77, 100% sensitivity/specificity). The sensor was validated with 30 clinical cervical tissue samples, providing results comparable to qPCR method. This novel biosensor offers a rapid and efficient platform for the detection and monitoring of HPV-16, with potential applications in cervical cancer screening and prognosis.

Humans

Oral contraceptives and cervical carcinoma.

In a case-control study, 689 consecutive patients with cervical carcinoma were studied for their use of oral contraceptives. The control patients were matched for age, ethnic origin, age at first pregnancy, age at first coitus, and socioeconomic status. There was no significant difference between case and control subjects in the duration or oral contraceptive use, the type of estrogen used, or the years in which oral contraceptives were used. The mean duration of oral contraceptive use was 30.9 months by the case subjects and 30.2 months by the control subjects.

Adolescent

Correlation of DNA distribution and cytological differentiation of human cervical carcinomas.

The DNA distribution of biopsy specimens from 46 patients suffering from cervical carcinoma was analysed by flow cytometry and compared with the cytological differentiation. According to morphological criteria the carcinomas were classified as highly differentiated, moderately differentiated and poorly differentiated. The results demonstrate that highly differentiated tumours contain hyperploid cells predominantly with hyperdiploid DNA content. Hyperploid cell populations in the moderately differentiated tumours are mainly in the hyperdiploid and tetraploid regions. Poorly differentiated tumours contain hypertetraploid and aneuploid cell populations. The significance of these findings is discussed.

Biopsy

Dose distribution in 42 MV roentgen irradiation of cervical carcinoma.

The dose distribution obtained with two different techniques for external irradiation of cervical carcinoma is described. The dose to the central area is somewhat higher with the multiple beam technique compared with the newly introduced shielding block technique. The difference between the calculated CRE values for the two techniques is small. When the shielding block is not placed over the area corresponding to the position of the applicators from the previous intracavitary treatment the considerable difference in absorbed dose between the two techniques does not correspond to the difference in the calculated CRE values. A comparison of the relative distributions laterally, in total dose and CRE, shows that for central volumes the relative CRE is much higher than the relative dose, when the normalization is made at the pelvic wall.

Absorption