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Biomedical subjects

J Szamborski

Publications and source records attributed to J Szamborski.

At least 19 recordsLinked to original sources
PubMed1993

Evaluation of selected prognostic factors in ovarian cancer.

Among the group of 367 women with ovarian cancer, 11 prognostic factors were examined. Eight of the factors had an important prognostic value regarding the longterm (5 and 10 years) survivals of ovarian cancer patients. There were the following significant prognostic factors: histological type, the degree of differentiation of the tumour, clinical stage, ascites, overgrowth of the capsule, or infiltration of the ovary surface, irregular shape of the tumour, cancer in both ovaries, and solid type of the tumour. The best prognosis was obtained for patients with mucous type of cancer (53.3%-5 and 26.7%-10 years survival). The poorest prognosis was obtained for the group of patients with undifferentiated cancers, respectively, 11.8 and 3.6%.

Ascites↗
PubMed1990

Estrogen and progestin receptor levels in uterine leiomyomata: relation to the tumour histology and the phase of menstrual cycle.

Estrogen receptor (ER) and progestin receptor (PR) levels in the myometria and uterine leiomyomata of 26 normally menstruating women were studied. No significant menstrual cycle-related change in ER level was found in the leiomyomata or normal myometria. The ER levels in normal myometria and in cellular leiomyomata, but not in usual leiomyomata, tended to be higher in the follicular phase than in the luteal one. The "cytosolic" PR levels in cellular leiomyomata and in usual leiomyomata with no or with slight hyalinization as well as in their parental myometria were significantly lower in the luteal than in the follicular phase. This was not the case in usual leiomyomata with more intense hyalinization. The findings show that the reactivity of uterine leiomyomata to estrogens and/or progestins may be related to the histological features of the tumors. This should be realized when studying the steroid receptor levels in the tumours and possibly also when planning an endocrine therapy for the leiomyomata.

Adult↗
PubMed1990

Immunoreactive and estrogen-binding estrogen receptors, and progestin receptor levels in uterine leiomyomata and their parental myometrium.

Estrogen receptor (ER) and progestin receptor (PR) levels in the myometria and uterine leiomyomata of forty-four women were studied. A radio-ligand method and an immuno-enzymatic method were used for ER measurement, and only a radio-ligand method was used for PR measurement. The leiomyomata contained significantly more PR and estrogen-binding ER than their parental myometria but not the immunoreactive ER per mg of DNA. Nuclear extracts from the myometria contained a high amount of the estrogen-nonbinding immunoreactive ER; in the leiomyomata, the bulk of this particular ER fraction was extracted with cytosol. Dissimilar distribution patterns of immunoreactive, estrogen-nonbinding ER in leiomyomata and normal myometria suggest that an impaired metabolism of ER may contribute to myoma growth.

Adult↗
PubMed1983

Malignant transformation of mucinous ovarian cystadenomas of intestinal epithelial type.

We studied 116 benign and 18 borderline malignant mucinous ovarian cystadenomas. Their epithelial lining was compared with normal epithelium of the uterine cervix and that of the small and large intestines, by both light and electron microscopy as well as histochemically. This morphological and histochemical analysis enabled us to subdivide mucinous cystadenomas into cervical, mixed and intestinal epithelial types. The epithelial cells of intestinal type tumours exhibited histochemical reactions very similar to, or identical with, those found in both immature and mature cells of intestinal mucosa. Malignant transformation was found in intestinal type mucinous cystadenomas only. Ultrastructural investigations of six neoplasms (four of intestinal and two of cervical epithelium type) confirmed the results found with the light microscope.

Adolescent↗
PubMed1981

Germ cell tumors in monozygous twins with gonadal dysgenesis and 46,XY karyotype.

Monozygous twin phenotypic females, aged 18, with primary amenorrhea and a 46,XY karyotype and bearing germ cell tumors are described. Patient 1 had a large pelvic tumor involving the uterus, oviduct, and intestine. Histology revealed the choriocarcinoma pattern. No ovarian or testicular tissue was identified. The preoperative serologic pregnancy test was positive. After surgery the urinary human chorionic gonadotropin value was 2500 units per 24 hours. The patient died 2 months after the operation despite chemotherapy. Patient 2 was admitted to the hospital for evaluation following the discovery of pelvic tumor in her twin sister. She had 1 streak gonad harboring gonadoblastoma and, on the opposite side, a gonadoblastoma overgrown by dysgerminoma. The patient is well 4 years after surgery. The risk of malignancy in individuals with XY gonadal dysgenesis is emphasized, and examination and confirmation of karyotype of siblings are recommended.

Adolescent↗