bromochloroacetic-acid and Ovarian-Cysts

A 6-year-old female rabbit was presented to a veterinary clinic, and the result of ultrasound examination suggested a tumor in the uterine tube. Subsequently, both ovaries and uterus were surgically removed. In gross, a single large cyst in the right ovary and enlargement of the left uterine tube were observed. Histological examination revealed that the cyst had developed in the hilus of the ovary and was lined by single-layered cuboidal cells. In the left uterine tube, a tumor composed of epithelial cells arranged in tubular structures and pleomorphic cells between the tubular structures was observed. Immunohistochemically, the epithelial cells of the cyst were positive for pan-cytokeratin, cytokeratin 18, CD10, E-cadherin, calretinin and estrogen receptor; the tumor cells of the left uterine tube were positive for pan-cytokeratin, cytokeratin 18, E-cadherin, vimentin, calretinin and estrogen receptor. From these results, the cyst was diagnosed as cystic rete ovarii, and the tumor was diagnosed as adenoma of the uterine tube. This case is the first to demonstrate cystic rete ovarii and uterine tube adenoma in rabbits.

Topics: Adenoma; Animals; Cadherins; Calbindin 2; Fallopian Tubes; Female; Immunohistochemistry; Keratins; Ovarian Cysts; Rabbits; Receptors, Estrogen; Vimentin

Endometrium is derived from intermediate mesoderm via mesenchymal to epithelial transition (MET) during development of the urogenital system. By retaining some imprint of their mesenchymal origin, endometrial epithelial cells may be particularly prone to return to this state, via epithelial to mesenchymal transition (EMT). We hypothesized that pelvic endometriosis originates from retrograde menstruation of endometrial tissue and that EMT-like and MET-like processes might be involved in the pathogenesis of pelvic endometriosis.. We investigated commonly used molecular markers for EMT, including cytokeratin, E-cadherin, N-cadherin, vimentin, S100A4 and dephosphorylated beta-catenin by immunohistochemistry in different forms of pelvic endometriosis: deep infiltrating endometriosis, ovarian endometriosis and superficial peritoneal endometriosis (red and black lesions), as well as samples of menstrual endometrium, other benign ovarian cysts (mucinous and serous cyst adenoma), and abdominal scar endometriosis for comparison.. Epithelial cells of red peritoneal lesions and ovarian endometriosis showed less epithelial marker (cytokeratin, P < 0.0001) expression and more mesenchymal marker (vimentin and/or S100A4, P < 0.0001) expression than those of menstrual endometrium. In contrast, epithelial cells of black peritoneal lesions and deep infiltrating endometriosis showed more epithelial marker (E-cadherin) expression than those of menstrual endometrium (P < 0.03), red peritoneal lesions (P < 0.0001) and ovarian endometriosis (P< 0.0001), but maintained expression of some mesenchymal markers (vimentin, S100A4). In addition, dephosphorylated beta-catenin protein expression was significantly higher in epithelial cells of deep infiltrating endometriosis (P < 0.0001) than in epithelial cells of red and black peritoneal lesions and ovarian endometriosis.. EMT-like and MET-like processes might be involved in the pathogenesis of pelvic endometriosis.

Topics: Adult; beta Catenin; Biomarkers; Cadherins; Cell Differentiation; Cicatrix; Endometriosis; Epithelial Cells; Epithelial-Mesenchymal Transition; Female; Humans; Keratins; Menstrual Cycle; Ovarian Cysts; S100 Calcium-Binding Protein A4; S100 Proteins; Vimentin

Ovarian cyst is common incidental finding in humans and many animals and includes follicular cysts, cystic rete ovarii and mesonephric duct cysts. Ovarian cyst is often associated with reproductive disorders in humans and animals. We found accidentally bilateral cystic masses in ovaries in an African green monkey. Grossly, the left and right ovarian cystic masses were single unilocular cystic structures measuring 0.6 and 1.8 cm in diameter, respectively. Histologically, both cysts were thin-walled structures that arose from the center of the ovary and displaced ovarian tissue peripherally. The cysts were lined by a single layer of nonciliated low cuboidal epithelium. Immunohistochemically, epithelial cells in the cysts were positive for cytokeratin, and the stromal cells were positive for smooth muscle actin but negative for vimentin. These results suggest that these ovarian cysts in an African green monkey are cystic rete ovarii. To our knowledge, this is the first report of cystic rete ovarii in African green monkeys and may be of value in relation to research of the pathogenesis and treatment of ovarian cyst.

Topics: Actins; Animals; Animals, Laboratory; Chlorocebus aethiops; Female; Immunohistochemistry; Keratins; Korea; Monkey Diseases; Ovarian Cysts; Stromal Cells; Wolffian Ducts

To investigate the common characteristics of a rare entity of ovarian cystic teratoma with intracystic floating balls in conjunction with a case.. Case report.. University hospital.. A 41-year-old woman with abdominal discomfort and a 2-year obscure history of an ovarian cyst.. Right salpingo-oopherectomy by laparotomy.. Ultrasonography and magnetic resonance imaging (MRI).. Ultrasonographic examination revealed a cystic mass (>10 cm) with a unique appearance of multiple floating balls on the lower right quadrant of the abdomen. The MRI showed the same balls with a slightly high fat content. Histopathological diagnosis was mature cystic teratoma and the balls were mostly made of keratin.. The appearance of intracystic floating balls is rarely seen but is pathognomonic for mature cystic teratoma. When this typical appearance is found on ultrasonography the value of other diagnostic tests, such as tumor markers, serological tests for echinococcosis, computerized tomography (CT), and MRI, can be considered as limited.

Topics: Adult; Dermoid Cyst; Female; Humans; Keratins; Magnetic Resonance Imaging; Ovarian Cysts; Ovarian Neoplasms; Ovariectomy; Teratoma; Ultrasonography, Doppler, Color

Several experimental models have been developed for the study of the polycystic ovarian syndrome in the rat. In the present study, the syndrome was induced by exposure to constant light, and the expression of cytoskeletal proteins in the follicular wall was evaluated by immunohistochemistry. We analyzed the immunohistochemically stained area (IHCSA) by image analysis to evaluate the expression of intermediate filaments (vimentin, desmin, cytokeratins, gliofibrillary acidic protein and neurofilaments) and alpha-smooth muscle actin (alpha-SMA) in cystic ovaries in relation to normal ovaries. The granulosa cell layer of cystic follicles had a significantly greater IHCSA for vimentin than the normal antral follicles. This difference was also significant between atretic and antral follicles. Cytokeratins showed a very low expression in the granulosa cells of antral follicles of control ovaries while in granulosa cells of atretic and cystic follicles they showed a significantly higher IHCSA. Immunohistochemical localization of desmin and alpha-SMA was restricted to the theca externa. Immunoreactivity for gliofibrillary acidic protein and neurofilament was negative. The highest intensity in the staining with vimentin and cytokeratins observed in the granulosa cells of the cystic follicles is probably due to structural and functional changes that occur during the process of cystogenesis and they could be associated with intense changes in the expression of cytoskeletal proteins that may be essential to the proper cellular functioning.

Topics: Actins; Animals; Cytoskeletal Proteins; Desmin; Disease Models, Animal; Female; Image Processing, Computer-Assisted; Immunoenzyme Techniques; Keratins; Light; Ovarian Cysts; Ovarian Follicle; Ovary; Polycystic Ovary Syndrome; Rats; Rats, Wistar; Vimentin

To determine whether Brenner tumors and transitional cell carcinomas (TCCs) of the ovary are urothelial in type, the immunoprofiles of 14 Brenner tumors, including three malignant examples, and eight ovarian TCCs were compared with those of Walthard nests, urothelium, 12 urinary bladder TCCs and 17 ovarian adenocarcinomas (serous, endometrioid, mucinous, and undifferentiated type). The immunohistochemical stains used included those for cytokeratins CKs 5/6, CK7, CK8, CK13, and CK20, vimentin, CA125, and the specific urothelial differentiation marker uroplakin III. CK7 and CK8 were broadly expressed in most tumors of ovary and bladder examined, while vimentin was focally present in some ovarian TCCs and adenocarcinomas. As in normal and neoplastic bladder urothelium, urothelial markers, including uroplakin III, CK13, and CK20, were detected in the epithelial nests of Brenner tumors. Brenner tumor cells also expressed uroplakins Ia and II. CA125 was observed focally in some Brenner tumors. In contrast, TCCs of the ovary and Walthard nests lacked uroplakins and were essentially negative for CK20 and CK13 but quite strongly expressed CA125. This immunophenotype closely resembled that found in ovarian adenocarcinomas. Thus, it appears that the only true urothelial-type ovarian neoplasm is the Brenner tumor, whereas ovarian TCC most likely represents a poorly differentiated adenocarcinoma with a morphologic transitional cell pattern. These results may explain the controversies as expressed in the recent literature concerning TCC of the ovary and establish its place among the ovarian adenocarcinomas of müllerian type.

Topics: Adenocarcinoma; Brenner Tumor; Carcinoma, Transitional Cell; Cell Transformation, Neoplastic; Female; Humans; Keratins; Membrane Glycoproteins; Ovarian Cysts; Ovarian Neoplasms; Urinary Bladder Neoplasms; Uroplakin III; Urothelium

Primary ovarian carcinomas with unusual histologic patterns can be difficult to differentiate from metastases. In this study, we reviewed 15 cases of mixed-epithelial carcinoma (12 serous, 1 serous and endometrioid, 1 endometrioid, 1 undifferentiated) with a predominant microcystic pattern and signet-ring cells. The patients' ages ranged from 31 to 78 (mean 58) years. The microcystic component in 11 patients had features of high-grade carcinoma and in 4 patients had features of low-grade carcinoma associated with areas of borderline tumor. The tumors in all 15 patients showed a predominant microcystic growth pattern composed of small cysts that were variable in size and shape. Signet-ring cells were also present in all cases (diffusely in nine cases, focally in six cases) within the neoplastic epithelial proliferation. Mucin was present in the lumina of some of the microcysts and in the cytoplasm of most of the signet-ring cells. A microcystic pattern and mucin-containing signet-ring cells can be seen as small foci or as a predominant component in primary epithelial nonmucinous ovarian carcinomas. It is important for pathologists to recognize these unusual findings in ovarian neoplasms, because they may produce a confusing apperance, even potentially suggesting a metastasis.

Topics: Adult; Aged; Carcinoma; Carcinoma, Endometrioid; Carcinoma, Signet Ring Cell; Cell Nucleus; Cystadenocarcinoma; Cystadenocarcinoma, Papillary; Cytoplasm; Female; Humans; Keratins; Middle Aged; Mucins; Ovarian Cysts; Ovarian Neoplasms

Collagenous spherulosis (CS) is a rare lesion which is an incidental finding in breast and salivary glands. It is characterized by fibrillar spherules exhibiting an intrinsic radiating or concentric pattern which are surrounded by myoepithelial cells. This entity can be misdiagnosed as adenoid cystic carcinoma and in-situ ductal carcinoma.. We report here the first case of CS arising in a borderline endometrioid tumour of the ovary where it merged with squamous metaplasia.. This observation illustrates another pitfall of CS which can be misidentified as keratin pearls. The pathogenesis remains unclear but it has been claimed that the accumulation of basement membrane material may be due to the proliferation of pre-existing myoepithelial cells that secrete matrix components. Since ovarian tumours do not contain myoepithelial cells, one should assume that the epithelial cells differentiate towards myoepithelial cells as it has been shown in vitro and ex vivo.

Topics: Adult; Carcinoma, Endometrioid; Collagen; Diagnosis, Differential; Diagnostic Errors; Extracellular Matrix; Female; Humans; Immunohistochemistry; Keratins; Metaplasia; Ovarian Cysts; Ovarian Neoplasms; Ovary

The aim of the present study was to evaluate the clinical usefulness of the cytokeratin tumor marker M3/M21 as a screening, prognostic, and monitoring marker for ovarian cancer and as a predictive marker in patients with adnexal masses. In order to determine the specificity of the M3/M21 test we investigated M3/M21 serum levels in several benign conditions. The cytokeratin tumor markers M3/M21 and Tissue Polypeptide Specific Antigen (TPS) were also investigated in the follow-up of ovarian cancer patients. We evaluated M3/M21 serum levels in 75 patients suffering from ovarian cancer FIGO stages Ia to III, using a prototype immunoradiometric assay (IRMA). Sera of patients with benign cysts, endometriosis, pelvic inflammatory disease, inflammatory bowel disease and liver cirrhosis were evaluated in 90, 10, 38, 10, and 20 cases, respectively. Furthermore, we analyzed TPS serum levels by means of IRMA during the follow-up of 40 patients suffering from ovarian cancer. With a sensitivity of 57% and a specificity of 95% M3/M21 was not suitable as a screening marker for ovarian cancer. Although M3/M21 was able to discriminate between ovarian cancer and benign adnexal tumors (univariate logistic regression, p = 0.0003), M3/M21 did not provide additional information (in addition to CA 125) (multivariate logistic regression, p = 0.2). M3/M21 serum levels were elevated in several benign conditions such as liver cirrhosis and inflammatory bowel disease. In ovarian cancer patients elevated M3/M21 serum levels prior to therapy were associated with a poor overall and disease-free survival (log-rank test, p = 0.03, and log-rank test, p = 0.01, respectively). In patients with recurrent ovarian cancer M3/M21 and TPS showed median lead-time effects of 3.2 and 3.9 months, respectively. M3/M21, while obviously not suitable for screening or differential diagnosis of adnexal masses, could be useful as an additional prognostic factor. M3/M21 and TPS are valuable tumor markers in the follow-up of ovarian cancer patients.

Topics: Adult; Aged; Antibodies, Monoclonal; Antibody Specificity; Biomarkers, Tumor; Female; Humans; Keratins; Middle Aged; Neoplasm Staging; Ovarian Cysts; Ovarian Neoplasms; Peptide Fragments; Sensitivity and Specificity; Tissue Polypeptide Antigen

Five cases of epidermoid cysts of the ovary are added to the two-reported in the literature. This rare lesion was uniformly an incidental finding in the study of hysterectomy specimens. Its main interest is in its histogenesis, which is suggested to involve metaplasia of the coelomic surface epithelium of the ovary. Ultrastructural evidence is one case strongly favors this possibility, thus adding another line of differentiation to those already established for the multipotent coelomic epithelium. However, some cases may be teratoid in origin, as has been suggested for the analogous lesion in the testis.

Topics: Adult; Epidermal Cyst; Female; Humans; Keratins; Middle Aged; Ovarian Cysts; Ovary