No abstract available.
Carcinoma, Neuroendocrine* ; Cervix Uteri* ; Female ; Liver*

No abstract available.
Biopsy, Fine-Needle* ; Goiter*

Well-differentiated papillary mesothelioma (WDPM) of the peritoneum is considered to be a distinct subtype of peritoneal mesothelioma and has mostly behaved in a benign fashion. We report a case of WDPM in a 48-year-old-woman. It was incidentally found during a hysterectomy for a uterine cervical carcinoma. Grossly, the tumor was composed of multiple peritoneal nodules, measuring up to 2 cm. Microscopically, the nodules showed well-developed papillae lined by a single layer of cuboidal mesothelial cells. Immunohistochemical staining revealed a positive reaction for cytokeratin and a negative reacion for carcinoembryonic antigen and Leu-M1. Ultrastructurally, the tumor cells showed numerous long, slender microvilli and desmosomes.
Carcinoembryonic Antigen ; Desmosomes ; Hysterectomy ; Keratins ; Mesothelioma* ; Microvilli ; Peritoneum*

PSTT has been established as a separate entity distinct from choriocarcinoma since 1983, because of its different morphological features, biologic behavior and response to chemotherapy. Most cases of PSTT have indolent clinical courses, but there have been several reports showing malignant behavior resulted in death of the patient. We report a case of PSTT showing vaginal metastatis. In biopsy specimen, it was difficult to make differential diagnosis from squamous cell carcinoma of uterine cervix due to uniform and mononuclear cytologic characteristics. Immunohistochemical stains for hPL and hCG were not typical for either PSTT or choriocarcinoma. We suggest that poorly differentiated PSTT may synthesize the lesser amount of hPL than typical PSTT and it may behave more aggressively.
Diagnosis, Differential ; Biopsy

Twelve cases of primary malignant lymphoma of the central nervous system experienced between 1980 and 1990 were investigated by histological and immunohistochemical findings correlated with clinical observation. Of the 12 patients, 6 were male and 6 were female. Their ages ranged from 31 to 58 years(mean, 45.8 years). All Tumors were supratentorial except 1 case which was found in the spinal cord. The fronto-parietal lobe was the most common site, which accounted for 66.7%. Histologically, all the tumors showed unfavorable histology. Diffuse large cell type was the most frequent(66.7%). Immunohistochemical studies using monoclonal antibodies revealed predominance of B-cell phenotype. Although most cases were treated with a combination of surgery and irradiation, the outcome was poor in all.
Female ; Male ; Humans

Recently developed new classifications (Holland, Van Nuys, modified Lagios) of ductal carcinoma in situ (DCIS) linked to outcome have emphasized the importance of nuclear morphology rather than architecture. We have evaluated these three classifications in ductal carcinomas composed of in situ and invasive carcinomas. The reproducibility of three classifications was assessed (n=49), and the histological grade of the DCIS was compared with the histologic differentiation (modified Bloom & Richardson method) and nuclear grade (modified Black method) of the coexisting invasive ductal carcinoma (n=45). According to Holland classification, the DCIS component was poorly differentiated in 51.0%, intermediately differentiated in 40.8%, and well differentiated in 8.2%. Using the Van Nuys classification, the DCIS component was group 3 (high grade with or without necrosis) in 44.9%, group 2 (non-high grade with necrosis) in 28.6%, and group 1 (non-high grade without necrosis) in 26.5%. According to the modified Lagios classification, the DCIS component was high-grade in 42.8%, intermediate-grade in 32.7%, and low-grade in 24.5%. The histologic grades of the three classifications revealed significant correlations between Holland and Van Nuys classification (p<0.0001) and between Holland and modified Lagios classification (p<0.0001), especially in poorly differentiated/group 3/high-grade DCIS. The reproducibility of classification of the DCIS was 71.4% in the Holland, 61.2% in the Van Nuys, and 55.1% in the modified Lagios classifications. The grade of the DCIS showed significant correlation with the grade of coexisting invasive ductal carcinoma (p<0.0001), especially in poorly differentiated/group 3/high-grade DCIS. In conclusion, DCIS grade, determined by the Holland, Van Nuys or modified Lagios classifications, is closely correlated with the histologic grade of the invasive ductal component in tumors composed of in situ and invasive ductal carcinoma, and may be a useful factor to estimate clinical behavior of DCIS. In our experience the Holland classification is recommended for DCIS classification due to its high reproducibility.
Breast* ; Carcinoma, Ductal* ; Carcinoma, Intraductal, Noninfiltrating* ; Classification* ; Netherlands

We report a case of right broad ligament tumor with features of female adnexal tumor of probable wolffian origin. A 40-year-old woman presented with dysfunctional uterine bleeding. Ultrasonography revealed 1 10cm sized right parovarian solid mass. On microscopic examination, the tumor showed mixed pattern of tightly packed tubular structures and diffuse spindle cell proliferation. Immunohistochemical study demonstrated cytokeratin-and vimentin-positivity and carcino-embryonic antigen-negativity. The ultrastructural study showed prominent tubular structures, continuous basal lamina, definite junctional complex but no secretory granules or glycogen particles, favoring wolffian origin.
Female ; Humans

No abstract available.
Acute Generalized Exanthematous Pustulosis* ; Chickens* ; Eating* ; Hemodynamics* ; Lacquer*

We reviewed histological and immunohistochemical findings of the endometrium in 28 cases of ectopic pregnancy and 11 cases of intrauterine pregnancy without chorionic villi or syncytiotrophoblast. 1) Twenty cases(71.41/o) of ectopic pregnancy revealed gestational patterns and 8 cases(28.6%) showed non-gestational patterns, which were menstrual phase in 3 cases, proliferative phase in I case, early secretary phase in 3 cases and mid secretary phase in 3 cases, respectively. Implantation sites were present in 36.40/o of intrauterine pregnancy. 2) Endometrial spiral arterioles tend to be more prominent with frequent intimal proliferation and thickening of the wall in intrauterine pregnancy than in ectopic pregnancy although it was not statistically significant(p=0.271). 3) Deposition of fibrinoid material in the endometrium was present in 72.7% of intrauterine pregnancy and 25% of ectopic pregnancy. Thrombosis was present in 72.7% of intrauterine pregnancy and 5% of ectopic pregnancy. Hyalinized vessels were also present in 90.9% of intrauterine pregnancy and 200/o of ectopic pregnancy. These were statistically significant(p=0.0002, 0.0209 and 0.0004), but not diagnostic. 4) On immunohistochemical study for intrauterine pregnancy, the rates of positive reaction to human placental lactogen, cytokeratin and human chorionic gonadotropin were 45.5%, 45.5% and 9%, respectively. We concluded that HFIL and cytokeratin are reliable and sensitive markers for implantation site.
Pregnancy ; Female ; Humans

Carcinosarcomas of the female genital tract have generally been regarded as a type of sarcoma. Recent studies, however, suggest the tumor may be more closely related to carcinoma and may represent metaplastic carcinoma in histogenesis. We analyzed clinicopathologic and immunohistochemical features of 10 carcinosarcomas to evaluate the relative importance of the carcinomatous and sarcomatous components in metastasis and recurrence. The primary tumor originated in the uterine body in seven cases, the uterine cervix in two and the ovary in one. Patient,s ages ranged from 54 to 71 years (mean, 64). The most common symptom of the uterine mass was vaginal bleeding. The median survival time was 21 months following diagnosis in five cases. Surgico-pathologic FIGO stages of five patients who received an operation were stage III and IV, but clinical FIGO stage of three patients (60%) among them were I. Lymphovascular invasions were identified in seven areas; five vascular invasion lesions showed the carcinomatous component alone, one the sarcomatous component alone, and remained one admixture of both components. Metastatic and recurrent lesions to the paraaortic lymph node, ovary, pelvic wall, or vaginal vault showed characteristically carcinomatous component only. Immunohistochemically, positive reactions for cytokeratin and epithelial membrane antigen were noted in the sarcomatous component of five cases. Vimentin positivity was detected in carcinomatous component of three cases. We conclude that the dominant element in carcinosarcomas of the female genital tract is the carcinomatous component. The survival rate of carcinosarcoma is extremely poor. The surgico-pathologic stage is better indicator of survival than the clinical stage. Immunohistochemical findings suggest that carcinosarcoma may represent a metaplastic carcinoma in histogenesis.
Carcinosarcoma* ; Cervix Uteri ; Diagnosis ; Female* ; Humans ; Keratins ; Lymph Nodes ; Mucin-1 ; Neoplasm Metastasis ; Ovary ; Recurrence ; Sarcoma ; Survival Rate ; Uterine Hemorrhage ; Vimentin