Cotyledonoid dissecting leiomyoma of the uterus: report of two cases.

BACKGROUND: Cotyledonoid dissecting leiomyoma (Sternberg tumor) is a rare variant of the uterine smooth muscle tumor. Although this tumor is a benign tumor clinically and pathologically, the appearance and growth pattern is unusual, so it may be misdiagnosed as malignancy. CASE REPORTS: We report two cases of cotyledonoid dissecting leiomyoma of the uterus that occurred in two 44- and 31-year-old women, respectively. Total hysterectomy and bilateral salpingo-oophorectomy were performed in one of the patients, and myomectomy was done in the other one. Macroscopically, both tumors were grape-like exophytic masses resembling placental tissue. The patients were well after surgery, and one patient gave birth. To our knowledge, this is the first case report of a successful delivery after myomectomy of this tumor. CONCLUSION: To prevent aggressive surgery it is important to recognize that this tumor is a benign and unusual appearing variant of leiomyoma. A fertility-sparing surgical procedure should be considered if the patient wishes to preserve her fertility.

[HPV and cervical cancer examination--prospects in cervical cancer examination].

Cervical cancer is caused by infection with human papillomavirus (HPV), discovered by Zur Hausen, a 2008 Nobel laureate in medicine. Regular examination is essential for the prevention of cervical cancer. Two problems have been pointed out regarding cervical cancer examination in Japan: low rates of participation in the examination, and the accuracy of cytological diagnoses. If HPV testing is conducted in combination with cytological diagnoses performed at present, it is estimated that higher levels of screening accuracy will be achieved, and almost 100% of cervical cancer will be detected as a precancerous lesion. Moreover, an HPV vaccine was developed. The incidence of cervical cancer is expected to decrease almost to zero in the near future because of increased awareness of HPV vaccination and cancer screening including HPV testing. In this symposium, four specialists will give lectures on present cervical cancer examinations, including methods for the cytological diagnosis and reporting forms, and their problems. We will also discuss prospects in HPV testing and cervical cancer examination.

[The significance of the combined usage of cytology and the HPV test in cervical cancer screening].

BACKGROUND: In the United States, the combined usage of cytology and the HPV test is employed in cervical cancer screening, but, in Japan, only cytology is performed in most cases. We conducted a comparative analysis of histopathological diagnoses by colposcopy, cytology, and the HPV test, and evaluated the effectiveness of cytology and the significance of its combined use with the HPV test. METHODS: We compared the detection rates using the test for high-risk HPV and cytology, which were conducted in cases with various histological diagnoses. The hybrid capture method was used in the HPV test. The blind test was conducted by 3 cytologists in 14 cases in which the cytological differed from the histological diagnosis by more than 2 classes. RESULTS: There were 89 cases above class IIIb or CIN 3, and 26 cases were below class IIIa. A total of 107 cases were positive on the HPV-DNA test, and 8 cases were negative. CONCLUSION: Cytology is essential as a morphological diagnostic method in cancer screening. In contrast, the HPV test detects the cause of cervical cancer. Therefore, the combined usage of cytology and the HPV test as initial screening for cervical cancer would facilitate the diagnosis of a premalignant lesion or early-stage cervical cancer more promptly and accurately.

[Correlation between human papilloma virus infection in cervical lesions and expression of p53, p21 proteins and Ki-67].

BACKGROUND: Human papilloma virus (HPV) is the most important factor in the oncogenic mechanism of cervical tumor. Furthermore, in a separate multi-stage process, abnormality in cell cycle kinetics has been demonstrated. In order to elucidate the oncogenic mechanism, we examined the relationship between cervical carcinoma and HPV infection, and also investigated the expression of p53 and p21 proteins as well as the cell proliferation capability by detecting Ki-67, and analyzed the correlations of these factors. MATERIALS AND METHODS: We studied the biopsy specimens from 107 patients of chronic cervicitis, cervical intraepithelial neoplasia and squamous cell carcinoma (SCC). HPV DNA was detected by the hybrid capture method. Immunostaining by LSAB procedures were performed using antibodies to p53 protein, p21 and MIB-1. The PCR-denaturing gradient gel electrophoresis (DGGE) method was used to search for mutation in exons 5, 6, 7 and 8 of p53. RESULTS: Of 107 cases studied, high-oncogenic HPV was detected in 80 cases (74.8%) with a particularly high prevalence in SCC. No correlation was observed between HPV infection and expression of p53, p21 or Ki-67. The degree of positivity of Ki-67 expression tended to be higher with disease progression. Cases strongly positive (2+) for p53 and p21 proteins were weakly positive for Ki-67, and cases positive (1+) or negative for p53 and p21 were strongly positive for Ki-67. CONCLUSION: In oncogenesis of cervical carcinoma, p53 protein, p21 protein and HPV may act separately as independent factors in some cases, and there is a strong possibility that other factors are involved.

[A 67-year-old man with rt. hand resting tremor and rigidity after lt. putaminal hemorrhage].

We report a 67-year-old man with rt. hand resting tremor and rigidity after lt. putaminal hemorrhage. He had hypertension and alcoholic liver cirrhosis as past history. When he was 62 years old, he realized rt. hemiplegia suddenly and admitted in Juntendo Urayasu hospital. Brain CT showed intracranial hemorrhage in lt. putamen. He was treated with neurosurgery operation for rejecting hemorrhage. Mild rt. hemiparesis remained but he could live independently. He was medicated sulpiride for depression after cerebrovascular accident. On 63 years old, resting tremor and rigidity appeared on his rt. hand. His doctor stopped sulpiride and treated with L-Dopa/Benserazide and trihexiphenidyl. His parkinsonism was stable with this treatment for four years. His doctor considered that he was Parkinson's disease or drug-induced parkinsonism. On 67 years old, he became akinetic-mutism state suddenly and admitted in the hospital. His consciousness turned alert soon and discharged after two weeks. This episode was considered as epilepsy. After one week from discharge, he was found cardio-pulmonary arrest and confirmed dead in the hospital. Post-mortem examination revealed necrosis in the posterior-lateral part of lt. putamen due to hemorrhage. However, there was no degenerative change of the striatum or the substantia nigra and no Lewy bodies in his brain. Other pathological changes were also not found. His parkinsonism might be caused putaminal pathology due to hemorrhage.

[The relationship with human papilloma virus DNA in cervical adenocarcinoma].

Recently, cervical adenocarcinoma has been increasing especially among young women and account for 10-20% of cervical cancer. However, the detection rate of HPV-DNA was 35-85% and lower than that of squamous cell carcinoma. Furthermore, the relationship with HPV in cervical adenocarcinoma was not much investigated in Japan, so we studied HPV status in cervical adenocarcinoma by in situ PCR method using biotin-labeled DNA probes, because in situ PCR method possesses the advantages of both PCR and in situ hybridization in being highly sensitive and enabling visualization of the cellular localization of the DNA. HPV infection was analyzed in 60 cervical adenocarcinomas, including 1 adenocarcinoma in situ and 15 adenosquamous carcinomas. HPV-DNA was detected in 47 of all 60 cases(78%): 35 of 45(78%) in adenocarcinomas and 12 of 15(80%) in adenosquamous carcinomas. No significant correlation was found between the HPV-DNA detection rate and histological subtypes of adenocarcinoma. In conclusion, cervical adenocarcinoma demonstrates a high prevalence of HPV-DNA as well as other previous studies. Therefore, HPV infection plays a very important role in not only squamous cell carcinoma but also adenocarcinoma in uterine cervix.

The utility of serum N-ERC/mesothelin as a biomarker of ovarian carcinoma.

Ovarian carcinoma has been difficult to diagnose at an early stage. Recently, it has been recognized that the measurement of blood N-ERC/mesothelin levels aids early detection in and postoperative therapeutic monitoring of patients with mesothelioma, who have been exposed to asbestos. ERC/mesothelin has also been reported to be expressed in ovarian carcinoma. We determined serum N-ERC/mesothelin levels in patients with ovarian carcinoma using an enzyme-linked immunosorbent assay (ELISA). In addition, we immunohistochemically evaluated surgically resected specimens for C-ERC/mesothelin expression. As a result, of the 32 patients with ovarian tumors (18 carcinoma, 2 borderline tumors), one patient with serous adenocarcinoma showed increased N-ERC/ mesothelin levels. Immunohistochemically, of the 20 ovarian tumor (carcinoma and borderline tumor) specimens evaluated for serum N-ERC/mesothelin, 9 (45.0%) were positive for C-ERC/mesothelin. The C-ERC/mesothelin-positive specimens were found to be serous and clear cell adenocarcinomas. If serum N-ERC/mesothelin, which is considered useful for early detection in and therapeutic monitoring of patients with mesothelioma, may also be used for ovarian carcinoma monitoring, it may be a valuable serum tumor marker for the early detection of ovarian carcinoma.

Human papillomavirus localization in cervical adenocarcinoma and adenosquamous carcinoma using in situ polymerase chain reaction: review of the literature of human papillomavirus detection in these carcinomas.

Many studies have suggested that human papillomavirus (HPV) infection plays an important role in the carcinogenesis of the cervical adenocarcinoma. However, the prevalence of HPV infection in cervical adenocarcinoma and adenosquamous carcinoma varies among the studies. Cervical adenocarcinoma (24 cases) and adenosquamous carcinoma (16 cases), including the underlying non-neoplastic epithelium were examined for HPV-DNA using in situ polymerase chain reaction (PCR), which enabled visualization of the localization on a glass slide. In adenocarcinoma, HPV-DNA was found in 13 cases (54%) and in eight cases in underlying non-neoplastic epithelium, resulting in a total of 21 positive cases (88%). In adenosquamous carcinoma, HPV-DNA was detected in 12 cases (75%) and and the HPV-DNA localization of each component was pure adenocarcinoma, 28.6%; mixed, 54.5%; and pure squamous cell carcinoma, 83.3%. In the underlying non-neoplastic epithelium, HPV-DNA was found more frequently in the squamous epithelium (73.3%) than the cervical glands (6.3%). In conclusion, HPV-DNA was detected in 54% of adenocarcinoma, and the rate was elevated by HPV localization in the underlying non-neoplastic epithelium. HPV infection in the underlying squamous epithelium might be related to the carcinogenesis, even in cervical adenocarcinoma. HPV-DNA localization was different in each component of adenosquamous carcinoma.

Small cell carcinoma of the prostate with hypercalcemia.

We present a case of small cell prostate carcinoma with hypercalcemia in a 75-year-old man. He was diagnosed as having stage T3bN1M0 adenocarcinoma of the prostate. His serum prostate-specific antigen level was reduced to below the normal range after a combination treatment of a luteinizing hormone-releasing hormone agonist and flutamide for prostate carcinoma. He subsequently experienced increasing fatigue, poor appetite, short time loss of consciousness and pain in his lower abdomen. His serum calcium level and carcinoembryonic antigen were increased. He died 5 months from the start of treatment. The autopsy revealed small cell carcinoma of the prostate and multiple metastasis of the lung, liver, pancreas, lymph nodes and spine.

Sarcomatoid carcinoma and carcinosarcoma of the urinary bladder.

Two cases, sarcomatoid carcinoma and carcinosarcoma, of the urinary bladder are reported. A 68-year-old man with sarcomatoid carcinoma underwent total cystectomy and was alive and had had no recurrence after 21 months. A 78-year-old woman with carcinosarcoma underwent total cystectomy, but she died from increasing multiple lung metastases 4 months after surgery. The histopathological characteristics of both neoplasms are reported and discussed.

Prevalence of human papillomavirus infection and correlation with cervical lesions in Japanese women.

PURPOSE: To investigate the prevalence of human papillomavirus (HPV) infection in patients attending a gynecologic outpatient department, and to correlate the infection status with the presence or absence of uterine cervical lesions and the grades assessed by cytological or histological examinations. METHODS: Five hundred and seventy-two subjects were studied. In all subjects, HPV detection by the hybrid capture method and a cervical cytological examination were performed RESULTS: The HPV-positive rate in subjects with normal cytology was 12.3%. The detection rate was high (21.7%) in subjects aged in the twenties and low in the forties, and HPV was not detected in subjects aged in the sixties and seventies. When HPV-positive rates were examined according to cytological or histological grades, the rates were higher in subjects with abnormal cytology (P < 0.01) or cervical intraepithelial neoplasia (CIN) or squamous cell carcinoma compared with those with normal cytology. CONCLUSION: Diagnosis of HPV infection is also important for the prediction of progression to CIN and cervical cancer.

Secretory carcinoma of the breast: an immunohistochemical and ultrastructural study.

Abstract We report a rare case of secretory carcinoma of the breast in a 50-year-old Japanese woman. The patient had been aware of a right breast tumor for 8 years, but had left it untreated. The tumor enlarged in size and became painful, and she visited our hospital. Breast carcinoma was diagnosed, and mastectomy was performed. Histopathological examination revealed features of a secretory carcinoma characterized by prominent secretory activity in the glandular and microcystic spaces, with some areas showing a follicular pattern resembling the thyroid gland. The secretory material was PAS-positive and immunohistochemically alpha-lactalbumin-positive. Ultrastructurally, the tumor cell contained many secretory vacuoles in the cytoplasm. In addition, extracellular and intracytoplasmic lumina were conspicuous; these were lined by microvilli projection and contained secretory material. By flow cytometric analysis, the DNA index was 1.14, which was diploid, showing relatively low proliferative activity.

Huge seminoma developed in a patient with testicular feminization.

We report a 36-year-old patient who presented with primary amenorrhea and was found to have a giant abdominal tumor. There was a family history of primary amenorrhea in her two aunts. Physical and hormonal examinations as well as chromosomal analysis led to a diagnosis of testicular feminization. The patient underwent tumorectomy along with pelvic and para-aortic lymphadectomy. The pathological diagnosis was bilateral seminoma of the testis with metastasis to para-aortic lymph nodes. Nowadays, cases of undiagnosed seminoma developing into a huge abdominal mass in patients with testicular feminization are rarely encountered, since surgical castration is generally recommended as early as possible after puberty. In testicular feminization, the risk of malignant transformation of the dysgenetic male gonads increases substantially after puberty. Early and correct diagnosis together with careful follow-up are critically important in managing testicular feminization, a rare congenital disorder.