Cox-2, EGFR, and ERBB-2 expression in cervical intraepithelial neoplasia and cervical cancer using an automated imaging system.

We hypothesized that the activation of cyclooxygenase (COX)-2, epidermal growth factor receptor (EGFR), and ErbB-2 signaling is required for cervical intraepithelial neoplasia (CIN) lesions to progress to cervical cancer. A retrospective analysis was performed in 179 patients with Stage I squamous cell carcinoma (SCC) and 233 patients with CIN (112 CIN I, 47 CIN II, and 74 CIN III). COX-2, EGFR, and ErbB-2 expression was analyzed by immunohistochemistry using the ACIS III automated imaging system. The mean expression of COX-2, EGFR, and ErbB-2 was compared between the various stages of CIN and SCC. COX-2 mean expression was predominantly cytoplasmic, increasing significantly from CIN I to CIN II, CIN III, and SCC (P<0.001). EGFR mean expression also rose significantly during tumor progression from CIN I to SCC (P=0.001). CIN I samples were negative for ErbB-2 expression. CIN II, CIN III, and SCC were considered positive for ErbB-2 expression in 2.2%, 14%, and 16.2% of cases, respectively. There was also a statistically significant correlation between increase of ErbB-2 positivity from CIN to SCC. We conclude that COX-2, EGFR, and ErbB-2 expression increase significantly during the progression of CIN to cancer.

Progesterone receptor (PROGINS) polymorphism and the risk of ovarian cancer.

The present case-control study evaluates the role of the progesterone receptor (PR) polymorphism known as PROGINS as a risk factor for ovarian cancer development and investigates the association between these genetic variants and clinical/pathologic variables of ovarian cancer. PROGINS polymorphism was examined, by polymerase chain reaction, in a total of 80 patients with ovarian cancer and 282 control subjects. The frequencies of PROGINS polymorphism T1/T1, T1/T2, and T2/T2 were 71.3, 15.0 and 13.8% in ovarian cancer patients and 78.37, 21.63 and 0% in controls, respectively. The chi(2)-test showed a higher incidence of the T2/T2 genotype (P=0.001) in the ovarian cancer group. In addition, women carrying a mutated allele (T2) showed approximately 2.2 times higher risk of ovarian cancer development as compared to women who have a variant allele (odds ratio (OR)=2.2; 95% CI=1.80-3.54). Regarding the clinical and pathologic findings observed within the cancer group, there was a significant correlation between PROGINS polymorphism and patients with a familial history (chi(2)=6.776; P=0.009; Fischer exact test, P=0.01). In this regard, patients with familial antecedents have a 4.7 times higher likelihood to have at least one risk allele (T2) as compared with patients without familial antecedents (OR=4.69; 95% CI=1.38-15.87). No correlations were observed among the other variables. These data suggest that the PROGINS polymorphism T2/T2 genotype might be associated with an increased risk of ovarian cancer.

Schistosoma mansoni pseudo-cyst as a cause of chronic pelvic pain.

A case of mansoni schistosomiasis causing peritoneal inflammation and chronic iliac pain is reported. The patient complained of iliac pain for 6 months. Physical examination and sonographic evaluation found a tumor in the left iliac fosse. A pseudocyst was removed from the pelvic region. The histopathology confirmed the diagnosis of S. mansoni. This is a rare case of S. mansoni in the pelvic cavity.

Avaliaçäo histeroscópica do endométrio de pacientes com carcinoma de mama na pós-menopausa antes e após o uso de tamoxifeno / Hysteroscopical evaluation of the endometrium of post-menopausic patients with breast cancer before and after tamoxifen use

Objetivo: avaliar a influência do tamoxifeno no aspecto histeroscópico e histopatológico do endométrio de pacientes com câncer de mama na pós-menopausa, por meio da histeroscopia. Método: estudaram-se, prospectivamente, 46 pacientes, das quais 20 utilizaram a droga por período médio de 12 meses. Efetuou-se, antes e após o tratamento pelo fármaco, a histeroscopia associada à biópsia endometrial. Resultados: a taxa de endométrio ativo, antes e após a hormonioterapia adjuvante com tamoxifeno näo aumentou a taxa de atividade proliferativa endometrial em pacientes com câncer de mama na pós-menopausa. Observaram-se numerosas vesículas disseminadas por toda a cavidade uterina e isso constituiu o aspecto histeroscópico mais usual, talvez devido à atrofia cística do endométrio