ABSTRACT
Various infectious agents like Ebstein Barr Virus [EBV], HTLV-1 and Helicobacter pylori have known as etiologic factors in different sub-types of lymphoma. Although Hepatitis C virus [HCV] has not only been important for its hepatotropism and hepatitis development, but also in recent years its association with some forms of non- Hodgkin's lymphoma [NHL], especially B cell NHL, has reported. In some countries, the rate of B cell NHL development in HCV infected patients was four times more than general population, and then association between HCV infection and B-NHL has proposed in many studies. To assess this relationship in our geographic region, in a descriptive study; we have evaluated patients with B-NHL in an oncology center in northeast of Iran for HCV infection. Out of 128 B-NHL patients, HCV Antibody test [with third generation ELISA method] was positive in only one patient, which confirmed with Nested PCR technique. Then the frequency of HCV infection in our patients was 0.7%. Respecting to the incidence of HCV infection in general population in Iran, which is between 0.5-1%, we couldn't show higher prevalence of HCV infection in NHL patients than general population, and hence couldn't confirm relation between HCV infection and B-NHL in our region
ABSTRACT
Systematic treatments such as hormone and chemotherapy are selected according to tumor characteristic after major therapeutic approaches such as surgery. This study attempted to analyze and compare the status of Estrogen Receptor [ER] and Progesterone Receptor [PR] in primary and recurrent sites of breast cancer in patients. We reviewed all medical records of breast cancer women who were treated between January 1995 and December 2008. One hundred eighty two out of 2241 patients [8.12%] had a metastatic breast cancer. Amongst them 48 patients had tumor and biopsy-driven samples, however 13 samples were destroyed and only 35 samples were investigated in this study, therefore 35 malignant biopsy specimens of breast cancer patients were examined by immunohistochemistry essay for ER and PR. Binominal proportional test and Chi square test were conducted to determine the significant correlation between positive cases of hormone receptors among primary and metastases sites. Hormone Receptor in the primary tumor [HR1] of 9 patients [25.7%] was positive [ER1 and/or PR1] and in the recurrent areas [HR2] of 8 patients [22.9%] was positive [either ER2 or PR2 positive]. Kappa coefficients of diagnostic agreement in primary and recurrent cases were 0.077 and 0.125 for estrogen and progesterone, respectively which indicated that the amount of coefficient of agreement is not considerable between primary and recurrent sites. The current study indicated that receptor status in recurrent tumors did not pose predictable value based on the analysis of hormone receptors in primary stage, so it is not an appropriate basis to set up therapeutic protocol in the metastatic patients. Therefore, tissue sampling and hormone receptor reanalyzing of metastatic sites should be considered in these cases