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Background & Objective: Enteroparasitic infections constitute a serious public health problem in different populations including developed countries. Patients who receive chemotherapy of cancer have an increased probability of acquiring parsitic infections, generally with a high degree of severity. The aim of present study was to ascertain the frequency of intestinal parasites in patients admitted in oncology ward for chemotherapy. Materials & Methods: In a descriptive study, all the patients whith malignancy who admitted in Sina Hospital in Hamadan, Iran, during 2005 were included. Data including demographic characteristics, type of malignancy, and the time past from the diagnosis entered the questionnaires. A stool specimen were examined for each patients. Data were analyzed using SPSS software. Results: Out of 190 patients, 94 (49.5%) were male and 96 (50.5%) were female. The mean age was 48.518.7 years (12-88 years). Thirty-one (16.3%) patients were involved intestinal parasites. The most common parasites were: Ascaris (41.9%), Giardia (35.5%), Indolimax nana (3.2%), Blastocytis hominis (3.2%), and Cryptosporidium (3.2%). The highest prevalence of intestinal parasites belonged to 40-60 years age group Conclusion: This study indicated that, the prevalence of intestinal parasites in patients undergoing chemotherapy for malignancy is lower than general population, which can be related to the effect of antineoplastic agents.

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Background and Objective: There is not a general protocol strategy about the necessity of routine microscopic examination of tonsillar samples in children. This study was conducted to determine the histopathological characteristic of tonsillar tissue in 1250 children, Tabriz-Iran. Materials and Methods: This descriptive study was conducted on 1250 children (724 male and 526 female) aged 2-14 years old who underwent tonsillectomy in Tabriz, Iran during 2008-11. Variables including age, sex, clinical diagnosis and surgical indications were recorded. Paraffin blocks were prepared from samples of tonsillectomy and stained with haematoxylin and eosin. Histopathologocal results were categorized in four groups: Follicular hyperplasia, follicular hyperplasia with infection, malignancy and normal. Results: None of the children had initial clinical suspicion of tonsil tumor. Patients’ primary complaints were as follows: 92.5% mouth breathing, 93% nocturnal snoring, 74.3% recurrent and chronic cold and infections, 56.4% sore throat, 48.2% halitosis, 26% nocturnal apnea, 22.2% dysphasia, and 18.2% anorexia. Children with tonsillar hypertrophy and obstructive symptoms (57%), and tonsillar hypertrophy and recurrent infections (42.2%) underwent tonsillectomy. In the histopathlogical examination of all patients being hyperplasia together with lymphoid hypertrophy were observed and there was no evidence of malignancy in any of the patients. Conclusion: No instance of malignancy was found in the histopathological examination of children’s tonsil-removed tissues and all of the tonsils had benign hyperplasia with lymphoid hypertrophy.