ABSTRACT
The ultrastructure of S. mansoni adult worms recovered from. mice that received T. spiralis antigen prior to S. mansoni infection is described. Recorded changes in the tegument of the adult male S. mansoni: complex reticular network of surface pits, complete disruption in some parts, reduction in size of muscle blocks below the tegument, appearance of abundant electron dense lysosomes in the muscle layer. Recorded changes in the reproductive organs of the adult female S. mansoni; severe disorganization of the vitelline cells with coalescence of vitelline droplets, frequent glycogen deposition and appearance of large vacuoles, the oocytes showed an increase in electron density of the cytoplasm with peripheral cortical granules. Some oocytes exhibited degenerative features
Subject(s)
Animals, Laboratory , TrichinellaABSTRACT
Histopathological examination remains the only sure method of diagnosing prostatic lesions. The present study was conducted to evaluate accuracy of cytological diagnosis of prostatic carcinoma as compared to the routine histopathological examination. This study included 35 prostatic carcinoma and 10 benign prostatic hyperplasia. Two cytologic techniques were employed, viz. fine needle aspiration and tissue imprint of the same fresh trans-urethral resection specimens. The cytological yield of both cytological techniques was equally high. No false positive results were obtained, giving 100% specificity. The cytological accuracy of diagnosing malignancy was high, reaching 94.3% sensitivity. Cytological grading of prostatic carcinoma corresponded to the histological grading in 84.8% of cases. It may be concluded that both cytologic techniques proved to be easy and have a high degree of specificity and sensitivity