Eosinophil infiltration in posttransurethral resection prostatitis and cystitis with special reference to sequential changes of eosinophilia |
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Authors: | Yuji Ohtsuki Naotami Terao Morimasa Kuwahara Kenji Ochi Mitsuko Iguchi Atsushi Kurabayashi Manabu Matsumoto Tamotsu Takeuchi Mutsuo Furihata |
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Institution: | (1) Divisions of Pathology and Urology, Matsuyama-shimin Hospital, Matsuyama Ehime, 790-0067, Japan;(2) Department of Urology, Kochi-Takasu Hospital, Kochi, Japan;(3) Department of Urology, Fujisaki Hospital, Saga, Japan;(4) Department of Pathology, Kochi Medical School, Kochi University, Kochi, Japan |
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Abstract: | Posttransurethral resection (TUR) status in the prostate and urinary bladder has been infrequently documented. Furthermore,
sequential changes in eosinophil count in peripheral blood (PB) after TUR have not been investigated in detail. In the present
study, eosinophil counts and changes in eosinophils in PB were examined before to after TUR of the prostate (P) in 20 patients
with benign prostatic hyperplasia. Among them, 14 patients exhibited increased numbers of eosinophils, the greatest increase
being 17%. After TUR to treat bladder tumor (BT), massive infiltration of eosinophils into the resected areas, peaking 1 month
later, was also detected in 8 of 15 cases of post-TUR cystitis. The PB eosinophil counts increased by more than 5% in two
of five cases of post-TUR cystitis in which eosinophil counts were obtained before and after surgery. Most infiltrating eosinophils
reacted positively to antibodies to eosinophil cationic proteins. These results indicated that, in patients with post-TUR
prostatitis, the number of eosinophils in PB increased, and peaked 1 month later, with infiltration by eosinophils observed.
Pathologists and urologists should be aware of the potential for increase in eosinophils not only in regions of TUR but also
in PB. |
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Keywords: | Transurethral resection Eosinophil Cystitis Prostatitis |
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