前立腺肥大症と前立腺結石との併発例
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概要
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According to Young and Randall, the rate of incidence of the combination of prostatehypertrophy and prostatic calculus is 29-23%. Therefore, attention must always be paid to the combination of the prostatic calculus in any case of prostatehypertrophy. Further, in the case of such combination, the location of the calculus is extremely specific. On most of all occasions, the calculus is located in the fibrous tissue which is separating the adenomatic proliferated tumor and the compressed and atrophic original prostatic tissue, or is enbedded in the prostatic tissue outside of this layer (socalled surgical capsule) . In other words, it is always located not in the adenoma itself, but in the lumen of the gland or in the glandular tube of the prostatic tissue. However, on the case of prostatic cancer combined with prostatic calculus, is commonly located the latter in the tumor itself.<BR>The present case is 76 years old male, who visited the Hospital with the principal complaint of anuria. On various examinations, the case was diagnosed as prostatehypertrophy combined with prostatic calculus, and the glandular tumor and most of the calculi were taken out by Millin's retropubic prostatectomy. However, in this case, the presence of the calculi was recognized not only in the usual location but even in the excised glandular tumor. Consequently, the malignancy of the tumor was suspected. By the above reason, and since numerous Corpora amylacea and calculi were found in the tumor as is in the simple prostatic calculus, further pathologic histologic examinations were conducted in the hope that such examinations may make clear the mode of occurrence or the process of the genuin prostatic calculus. The tumor was demonstrated a histologic picture of the fibromyo-adenoma without any malignant changes what so ever. However, no clear and direct evidence proving the relationship between Corpora amylacea and the calculus formationn process was observed.
- 学校法人 昭和大学・昭和医学会の論文