突出到膀胱中的种子链接接头形成了膀胱结石

Q4 Medicine IJU Case Reports Pub Date : 2024-02-09 DOI:10.1002/iju5.12704

Shuhei Aoyama, Kouji Izumi, Tomoyuki Makino, Renato Naito, Suguru Kadomoto, Hiroaki Iwamoto, Hiroshi Yaegashi, Shohei Kawaguchi, Kazuyoshi Shigehara, Takahiro Nohara, Atsushi Mizokami

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摘要

低剂量近距离放射治疗用于治疗局部前列腺癌。我们报告了首例接受低剂量近距离放射治疗的患者膀胱结石包裹种子移入膀胱的病例。2 个月后，患者出现排尿困难，超声波检查发现一根针状高强度粒子从前列腺突入膀胱。膀胱镜检查发现了一个种子链接接头。由于种子连接体有可能自然溶解，因此选择了仔细观察。然而，16 个月后，患者出现血尿，X 光检查发现膀胱结石包裹着种子。与播种后的 X 光片相比，位于右侧膀胱颈附近的种子已经脱落。经尿道膀胱碎石取石术取出了这枚种子。

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A seed link connector protruding into the bladder formed a bladder stone

Introduction

Low-dose-rate brachytherapy is performed for localized prostate cancer. We report the first case of a bladder stone encompassing the seed migrated into the bladder in a patient treated with low-dose-rate brachytherapy.

Case presentation

A man was diagnosed with prostate cancer and underwent low-dose-rate brachytherapy. After 2 months, dysuria occurred, and ultrasonography revealed a needle-shaped high-intensity protruding from the prostate into the bladder. Cystoscopy examination found a seed link connector. With the possibility of natural dissolution of the seed link, careful observation was chosen. However, 16 months later, hematuria occurred, and an X-ray revealed a bladder stone encompassing the seed. Compared with the X-ray right after seeding, the seed located near the right bladder neck had fallen. The seed was removed by transurethral bladder lithotripsy.