Paratesticular Low-Grade Fibromyxoid Sarcoma : A Case Report

A 36-year-old man presented with painless swelling in the right side scrotum. Ultrasonography showed a hypoechoic tumor with mosaic pattern. Plain computed tomograghy (CT) revealed a 67 mm scrotal cystic lesion with low density area. We suspected an intrascrotal tumor and performed right side radica...

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Veröffentlicht in:Hinyokika kiyo. Acta urologica Japonica. - 1962. - 68(2022), 8 vom: 21. Aug., Seite 277-280
1. Verfasser: Sugino, Fumiya (VerfasserIn)
Weitere Verfasser: Ishida, Takashi, Tamaki, Masayoshi, Komeda, Hisao, Watanabe, Naoki, Tanaka, Takuji
Format: Online-Aufsatz
Sprache:Japanese
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Hinyokika kiyo. Acta urologica Japonica
Schlagworte:Case Reports Journal Article
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520 |a A 36-year-old man presented with painless swelling in the right side scrotum. Ultrasonography showed a hypoechoic tumor with mosaic pattern. Plain computed tomograghy (CT) revealed a 67 mm scrotal cystic lesion with low density area. We suspected an intrascrotal tumor and performed right side radical orchiectomy. The removed sample was yellow clear and elastic hard. A 7 cm multilocular cystic tumor was present on the head side of the normal testis. The cut-surface and the contents of the mass revealed a jelly-like viscous liquid. On the microscopic examination, the tumor was composed of mucinous stroma and spindle-shaped atypical cells with hyperchromatic oval nuclei and eosinophilic cytoplasm. There was a characteristic network of blood vessesls with hyperhyalinization in the myxoid zones. Immunohistochemically, CDK4, MDM2, AE1/AE3, S-100, Alpha-SMA and desmin were negative, but MUC4 showed focal cytoplasmic positivity in the neoplastic cells. In the reverse transcription polymerase chain reaction assay, no FUS-CREB3L2/FUS-CREB3L1 fusion transcripts were identified although the detectable messages of the housekeeping genes were noted. The tumour was finally diagnosed as a paratesticular low-grade fibromyxoid sarcoma. Postoperative course was uneventful and no recurrence or metastasis was seen four months after the operation 
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700 1 |a Tamaki, Masayoshi  |e verfasserin  |4 aut 
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700 1 |a Watanabe, Naoki  |e verfasserin  |4 aut 
700 1 |a Tanaka, Takuji  |e verfasserin  |4 aut 
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