Retroperitoneal neurogenic tumors mimicking lymph node metastasis of malignant disease: A report of two cases

Shinsuke Gohara, Tomoko Kobayashi, Kyouhei Kurose, Shin Ya Uehara, Haruki Kaku, Takashi Saika, Yasutomo Nasu, Tomoyasu Tsushima, Hiromi Kumon

Research output: Contribution to journalArticle

Abstract

We experienced two cases of neurogenic tumor arising from the retroperitoneal space during the clinical course of malignant disease (Case 1: testicular cancer, Case 2: kidney cancer) These retroperitoneal tumors mimicked lymph node metastasis from each of the malignant diseases and a definitive preoperative diagnosis was not made. Tumors were removed under the diagnosis of lymph node metastasis. Postoperative histological analysis revealed neurogenic tumor (Case 1: ganglioneuroma, Case 2: paraganglioma). The postoperative clinical course was uneventful without any additional treatments. Retroperitoneal neurogenic tumor found during the clinical course of active malignant disease can not be differentiated from its metastatic lesion. Preoperative needle biopsy is still controversial. Further development of functional imaging analysis may solve this clinical problem.

Original languageEnglish
Pages (from-to)55-59
Number of pages5
JournalNishinihon Journal of Urology
Volume68
Issue number2
Publication statusPublished - Feb 2006

Keywords

  • Ganglioneuroma
  • Neurogenic tumor
  • Paraganglioma

ASJC Scopus subject areas

  • Urology

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    Gohara, S., Kobayashi, T., Kurose, K., Uehara, S. Y., Kaku, H., Saika, T., Nasu, Y., Tsushima, T., & Kumon, H. (2006). Retroperitoneal neurogenic tumors mimicking lymph node metastasis of malignant disease: A report of two cases. Nishinihon Journal of Urology, 68(2), 55-59.