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2026, Number 3

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Acta Med 2026; 24 (3)

Primitive neuroectodermal tumor of the retroperitoneum

Torres AME, Rivera RA, Carrera ÁMA, Vega EJJ
Full text How to cite this article 10.35366/123157

DOI

DOI: 10.35366/123157
URL: https://dx.doi.org/10.35366/123157

Language: Spanish
References: 5
Page: 296-297
PDF size: 1653.04 Kb.


Key words:

primitive neuroectodermal tumor, retroperitoneum, CD99, TFE3, NSE.

ABSTRACT

Primitive neuroectodermal tumor (PNET) is a highly aggressive malignant neoplasm derived from primitive neuroectodermal cells. We report the case of a 67-year-old male with right lumbar pain; imaging suggested renal involvement, but postoperative histopathology confirmed a retroperitoneal PNET. Due to its aggressive nature, a comprehensive therapeutic approach is essential. The publication of similar cases may support the development of case series that enhance diagnostic accuracy and multidisciplinary management strategies for this increasingly recognized rare entity.


REFERENCES

  1. Nabors LB, Ammirati M, Bierman PJ et al. Central nervous systemcancers. J Natl Compr Canc Netw. 2013; 11 (9): 1114-1151. doi:10.6004/jnccn.2013.0132.

  2. Chiang S, Snuderl M, Kojiro-Sanada S et al. Primitive neuroectodermaltumors of the female genital tract: a morphologic, immunohistochemical,and molecular study of 19 cases. Am J Surg Pathol. 2017; 41 (6): 761-772. doi: 10.1097/PAS.0000000000000831.

  3. Ellinger J, Bastian PJ, Hauser S et al. Primitive neuroectodermal tumor:rare, highly aggressive differential diagnosis in urologic malignancies.Urology. 2006; 68 (2): 257-262. doi: 10.1016/j.urology.2006.02.037.

  4. Gao L, Zhu Y, Shi X, Gao Z, Chen X. Peripheral primitive neuroectodermaltumors: A retrospective analysis of 89 cases and literature review. OncolLett. 2019; 18 (6): 6885-6890. doi: 10.3892/ol.2019.11011.

  5. Patnaik N, Mishra K, Saini P, Agarwal N. Primitive neuroectodermaltumor of the kidney in a young male: case report and review ofliterature. Urol Ann. 2015; 7 (2): 236-239. doi: 10.4103/0974-7796.150537.




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Acta Med. 2026;24