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Related Concept Videos

Spermatogenesis01:41

Spermatogenesis

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Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Spermatocytic Tumor: A Review.

Simona Secondino1, Alessandra Viglio2, Giuseppe Neri2,3

  • 1Oncology Department, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy.

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|June 10, 2023
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Summary

Spermatocytic tumors (STs) are rare testicular cancers with a good prognosis when diagnosed early. Aggressive variants exist, highlighting the need for further research and an international registry to improve understanding of this distinct entity.

Keywords:
germ cell tumorsrare tumorsspermatocytic tumor

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Area of Science:

  • Oncology
  • Pathology

Background:

  • Spermatocytic tumor (ST) is a rare testicular cancer, comprising ~1% of cases.
  • Distinct from other germ cell tumors (GCTs), STs are now classified under non-germ in-situ-derived tumors.
  • STs exhibit unique clinical-pathologic features compared to traditional GCTs.

Purpose of the Study:

  • To consolidate and present the current knowledge on spermatocytic tumors.
  • To emphasize STs as a distinct entity within testicular neoplasms.
  • To advocate for an international registry to enhance understanding of this rare disease.

Main Methods:

  • A comprehensive web-based literature search of MEDLINE/PubMed was conducted.
  • Pertinent articles on spermatocytic tumors were identified and reviewed.
  • Epidemiological, pathological, and clinical data were systematically summarized.

Main Results:

  • The majority of STs are diagnosed at Stage I with an excellent prognosis.
  • Orchiectomy alone is the primary treatment for most ST cases.
  • Rare aggressive variants (anaplastic ST, ST with sarcomatous transformation) show poor prognosis and treatment resistance.

Conclusions:

  • Spermatocytic tumors represent a unique group of testicular neoplasms requiring specific consideration.
  • Early-stage STs generally have a favorable outcome with orchiectomy.
  • Further research and international collaboration through a registry are crucial for rare, aggressive ST variants.