The World Health Organization 2016 classification of testicular germ cell tumours

a review and update from the International Society of Urological Pathology Testis Consultation Panel

the Members of the ISUP Testicular Tumour Panel

Research output: Contribution to journalReview article

28 Citations (Scopus)

Abstract

Since the last World Health Organization (WHO) classification scheme for tumours of the urinary tract and male genital organs, there have been a number of advances in the understanding, classification, immunohistochemistry and genetics of testicular germ cell tumours. The updated 2016 draft classification was discussed at an International Society of Urological Pathology Consultation on Testicular and Penile Cancer. This review addresses the main updates to germ cell tumour classification. Major changes include a pathogenetically derived classification using germ cell neoplasia in situ (GCNIS) as a new name for the precursor lesion, and the distinction of prepubertal tumours (non-GCNIS-derived) from postpubertal-type tumours (GCNIS-derived), acknowledging the existence of rare benign prepubertal-type teratomas in the postpubertal testis. Spermatocytic tumour is adopted as a replacement for spermatocytic seminoma, to avoid potential confusion with the unrelated usual seminoma. The spectrum of trophoblastic tumours arising in the setting of testicular germ cell tumour continues to expand, to include epithelioid and placental site trophoblastic tumours analogous to those of the gynaecological tract. Currently, reporting of anaplasia (seminoma or spermatocytic tumour) or immaturity (teratoma) is not required, as these do not have demonstrable prognostic importance. In contrast, overgrowth of a teratomatous component (somatic-type malignancy) and sarcomatous change in spermatocytic tumour indicate more aggressive behaviour, and should be reported.

Original languageEnglish (US)
Pages (from-to)335-346
Number of pages12
JournalHistopathology
Volume70
Issue number3
DOIs
StatePublished - Feb 1 2017

Fingerprint

Testis
Referral and Consultation
Pathology
Seminoma
Germ Cell and Embryonal Neoplasms
Neoplasms
Teratoma
Placental Site Trophoblastic Tumor
Anaplasia
Trophoblastic Neoplasms
Penile Neoplasms
Male Genitalia
Testicular Germ Cell Tumor
Testicular Neoplasms
Urinary Tract
Germ Cells
Names
Immunohistochemistry

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Histology

Cite this

The World Health Organization 2016 classification of testicular germ cell tumours : a review and update from the International Society of Urological Pathology Testis Consultation Panel. / the Members of the ISUP Testicular Tumour Panel.

In: Histopathology, Vol. 70, No. 3, 01.02.2017, p. 335-346.

Research output: Contribution to journalReview article

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abstract = "Since the last World Health Organization (WHO) classification scheme for tumours of the urinary tract and male genital organs, there have been a number of advances in the understanding, classification, immunohistochemistry and genetics of testicular germ cell tumours. The updated 2016 draft classification was discussed at an International Society of Urological Pathology Consultation on Testicular and Penile Cancer. This review addresses the main updates to germ cell tumour classification. Major changes include a pathogenetically derived classification using germ cell neoplasia in situ (GCNIS) as a new name for the precursor lesion, and the distinction of prepubertal tumours (non-GCNIS-derived) from postpubertal-type tumours (GCNIS-derived), acknowledging the existence of rare benign prepubertal-type teratomas in the postpubertal testis. Spermatocytic tumour is adopted as a replacement for spermatocytic seminoma, to avoid potential confusion with the unrelated usual seminoma. The spectrum of trophoblastic tumours arising in the setting of testicular germ cell tumour continues to expand, to include epithelioid and placental site trophoblastic tumours analogous to those of the gynaecological tract. Currently, reporting of anaplasia (seminoma or spermatocytic tumour) or immaturity (teratoma) is not required, as these do not have demonstrable prognostic importance. In contrast, overgrowth of a teratomatous component (somatic-type malignancy) and sarcomatous change in spermatocytic tumour indicate more aggressive behaviour, and should be reported.",
author = "{the Members of the ISUP Testicular Tumour Panel} and Williamson, {Sean R.} and Brett Delahunt and Cristina Magi-Galluzzi and Ferran Algaba and Lars Egevad and Ulbright, {Thomas M.} and Tickoo, {Satish K.} and Srigley, {John R.} and Epstein, {Jonathan I.} and Berney, {Daniel M.} and Amin, {Mahul B.} and Mahul Amin and Humphrey, {Peter A.} and Idrees, {Muhammad T.} and Antonio Lopez-Beltran and Rodolfo Montironi and Esther Oliva and Joanna Perry-Keene and Clare Verrill and Asli Yilmaz and Young, {Robert H.} and Ming Zhou",
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