Germ Cell Tumours: Difference between revisions

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* '''<span style="color:#ff0000">Established risk factors (5):</span>'''
* '''<span style="color:#ff0000">Established risk factors (5):</span>'''
*# '''<span style="color:#ff0000">Cryptorchidism</span>'''
**'''<span style="color:#ff0000">Inherited (3):</span>'''
*#* '''Ipsilateral testis: relative risk 4-6x; relative risk decreases to 2-3x if orchidopexy is performed before puberty'''
**# '''<span style="color:#ff0000">Family history of GCT</span>'''
*#* '''Contralateral testis: slightly increased risk''' (relative risk 1.74x)
**# '''<span style="color:#ff0000">Germ Cell Neoplasia In-Situ (GCNIS)</span>'''
*# '''<span style="color:#ff0000">Family history of GCT</span>'''
**#* Previously referred to as intratubular germ cell neoplasia (ITGCN) unclassified
*# '''<span style="color:#ff0000">Personal history of GCT</span>'''
**#*'''All adult invasive GCTs arise from GCNIS, except spermatocytic seminoma.'''
*# '''<span style="color:#ff0000">Germ Cell Neoplasia In-Situ (GCNIS)</span>, previously referred to as intratubular germ cell neoplasia (ITGCN) unclassified'''
**#* Among males with GCNIS, the risk of developing invasive GCT is ≈50% at 5 years
*#* '''All adult invasive GCTs arise from GCNIS, except spermatocytic seminoma.'''
**#* '''GCNIS develops before birth from an arrested gonocyte'''
*#* Among males with GCNIS, the risk of developing invasive GCT is ≈50% at 5 years
**# '''<span style="color:#ff0000">Race</span>'''
*#* '''GCNIS develops before birth from an arrested gonocyte'''
**#* '''Caucasian risk > African-American'''
*# '''<span style="color:#ff0000">Race</span>'''
**'''<span style="color:#ff0000">Acquired (2):</span>'''
*#* '''Caucasian risk > African-American'''
**#'''<span style="color:#ff0000">Cryptorchidism</span>'''
**#* '''Ipsilateral testis: relative risk 4-6x; relative risk decreases to 2-3x if orchidopexy is performed before puberty'''
**#* '''Contralateral testis: slightly increased risk''' (relative risk 1.74x)
**#'''<span style="color:#ff0000">Personal history of GCT</span>'''


== Genetics ==
== Genetics ==