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**May be seen in women. | **May be seen in women. | ||
=== | ===Microscopic=== | ||
Features:<ref name=Ref_GUP549>{{Ref GUP|549}}</ref> | Features:<ref name=Ref_GUP549>{{Ref GUP|549}}</ref> | ||
#Nucleoli - '''key feature'''. | |||
#Vesicular nuclei (clear, empty appearing nuclei) - '''key feature'''. | |||
#Nuclei overlap. | |||
#[[Necrosis]] - common. | |||
* | #*Not commonly present in seminoma. | ||
#Indistinct cell borders | |||
#Mitoses - common. | |||
#Variable architecture: | |||
#*Tubulopapillary. | |||
#*Glandular. | |||
#*Solid. | |||
#*Embryoid bodies - ball of cells in surrounded by empty space on three sides. | |||
Notes: | Notes: | ||
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Images: | Images: | ||
*[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_high_mag.jpg Embryonal carcinoma - high mag. (WC)]. | *Set 1: | ||
*[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_intermed_mag.jpg Embryonal carcinoma - intermed. mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_-_very_high_mag_-_cropped.jpg Embryonal carcinoma - very high mag. - cropped (WC)]. | ||
*[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_low_mag.jpg Embryonal carcinoma - low mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_-_high_mag.jpg Embryonal carcinoma - high mag. (WC)]. | ||
*Set 2: | |||
**[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_high_mag.jpg Embryonal carcinoma - high mag. (WC)]. | |||
**[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_intermed_mag.jpg Embryonal carcinoma - intermed. mag. (WC)]. | |||
**[http://commons.wikimedia.org/wiki/File:Embryonal_carcinoma_low_mag.jpg Embryonal carcinoma - low mag. (WC)]. | |||
===DDx=== | ===DDx=== |
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