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==Microscopic== | ==Microscopic== | ||
Features: | Features:<ref name=pmid25141970/> | ||
*Cords of tumour ("canals") with beading - characteristic. | *Cords of tumour ("canals") with beading - characteristic. | ||
*Cystic spaces | *Cystic spaces/tubules. | ||
*Intraluminal squamous balls - common (~60% of cases). | |||
*Intraluminal squamous balls - common. | |||
DDx: | DDx: |
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