Small round cell tumours

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Small round cell tumours (SRCT), also small round blue cell tumours (SRBCT), are a group of tumours that have a similar histologic appearance.

It is a group of tumours that is seen more often in childhood than adulthood.

DDx:[1]

Memory device: 4 -blastoma (hepato-, neuro-, nephro-, retino-), PNET/Ewing sarcoma (medulloblastoma), DSRCT, lymphoma, alveolar rhabdomyosarcoma.

Microscopic

Features:

  • Sheets of cells, very cellular.
  • Small cells ~ 2X RBC diameter.
  • Scant cytoplasm.
  • Coarse chromatin.
  • +/-Nucleolus. (???)
  • +/-Vascular.

See also

References