Case contributed by A.Prof Frank Gaillard

Case Discussion

Final Diagnosis:

Biopsy, left retroauricular mass: Plasmacytoma.

Microscopic Description: 

The biopsy of retroauricular mass shows skeletal muscle which is heavily infiltrated by plasma cells. While many of these are almost normal appearing, there are several extremely atypical cells with enlarged nuclei, prominent nucleoli and an increased nuclear-to-cytoplasmic ratio. The biopsy is crushed and little material was left on the immunoperoxidase slides, but these appear to show that the lesion stains for IgG kappa.

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Case information

rID: 4309
Case created: 7th Aug 2008
Last edited: 8th Feb 2017
Inclusion in quiz mode: Included

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