Solitary myeloma (plasmacytoma) lateral tibial plateau

Case contributed by Dr Chris O'Donnell

Presentation

Known paraproteinuria. 6 weeks of pain and swelling in the lateral knee. No history of trauma

Patient Data

Age: 60
Gender: Female

Well-defined mass with slightly lobulated margins in the lateral tibial plateau with surrounding soft tissue oedema.  No expansion of bone nor cortical destruction.  Only minor adjacent bone marrow oedema laterally.

Subtle lytic lesion in the lateral tibial plateau without cortical breach or bone expansion.

Case Discussion

This is an unusual location for a solitary deposit of myeloma.  The lack of bone expansion is also unusual.  Differential diagnosis would include giant cell tumour and metastasis.

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Case information

rID: 45778
Case created: 7th Jun 2016
Last edited: 7th Jun 2016
Inclusion in quiz mode: Included

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