RT Journal Article
SR Electronic
T1 Osteosarcomatous differentiation in lung metastases from a malignant phyllodes tumour of the breast
JF Journal of Clinical Pathology
JO J Clin Pathol
FD BMJ Publishing Group Ltd and Association of Clinical Pathologists
SP 432
OP 434
DO 10.1136/jcp.2003.012336
VO 57
IS 4
A1 H Tsubochi
A1 N Sato
A1 M Kaimori
A1 T Imai
YR 2004
UL http://jcp.bmj.com/content/57/4/432.abstract
AB Osteosarcomatous differentiation of a phyllodes tumour in the breast is extremely rare. A 54 year old woman presented with a painless lump in her left breast and a mastectomy was performed. Microscopically, the tumour was diagnosed as a malignant phyllodes tumour, where no osteosarcomatous component was found. One year later, two lung tumours were revealed upon chest x ray and were surgically treated. The tumours revealed osteosarcomatous features, and were thought to be metastases from the phyllodes tumour. The present case is very unusual in that osteosarcomatous features are present only in the metastatic lesion of the phyllodes tumour.