Publication: Metaplastic carcinoma of the breast with transformation from adenosquamous carcinoma to osteosarcomatoid and spindle cell morphology
Issued Date
2013-09-01
Resource Type
ISSN
17921082
17921074
17921074
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2-s2.0-84880530784
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Mahidol University
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SCOPUS
Bibliographic Citation
Oncology Letters. Vol.6, No.3 (2013), 728-732
Suggested Citation
Suebwong Chuthapisith, Malee Warnnissorn, Nattawut Amornpinyokiat, Kanapon Pradniwat, Tamnit Angsusinha Metaplastic carcinoma of the breast with transformation from adenosquamous carcinoma to osteosarcomatoid and spindle cell morphology. Oncology Letters. Vol.6, No.3 (2013), 728-732. doi:10.3892/ol.2013.1464 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31225
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Title
Metaplastic carcinoma of the breast with transformation from adenosquamous carcinoma to osteosarcomatoid and spindle cell morphology
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Abstract
Metaplastic carcinoma of the breast refers to a heterogenous group of mammary carcinomas that contain a mixture of various cell types, including squamous cells, spindle cells and/or a mesenchymal component, such as bone or cartilage. To the best of our knowledge, the clinical course of a tumour that has undergone a transformation from one type of metaplastic carcinoma to another subtype has not previously been reported. The present study reports the five-year clinical and pathological course of a metaplastic breast carcinoma in a 55-year-old female, who was diagnosed with a sclerosing fibroadenomatous nodule with osseous metaplasia and focal atypia. A recurrent tumour was documented four years later, showing a predominant component of osteosarcoma with adenosquamous carcinoma. Upon pathological review of the initial mass, the diagnosis was changed to low-grade adenosquamous carcinoma. The patient was treated with breast conserving therapy. However, one year later, a recurrent metaplastic carcinoma with spindle cell morphology was documented and surgically removed by mastectomy. Subsequently, pulmonary invasion of the chest wall occurred and the patient eventually succumbed due to the invasive nature of the disease.