Metastasis of primitive neuroectodermal tumor to the breast.
We performed mammography and sonography on a 49-year-old woman who had a mass in her left axilla that had been present for 1 month and who had undergone excision of a primitive neuroectodermal tumor (PNET) on her back 1 year before. Mammography revealed 2 adjacent, dense nodules in the left breast and enlarged lymph nodes, without a fatty hilum or internal microcalcifications, in the left axilla. Sonography showed 2 round to oval, markedly hypoechoic nodules in the left breast and enlarged, markedly hypoechoic lymph nodes, without microcalcifications, in the left axilla. We then performed sonographically guided core biopsy. Histopathologic analysis of the specimens confirmed the presence of PNET in the left breast and axillary lymph nodes. The patient was then treated with chemotherapy. To our knowledge, this report is the first to describe radiologic findings of metastasis of PNET to the breast.
Kwak
Jin-Young
JY
Department of Diagnostic Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, 134 Shinchon-Dong, Seodaemun-gu, Seoul 120-752, Korea.
Kim
Eun-Kyung
EK
You
Jai Kyung
JK
Oh
Ki Keun
KK
Hong
Soon Won
SW
Kim
Se Hoon
SH
D001706:Biopsy; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D005260:Female; D006801:Humans; D008327:Mammography; D008875:Middle Aged; D018242:Neuroectodermal Tumors, Primitive / Q000000981:diagnostic imaging / Q000556:secondary*; D016217:Ultrasonography, Mammary