Breast Cancer Metastasis to the Stomach That Was Diagnosed after Endoscopic Submucosal Dissection.
Masahide KitaMasashi FurukawaIwamuro MasayaKeisuke HoriYoshiro KawaharaNaruto TairaTomohiro NogamiTadahiko ShienTakehiro TanakaHiroyoshi DoiharaHiroyuki OkadaPublished in: Case reports in gastrointestinal medicine (2016)
A 52-year-old woman presented with stage IIB primary breast cancer (cT2N1M0), which was treated using neoadjuvant chemotherapy (epirubicin, cyclophosphamide, and paclitaxel). However, the tumor persisted in patchy areas; therefore, we performed modified radical mastectomy and axillary lymph node dissection. Routine endoscopy at 8 months revealed a depressed lesion on the gastric angle's greater curvature, and histology revealed signet ring cell proliferation. We performed endoscopic submucosal dissection for gastric cancer, although immunohistochemistry revealed that the tumor was positive for estrogen receptor, mammaglobin, and gross cystic disease fluid protein-15 (E-cadherin-negative). Therefore, we revised the diagnosis to gastric metastasis from the breast cancer.
Keyphrases
- endoscopic submucosal dissection
- neoadjuvant chemotherapy
- lymph node
- sentinel lymph node
- estrogen receptor
- cell proliferation
- single cell
- locally advanced
- computed tomography
- high resolution
- rectal cancer
- low dose
- high dose
- clinical practice
- prostate cancer
- radiation therapy
- squamous cell carcinoma
- magnetic resonance imaging
- magnetic resonance
- young adults
- ultrasound guided
- newly diagnosed
- mass spectrometry
- breast cancer risk
- small molecule
- childhood cancer