23 November 2021>: Articles
Breast Cancer Metastasis to the Parotid: A Case Report with Imaging Findings
Challenging differential diagnosis, Rare disease
Hyun Kyung Jung A , Yun-Jung Lim A* , Woogyeong Kim DDOI: 10.12659/AJCR.934311
Am J Case Rep 2021; 22:e934311
Figure 3. (A) The biopsy specimen of the left parotid gland is composed of only tumor component without any salivary gland tissue (Hematoxylin & Eosin, ×12.5). (B) The needle biopsy of the left parotid gland shows proliferation of atypical medium-sized cells with abundant cytoplasm and hyperchromatic nuclei with prominent nucleoli (Hematoxylin &Eosin, ×200). (C) All tumor cells show diffuse strong membranous expression of Her-2, confirming a morphology similar to the primary breast tumor (Her-2 immunohistochemistry, ×200).