Metastasis to the sublingual gland of metaplastic breast carcinoma – a case report
Metastatic spread to the salivary glands is rare, occurring primarily from head and neck tumors to the parotid gland. So far, only one sublingual gland metastasis has been reported in the literature. We herein report the second case of metastasis to this gland occurring in a woman in her 50s, prev...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Portuguesa de Estomatologia e Medicina Dentária
2023-03-01
|
| Series: | Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial |
| Subjects: | |
| Online Access: | http://administracao.spemd.pt/app/assets/imagens/files_img/1_19_642abbc38eb0f.pdf |
| Summary: | Metastatic spread to the salivary glands is rare, occurring primarily from head and neck
tumors to the parotid gland. So far, only one sublingual gland metastasis has been reported in the literature. We herein report the second case of metastasis to this gland
occurring in a woman in her 50s, previously diagnosed with HER2-positive metaplastic
breast carcinoma (MpBC) with chondroid differentiation, with lymph node and diffuse
organ metastases. The sublingual lesion presented as a tumefaction on the floor of the
mouth, causing masticatory discomfort. Histologically it was formed by epithelial cells
with high-grade cytomorphological features with a large central area of chondroid differentiation. The case was clinically and pathologically challenging, given the rarity of
the primary MpBC and the improbable secondary location. Alternative primary salivary
gland tumors with chondroid differentiation were considered, but ultimately the clinical
integration was crucial in establishing the diagnosis of MpBC metastasis to the sublingual gland. |
|---|---|
| ISSN: | 1646-2890 1647-6700 |