Unresectable HER2-Ultralow Breast Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A HER2-ultralow breast adenocarcinoma that is not amenable to surgical resection.

**Synonyms:** - Unresectable HER2-Ultra Low Breast Carcinoma - Unresectable HER2-Ultra-Low Breast Carcinoma - Unresectable HER2-Ultralow Breast Adenocarcinoma