Intermediate Atypical Prostate Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** An aggressive, castration-resistant, histologically distinct, metastatic carcinoma arising from the prostate gland. It is characterized by the presence of a pure population of cytologically bland malignant epithelial cells with moderate to abundant cytoplasm and rare mitotic figures. The prognosis is poor.

**Synonyms:** - IAC - Intermediate Atypical Carcinoma - Intermediate Atypical Metastatic Castration-Resistant Prostate Cancer - Intermediate Atypical Metastatic Castration-Resistant Prostate Carcinoma - Intermediate Atypical mCRPC