Low Grade Papillary Schneiderian Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A rare sinonasal carcinoma characterized by the presence of a papillary architecture and bland morphological features similar to the Schneiderian papilloma, a pushing pattern of stromal invasion, and an increased risk of local recurrence.

**Synonyms:** - LGPSC - Low Grade Papillary Sinonasal Carcinoma - Low-Grade Papillary Schneiderian Carcinoma - Low-Grade Papillary Sinonasal Carcinoma