Distribution of CD163 positive cells in the porcine nasal mucosa. A Anatomy of the porcine nose: (a) ventral turbinate, (b) dorsal turbinate, (c) septum. Colors represent cartilage (white), airway (blue), mucosa (incarnadine). B Sections of porcine nasal tissues were subjected to immunofluorescent staining for CD163 (green): (I) anterior nasal septum, (II) posterior nasal septum, (III) medial side of the dorsal nasal turbinate, (IV) lateral side of the dorsal nasal turbinate, (V) medial side of the ventral nasal turbinate, (VI) lateral side of the ventral nasal turbinate, and (VII) middle nasal turbinate. Nuclei were counterstained with Hoechst (blue). White lines indicate the border between the mucosal epithelium and the lamina propria. EP: epithelium, LP: lamina propria. Scale bar: 100 µm.