Figure 2From: 4A syndrome: ocular surface investigation in an Italian young patient Conjunctival impression cytology specimens stained with PAS-Papanicolaou stain. A. In right eye, isolated cells show condensed nuclear chromatin and mild keratinisation (arrow). B. In the left eye, isolated cells show a metaplasic appearance, pyknotic nuclei with reduced N/C and highly keratinized cytoplasm (arrow). Scale bar: 40 μm.Back to article page