A papillary tumor formed of fronds covered by non-keratinized stratified squamous epithelium. Core is fibrotic and vascular. No evidence of atypia or malignancy.
One referred paraffin block for PDL-1 of tongue lesion diagnosed as invasive squamous cell carcinoma, well differentiated (previous pathology number 25-N2549).
One referred paraffin block.
Tongue lesion, excision, immunostaining: