case_images: PMC3541771_01
case_images: Intraoral photo of the granular cell tumour affecting the dorsum of the tongue.
case_images: CRIM2012-159803.001.jpg
case_images: PMC3541771_01_CRIM2012-159803.001.jpg
case_images: fig1
case_images: The lump was tender to palpation and had an unusual hyperkeratotic surface (Figure 1).
case_images: Low power view of oral granular cell tumour stained with hematoxylin and eosin.
case_images: CRIM2012-159803.002.jpg
case_images: PMC3541771_01_CRIM2012-159803.002.jpg
case_images: fig2
case_images: An excisional biopsy was performed under local anaesthesia and the specimen submitted for histological analysis (Figures 2 and 3).
case_images: High power view of oral granular cell tumour stained with hematoxylin and eosin.
case_images: CRIM2012-159803.003.jpg
case_images: PMC3541771_01_CRIM2012-159803.003.jpg
case_images: fig3
case_images: An excisional biopsy was performed under local anaesthesia and the specimen submitted for histological analysis (Figures 2 and 3).
case_images: PMC3541771_02
case_images: Intraoral photo of the granular cell tumour affecting the buccal mucosa.
case_images: CRIM2012-159803.004.jpg
case_images: PMC3541771_02_CRIM2012-159803.004.jpg
case_images: fig4
case_images: Extraorally no pathology was detected intraorally the lesion presented as a thick, raised, white plaque, fixed to underlying tissues and measuring 6 mm in diameter (Figure 4). 
case_images: Immunoreactivity of the lesion for S-100 protein.
case_images: CRIM2012-159803.005.jpg
case_images: PMC3541771_02_CRIM2012-159803.005.jpg
case_images: fig5
case_images: The results of this confirmed the diagnosis of a granular cell tumour; the immunohistochemistry showed that the cells were positive for S-100, but negative for Melan A, MNF-116, and CD68, consistent with a granular cell tumour (Figure 5).