Black hairy tongue in an infant CMAJ Black hairy tongue Wikipedia Pigmented fungiform papillae of the tongue Cosmoderma A 9 year old boy presented for evaluation of dark spots on the tongue. The family first noted these spots 5 months prior and reported that they remained stable. Can you make a diagnosis? A Focal Intrinsic Physiologic Pigmentation of : Journal of Pharmacy and Bioallied Sciences Causes And Treatment For Black Spots On My Tongue NatruSmile