What Causes Dark Spots on the Tongue? Angiokeratomas on the tongue Stock Image C056 4416 Science Photo Library 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? Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Dental Update Malignant oral melanoma: how to spot it and how it is managed Dental Update