👉 Pterylography is a medical condition that refers to the formation of crystals in the skull or jaw. These crystals are often associated with certain diseases, such as meningitis or brain tumors. Pterylography can be caused by various factors, including infections, trauma, and genetic disorders. The exact cause of pterylography cannot be fully determined, but it is believed to be a result of the body's response to an infection. If you or someone else has symptoms related
