Ectopic neuroglial tissue is a rare condition where benign brain-like cells are found outside the central nervous system, making it difficult to diagnose without specialized tests.
Diagnosing it relies heavily on histopathology since it can resemble other issues like dermoid or pilar cysts.
A case study of a 19-month-old boy showed a lesion on his nose, initially thought to be a dermoid cyst, but turned out to be neuroglial heterotopia after surgical examination.