Nevus trichilemmocysticus

Naevus Spinofiliformis

“…Epidermal naevi (EN) are benign congenital hamartomas that result from post-zygotic mutations and comprise organoid and non-organoid (keratinocytic) types. [ 1 ] We report an unusual organoid naevus that has so far, to our knowledge, not being recognized as a distinct entity. We propose the term ‘naevus spinofiliformis’ for this novel presentation with multiple spinous projections and filiform hyperkeratotic lesions.…”

“…However, spinous filiform projections in epidermal naevus have been described in earlier case reports as shown in Table 1 . [ 1 3 4 5 6 ]…”