Giant Naevoid Syringocystadenoma Papilliferum

A red nodule of the scalp

“…A possible derivation from eccrine or undifferentiated pluripotential cells has also been reported [ 1 – 4 ]. SCAP affects males and females equally [ 2 ], developing at birth (50% of cases) or in childhood/adolescence [ 3 , 5 ]. At puberty a dimensional growth may be displayed [ 2 , 3 ].…”

Giant linear syringocystadenoma papilliferum on scalp

“…In about half of those affected, it is present at birth, and in a further 15%-30%, the tumor develops before puberty. [2,4] The lesions of SCAP measure between 1 and 3 cm in diameter [3] and all published cases of nodular SCAP have to date measured <4 cm in diameter. [2,3] In addition to the head and neck, the involvement of other anatomic locations are well documented but uncommon.…”

“…[2] SCAP has a varied clinical appearance, usually presents as a hairless, single nodule on the scalp, but a small papular form is also known. [4] A vast majority of SCAPs are solitary lesions, and linear arrangement of these lesions is particularly rare. [2,4] The lesions of SCAP measure between 1 and 3 cm in diameter [3] and all published cases of nodular SCAP have to date measured <4 cm in diameter.…”