Case Number : Case 2002 - 07 Feb 2018 Posted By: Uma Sundram

syringocystadenoma papilliferum arising in a sebaceous nevus

Fronds with papillation

Secretion with decapitation

Plasma cells in the corium

Syringocystadenoma papilliferum !

SCP

I love this tumor :-)

Totally agree with Colleagues! :-)

You bet! syringocystadenoma papilliferum in a nevus sebaceus.

Some take home points about this particular case: 1) this can be diagnosed at ANY age (i.e., the nevus sebaceus part). Just watch out for it and insist on seeing those endophytic fronds with plasma cells. We had to do a deeper biopsy to really nail the diagnosis although we suspected it on the initial biopsy. 2) The top of a long standing lesion can have acanthosis and hyperkeratosis, and mimic epithelial tumors. Insist on a deeper biopsy if you cannot make a definitive diagnosis on the first try.