Case Number : Case 1474 -17 February Posted By: Guest

Sebaceous nevus.

Not sure if there is any alopecia lesion ( i don't know the alopecia chapter, and i'm learning here thanks to you all )...it looks like a "bees stream" peribulbarl lymphocytic infiltrate. What about an "Alopecia areata"?

Agree with Naevus Sebaceous.
Bx is from a 'lesion' on scalp, so probably not alopecia chapter!!
There are abnormally placed sebaceous glands. Also striking is complete absence of terminal follicles (one should see terminal follicles rather than vellus follicles in a scalp bx)...all fit with naevus sebaceous.

Agree, naevus sebaceous. Nice case.

Nevus sebaceous,

because of the age of the patient the sebaceous glands are not that prominent

Yes agree with you, nevus sebaceous, the changes are a lot more subtle in prepuberal patients. Dr. McCalmont did a nice handout (even if the images seem to be missing :(  ) and remarks these particularities. http://dermatology.ucsf.edu/pdf/Adnexal%20Handout.pdf

Nevus sebaceus.