Tricholemmoma
Ossifying fibromyxoid tumor of soft parts
*shell of bone present
*fibromyxoid matrix
Dermatofibroma
Blue nevus
Granuloma Annulare
Neurofibroma
Necrobiosis lipoidica diabeticorum (NLD)
See necrobiosis in collagen
Sarcoidosis

Scleromyxedema
Syphilis

Verruciform Xanthoma
Rosai Dorfman
Fibrotic nodules showing light and dark areas
Sheets of histiocytes (light areas) with nodules of lymphoytes (dark areas)
Emperipolesis (intact cells, especially lymphocytes and plasma cells, passing through histiocytes)
S100 positive, CD1a negative, CD68 positive
Cellular Blue Nevus
MyoFibroma
Verruciform Xanthoma