Group |
Description |
Glandular |
Prominent hyperplasia of sebaceous glands
Presence of Demodex mites
Dense distribution of VIP-R-positive cells
Presence of intermediate filaments and neuroglandular antigen
|
Fibrous |
Diffuse hyperplasia of the connective tissue
Variable sebaceous gland hyperplasia
Massive deposits of actinically damaged elastotic material, vascular enlargement
Absence of pilosebaceous structures
Positive Factor XIII staining
|
Fibroangiomatous |
Nose is copper-red to dark-red, enlarged, edematous, with presence of ectatic veins
Presence of pustules
Presence of fibrosis, telangiectasias, inflammatory lesions
Less prominent sebaceous hyperplasia
|
Actinic |
Nodular masses of elastic tissue
Proliferation of sebaceous glands
Dilated ducts
Expression of inspissated sebum
Presence of gram-positive coryneform bacteria and Demodex folliculorum
Sparse distribution of yeast-like organisms
|