Specific conditions involving the lips.
Cheilitis Allergic contact dermatitis,Herpetic gingivostomatitis,Herpes labialis,Isotretinoin cheilitis,Toxic epidermal necrolysis
Cleft Cleft lip
Cyst Mucocele
Dermatitis Lip licking (perioral involvement)
Enlargement Angioedema,Ascher's syndrome,Cheilitis glandularis,Cheilitis Granulomatosis,Melkersson-Rosenthal syndrome
Hyperkeratotic papule Actinic cheilitis,Leukoplakia,Squamous cell carcinoma,
Mutilated Cancrum Oris,Lesch-Nyan syndrome
Perleche Angular cheilitis,Riboflavin deficiency
Pigmented Labial melanotic macule,Laugier-Hunziker syndrome,Peutz-Jeghers syndrome,
Pits Lip pits
Vascular Venous lake,Pyogenic granuloma
Yellow Fordyce spots
Upper lip Hypertrichosis,Melasma,Herpes simplex
White Leukoplakia,Lichen planus (lacey pattern),Vitiligo
Modified from Regional Dermatology Gary M White