Arms and Legs Linear

Linear lesions on the arms and legs

The commonest linear lesions on these areas would be epidermal nevi particularly ILVEN and also lichen striatus.Inflammatory linear with blisters would suggest herpes zoster, followed by a plant contact dermatitis or a phytophotodermatitis from a photosensitising sap or juice eg limes.A tender thrombosed superficial vein may give a linear lesion.Warts may have a linear configuration from scratching and implanting the virus.

SIGN DIP MEN     Overview of Linear lesions

 

S-Squamous   Lichen striatus,ILVEN(inflammatory linear verrucous epidermal nevus),Psoriasis,Lichen simplex,,Lichen planus,Darier’s disease,Lichen nitidus,

 

I-Infective    Herpes zoster,Cutaneous larva migrans,Warts including molluscum

 

G-Granulomatous

 

N-Neoplastic    Porokeratoses,Sebaceous nevus,Epidermal nevi,Linear benign tumours Syringomas,Trichoepitheliomas,and Eccrine spiradenomas,Linear porokeratoses,,Leiomyomas,Segmental neurofibromatosis,Linear Basal cell nevus syndrome

 

D-Drugs

 

I-Immunological   Vitiligo,Linear Morphea,Graft versus host disease,

 

P-Physical     Scratching,Dermatographism,Plant contact dermatitis,Pigmented purpuric dermatosis,Mondor’s disease,Linear fibromatosis,Linear common diseases because of the Koebner effect

 

M-Metabolic  Papular mucinosis

 

E-Endocrine  Pregnancy pigmentary lines

 

N-Nutritional

 

Others-  Linear lesions following Blaschko’s lines, Linear disease variants due to Mosaicism, Incontinentia pigmenti, Hypomelanosis of Ito, Goltz syndrome, Conradi syndrome,