Flexures Linear

Linear lesions in the flexures

The commonest linear lesions in the flexures would be stretch marks or striae distensae, the latter usually being due to overuse of strong topical steroids.The other 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 or a deodorant applied to the axillae.Warts may have a linear configuration from scratching and implanting the virus. The Unilateral laterothoracic exanthem is a rare exanthem involving one axilla found in children. It is red scaly and papular.

 

 

ILVEN

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 , Sporotrichoid spread

 

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 , Linear metastases through lymphatics

 

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, thrombophlebitis , Dermatitis artefacta

 

M-Metabolic  Papular mucinosis

 

E-Endocrine  Pregnancy pigmentary lines

 

N-Nutritional       Shiitake mushrooms flagellate

 

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

 

 

Flagellate erythema - Chemotherapy, Dermatomyositis Adult onsert Still's disease Shiitake mushroom dermatitis