| Lichen amyloidosis | Chronic pruritic eruption of multiple discrete, hyperkeratotic papules located predominantly on the shins in a symmetrical distribution |
| Lichen planus hypertrophicus | Extremely pruritic, hyperkeratotic, and violaceous plaques and nodules on the shins, ankles, and dorsum of the feet |
| Lichen simplex chronicus | Pruritic, dry, scaling, hyperpigmented, and thickening plaques and papules that are skin-colored or erythematous; located on the legs, arms, neck, and upper trunk |
| Pretibial myxedema | Asymptomatic bilateral, firm, nonpitting, asymmetrical, erythematous plaques or nodules on pretibial areas and the dorsum of the feet; associated with hyperthyroidism |
| Prurigo nodularis | Multiple intensely pruritic, excoriated nodules and papules on the limbs and trunk |
