Sex/Age

Diagnosis

Hx of computer use

Lesion Morphology

Lesion Location

Clinical Course

Reference

Contact Dermatitis

Exposure to computer mouse

22/F

Allergic contact dermatitis from computer mouse (diethyl phthalate)

Not described

Macular, erythematous,vesicular

Right palm

Symptoms improved by avoidance of direct contact

Capon et al. (1996)

34/F

Allergic contact dermatitis from computer mouse (dimethyl phthalate)

Not described

Scarly, erythematous

Right palm

Symptoms improved by avoidance of direct contact

39/F

Allergic contact dermatitis from computer mouse (resorcinol monobenzoate)

Office secretary

Scaly, hyperkeratotic, fissured

Right palm

Improvement with avoidance of mouse

Goossens, Blondeel, Zimerson (2002)

Exposure to mouse pad

57/M

Allergic contact dermatitis from mouse mat (diphenyl thiourea)

Office worker; 6 hours per day

Sharply demarcated eruption characterized by erythema, scaling, and vesiculation

Palmar aspect of right thumb

Symptoms improved with avoidance of mouse mat

Garcia-Morales, Garcia-Bravo, Camacho-Martinez (2003)

Exposure to wrist rest pad

43/F

Allergic contact dermatitis from keyboard wrist rest pad (neopre

Not described

Vesicles and hemorrhagic bullae

Palmar aspect of left wrist

Cleared with prednisone taper

Johnson & Elston (1997)

25/F

Allergic contact dermatitis from keyboard wrist rest pad (dialkyl thiourea)

Not described

Symmetrical erythematous hyperkeratotic plaques with vesicles

Palms bilaterally

Improvement with betamethasone dipropionate

Bassiri & Cohen (2002)

29/F

Allergic contact dermatitis from keyboard wrist rest pad (dialkyl thiourea)

Not described

Hyperkeratotic and erythematous lesions

Palms bilaterally

Improvement with fluocinonide occlusion therapy

Yokota, Fox, Maibach (2007)

Friction-Induced Dermatoses

47/M

"Computer palms"--Stage I pressure ulcer from ischemia

Computer programmer; 12-15 hours per day for 22 years

Well-demarcated erythematous, blanchable patches with telangiectasias

Bilateral palms

Not described

Lewis, Hsu, Phillips (2000)

42/F

"Computer palms"--Stage I pressure ulcer from ischemia

Computer programmer; 10-18 hours per day for 20 years

Well-demarcated erythematous, blanchable patches with telangiectasias

Bilateral palms

Not described

34/F

"Keyboard wrist pad" (frictional dermatosis)

Office worker; 6 hours per day for 10 years

well-demarcated, slightly elevated, whitish patch

Ulnar side of wrist

Symptoms improved with soft material cushion under wrists

Tanaka et al (2001)

40/M

"Keyboard wrist pad" (frictional dermatosis)

6 hours per day for 20 years

Well-circumscribed keratoderma

Ulnar side of wrist

No change in symptoms with soft material cushion

35/M

"Mousing callus"

Academician; 10 hours per day for 3 years

Yellowish, painless hyperkeratosis

Palmar side of wrist

Not described

Goksugur & Cakici (2006)

N/A

Mouse-related edematous lesion

Dermatology PhD's; 4 hours per day for 2 years

Well-demarcated, red-yellow edematous hyperplastic lesion

Ulnar side of wrist

Not described

Li et al. (2004)

49/F

Irritant contact dermatitis from computer mouse

6 hours per day

Erythematous, patchy, vesicular lesions

Right palm

Symptoms improved with avoidance of mouse

Kanerva, Estlander, Jolanki (2000)

32/M

"Mouse fingers" (irritant contact dermatitis)

Computer programmer; 4 hours per day for  5 years

Sharply demarcated eruption characterized by erythema, rhagades, and scaling

Palmar side of first and fifth fingertips of right hand

Not described

Vermeer & Bruynzeel (2001)

24/F

Frictional lichenified dermatosis

12 hours per day for 4 months; 3-4 hours per day for 10 years

Dark, painless hyperkeratotic thickening

Ulnar side of wrist

Improvement with rest and reassurance

Current report

Erythema Ab Igne

26/M

Erythema Ab Igne

Several hours per day

Reticular and macular brown non-blanching pigmentation

Anterior aspect of bilateral thighs

Clearance of lesions 3 months after cessation of laptop use on lap

Bachmeyer, Bensaid, Begon (2009)

48/F

Erythema Ab Igne

Not described

Patchy reticular pigmentation

Anterior aspect of bilateral thighs

Not described

Jagtman (2004)

40/F

Erythema Ab Igne

Several hours per day

Reddish brown, reticulated eruption

Anterior aspect of bilateral thighs

Clearance of lesions over several months after cessation of laptop use

Levinbook (2007)

17/F

Erythema Ab Igne

Student; 6-8 hours per day for 2 years

Patchy, reticulated, non-blanchable,erythematous to brownish lesions

Anterior aspect of bilateral thighs

Clearance of lesions 2 months after cessation of laptop use on lap

Maalouf et al. (2006)

26/F

Erythema Ab Igne

6 hours per day

Large patch of reticulated hyperpigmentation

Anterior aspect of right thigh

Not described

Mohr et al.(2007)

50/M

Erythema Ab Igne

Systems analyst; frequent use of laptop for 2 weeks

Well-defined, brown, mildly erythematous, reticulated patch

Anterior aspect of left thigh

Not described

Bilic, Adams (2004)

21/M

Erythema Ab Igne

Student; frequent use of laptop for 3 months

Reticulated, dark reddish-brown pigmented patch

Anterior aspect of left thigh

Not described

Kucuktas (2009)