Table 1-Cutaneous Eruptions due to Methotrexate 1-24

 

Eruptions linked to methotrexate

Agent administered with Methotrexate/Comments

Incidence if available

Toxic/apoptic side effect

Maculopapular eruption

 

15%

 

Folliculitis

 

 

 

Acral Erythema

Also referred to as Burgdorf's reaction

 

yes

Erythema multiforme

 

 

yes

Urticaria

 

4% in psoriasis patients

 

Radiation recall dermatitis

 

 

yes

Exacerbation of urticarial vasculitis

 

 

maybe

Reactivation of sunburn

 

 

yes

Photosensitivity

 

5%

maybe

Vasculitis

 

 

 

Severe skin rash

Eruptions more severe than maculopapular eruptions and less severe then TEN

 

yes

Erythema

UVB

 

 

Erythema

Independent of UVB

 

 

Angioedema

 

 

 

Toxic epidermal necrolysis (TEN)

Use of trimethoprim-sulfamethoxazole (Bactrim)

 

yes

Toxic epidermal necrolysis

Independent of Bactrim use

 

yes

Stevens-Johnson syndrome

Acetylic salicylic acid, myelosuppression present

 

yes

Allergic reaction

Unspecified

 

 

Capillaritis

 

 

 

Alopecia- telogen  effluvium

 

6% (low dose)-8% (high dose)

 

Alopecia- anagen effluvium

High dose methotrexate

 

yes

Horizontal pigmented bands developing within scalp hair

 

 

 

Papular eruption in patients with rheumatic disease

 

 

 

Accelerated nodulosis and vasculitis in rheumatoid arthritis ± Raynaud's phenomenon

 

 

 

Oncholysis/onchomadesis

 

 

 

Hyperpigmentation

 

 

 

Alteration in nail pigment

 

 

 

Type 1 erosions/ulcerations Erosions in psoriatic plaques with methotrexate use27,28

Can happen as the dose is increased or where renal clearance suddenly decreases  (e.g. new NSAID use)

 

likely

Type 2 erosions/ulcerations, Skin ulcerations in non-psoriatic, but previously dermatitis altered skin (primarily on the legs due to stasis dermatitis).

 

 

yes

Unspecified type erosions Cutaneous ulceration on the knuckles

 

 

yes

Unspecified type erosions Erosions over pressure areas

 

 

yes

Ulcerative stomatitis

Overdose of methotrexate

 

yes

Acne

 

 

 

Furunculosis

 

 

 

Oral ulcerations

 

 

yes

Reactivation  of  irritant dermatitis

 

 

yes

X-ray portal

 

 

yes

Severe stomatitis and skin rash

Prior therapy with cis-diamminedichloride platinum (CDDP). Myleosupression, diarrhea, renal failure, hepatic toxicity present

Death rate 6%

yes

Mucositis

More common in high doses

 

yes