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acneiform eruption
Etiology:
- adverse drug reaction
- EGF receptor inhibitors
- cetuximab, sorafenib
- glucocorticoids
- anabolic steroids (testosterone), azathioprine, bromides, cyclosporine, disulfiram, iodides, isoniazid, lithium, phenobarbital, phenytoin, progesterone, quinidine, vitamins (thiamine, riboflavin, pyridoxine, vitamin B12 & vitamin D2)
- infections
- hormonal or metabolic disturbance
- genetic diseases
Clinical manifestations:
- sudden onset weeks to months after starting medication [2]
- monotonous lesion morphology
- dermatoses that resemble acne vulgaris
- lesions may be papulopustular, nodular, or cystic
- no comedones
- lesions may appear on upper trunk & arms when cause is systemic [2] Differential diagnsis:
- acne vulgaris
- allergic contact dermatitis
- folliculitis
- drug eruption
- eruptive vellus hair cysts
- Favre-Racouchot syndrome (nodular elastosis with cysts & comedones)
- fibrous papule of the face
- milia
- perioral dermatitis
- pseudofolliculitis of the beard
- rosacea
- seabather's eruption
- sporotrichosis
- syphilis
- syringoma
- trichilemmoma
- trichoepithelioma
- tuberous sclerosis
Management:
- stop offending agent
- topical or oral antibiotics
- low-potency topical glucocorticoids [2]
Related
acne
Specific
perioral dermatitis; periorificial dermatitis
General
skin disease (dermatologic disorder, dermatopathy, dermatosis)
eruption
References
- Kuflik, JH and Elston DM
Medscape: Acneiform eruption
http://emedicine.medscape.com/article/1072536-overview
- Medical Knowledge Self Assessment Program (MKSAP) 16, 17.
American College of Physicians, Philadelphia 2012, 2015