Target lesion
From Self-sufficiency
Target lesion in dermatology is the typical lesion of erythema multiforme (EM) in which a vesicle is surrounded by an often hemorrhagic maculopapule; EM is often self-limited, of acute onset, resolves in three to six weeks, and has a cyclical pattern; EM lesions are 'multiform' and include macules, papules, vesicles, bullae. Etiology Idiopathic or follow infections, drug therapy or occur in immunocompromised hosts
Morphology
Target lesion consists of three zones :
- Dark centre of small papule, vesicle, or bulla (iris)
- Pale intermediate zone
- Peripheral rim of erythema
References
the free dictionary : medical dictionary [1]
