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Targetoid hemosiderotic hemangioma, also known as a hobnail hemangioma is a skin condition characterized by a central brown or purplish papule that is surrounded by an ecchymotic halo. [1] [2] It may appear similar to melanoma. It was first described by Santa Cruz and Aronberg in 1988. [2]
A maculopapular rash is a type of rash characterized by a flat, red area on the skin that is covered with small confluent bumps. It may only appear red in lighter-skinned people. The term "maculopapular" is a compound: macules are small, flat discolored spots on the surface of the skin; and papules are small, raised bumps.
A papule may have a rounded, pointed or flat top, and may have a dip. [2] It can be polygonal but is never rectangular or square. [6] It can appear with a stalk, be thread-like or look warty. [3] Ulceration, oozing, bleeding or thin blood vessels may be present in a papule. [6] It can be soft or firm and its surface may be rough or smooth. [2]
The central punctum of the papule frequently develops into a vesiculopustular structure, experiences hemorrhagic necrosis, ulcerates, and is covered in reddish-brown crusts. There may be postinflammatory hyper- and hypopigmentation as well as varioliform scars.
Common symptoms include pruritic erythematous papules, [3] with a size of 1–3 mm, [4] and a central punctum, [5] as well as macules and urticaria. [2] Individuals frequently describe repeated or long-term episodes of papular outbreaks, often appearing in clusters and accompanied by severe itching sensations. [ 6 ]
Rashes typical of dermatomyositis, which include heliotrope rash, Gottron sign, and Gottron papules The fifth criterion is what differentiates dermatomyositis from polymyositis; the diagnosis is considered definite for dermatomyositis if three of items 1 through 4 are present in addition to 5, probable with any two in addition to 5, and ...
In dermatology, a target lesion or bull's-eye lesion, named for its resemblance to the bull's-eye of a shooting target, is a rash with central clearing. It occurs in several diseases, as follows: Target lesions are the typical lesions of erythema multiforme, in which a vesicle is surrounded by an often hemorrhagic maculopapule. Erythema ...
In this case, the central portion is a complex papule, and the periphery is macular, irregular, indistinct and slightly pink. Characteristic rete ridge bridging, shouldering, and lamellar fibrosis. H&E stain. Blue nevus: It is blue in color as its melanocytes are very deep in the skin. Characteristic pigmented melanocytes between bundles of ...