Correlation of angioma / angiokeratoma

From dermoscopedia

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 Editor: Oriol Yélamos

 Author(s): Oriol Yélamos     ·  Ralph P. Braun
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Description This chapter covers the correlation of angioma / angiokeratomais a benign cutaneous lesion of capillaries, resulting in small marks of red to blue color and characterized by hyperkeratosisThis glossary term has not yet been described.
Author(s) Oriol Yélamos · Ralph P. Braun
Responsible author Oriol Yélamos→ send e-mail
Status released
Status update January 1, 2019
Status by Ralph P. Braun


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LacunaeThis glossary term has not yet been described.

Lacunae are multiple well-demarcated round/oval and reddish structuresThis glossary term has not yet been described. arranged in clusters, separated by a white rim called septae. Histologically, they correspond to dilated, thin-walled vesselsThis glossary term has not yet been described. in the papillary dermis. Lacunae are the hallmark of vascular tumors, mainly angiomas (figure). Dark (violaceous, blue-black, or black) lacunaeThis glossary term has not yet been described. reveal partially or completely thrombosed dermal vessels located deeper in the dermis, which are very specific of solitary angiokeratomas (Zaballos et al., 2007). In targetoid hemosiderotic angiokeratomas a central dark lacunae is surrounded by a peripheral red-brownish homogeneous area.
Histopathologically, it reveals the presence of less dilated angulated vascular spaces, hemosiderin deposition and extravasated erythrocytes in the mid and deep dermis (Zaballos et al., 2015).