Correlation of angioma / angiokeratoma

From dermoscopedia
(2 votes)
Description This chapter covers the correlation of angioma / angiokeratoma
Author(s) Oriol Yélamos · Ralph P. Braun
Responsible author Oriol Yélamos→ send e-mail
Status unknown
Status update January 1, 2019
Status by Ralph P. Braun


Lacunae are multiple well-demarcated round/oval and reddish structures arranged in clusters, separated by a white rim called septae. Histologically, they correspond to dilated, thin-walled vessels in the papillary dermis. Lacunae are the hallmark of vascular tumors, mainly angiomas (figure). Dark (violaceous, blue-black, or black) lacunae 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).

Cookies help us deliver our services. By using our services, you agree to our use of cookies.