Images (2)
Reflected light microscopy, intralesional vascular aneurysms and blood lakes
Synonym(s)
intralesional aneurysmatic vessels and blood lakes
DefinitionThis section has been translated automatically.
Within a skin lesion aneurysmatic dilatation of horizontal blood vessels and oval hemorrhagic foci not visible to the naked eye.
General informationThis section has been translated automatically.
- Reflected light microscopy: Single, circumscribed or diffusely arranged, horizontally running blood vessels within the lesion with strong variations in calibre, aneurysmatic sacculations, vascular polymorphies and blood leaks. Oval blood lakes and thrombus formation. In whitish opaque connective tissue tumor replacement structures and amelanotic melanomas, the capillaries altered in this way are particularly numerous.
OccurrenceThis section has been translated automatically.
Among the melanocytic skin tumors in more than 30% of malignant melanomas with a penetration depth of Clark Level IV.
LiteratureThis section has been translated automatically.
- Argenziano G et al (2004) Vascular structures in skin tumors. Arch Dermatol 140: 1485-1489
- Hundeiker M (1972) To illustrate the vascular architecture of the skin. Arch Derm Forsch 245: 163-169
- Kreusch JF (2003) Vascularization patterns of pigmented and non-pigmented skin tumors. In: Blum A, Kreusch JF, Bauer J, Garbe C (Hrsg) Dermatoscopy of skin tumors. Steinkopff, Darmstadt, S. 59-66
- Schulz H (1992) Angiectatic structural elements of benign and malignant pigment cell tumors in reflected light microscopy. Act Dermatol 18: 295-298