Dermoscopy of cutaneous lymphangioma circumscriptum

Area of Science:

• Dermatology
• Vascular Malformations

Background:

• Lymphangiomas are congenital lymphatic malformations presenting as clusters of translucent vesicles.
• Dermoscopic findings in lymphangiomas typically include yellow lacunae with pale septa or reddish-blue lacunae.

Purpose of the Study:

• To describe a unique dermoscopic finding in a patient with a lymphangioma.
• To introduce a new descriptive term for a specific dermoscopic feature.

Main Methods:

• Case presentation of a young male with a seven-year history of a vesicular lesion.
• Dermoscopic examination of the lesion.

Main Results:

• Dermoscopy revealed white-yellowish, well-circumscribed, roundish lacunae surrounded by pale septa.
• A novel finding of blood accumulation within some lacunae, termed "half-and-half lacuna," was observed, resembling a hypopyon.

Conclusions:

• The "half-and-half lacuna" is a newly described dermoscopic sign potentially associated with lymphangiomas.
• This specific dermoscopic feature may aid in the diagnosis of lymphangiomas.