Picture of Lymphangioma
The term lymphatic malformation is the new terminology for what was formerly called “lymphangioma.” These typical lesions comprise multiple, grouped, small macroscopic vesicles filled with clear or serosanguineous fluid (“frog-spawn”). However, these are not true vesicles but microcystic lesions (lymphangioma) as opposed to a macrocystic lesion (cystic hygroma), which is located deep in the dermis and subcutis and appears as a large soft subcutaneous tumor often distorting the face or an extremity. The microcystic LM is present at birth or appears in infancy or even in childhood. It does not disappear spontaneously. Bacterial infection may occur. LM may occur as an isolated solitary lesion, or cover large areas (up to 10 20 cm); it may be associated with a capillary venous lymphatic (CVL) malformation. The lesion can be excised, if feasible, or treated with sclerotherapy.
Source: Fitzpatrick's Color Atlas & Synopsis of Clinical Dermatology Klaus Wolff, Richard Allen Johnson, Dick Suurmond Copyright 2005, 2001, 1997, 1993 by The McGraw-Hill Companies. All Rights reserved.