Superficial lymphatic malformations (LMs) include a group of vascular malformations of the lymphatic network involving the skin and the subcutaneous tissue. Microcystic LM clinically presents as a cluster of translucent and clear vesicles (compared to frog spawn) that tend to increase in number and size. Dermatoscopy usually reveals a whitish or yellowish well-circumscribed lacunar pattern. Frequently, based on the possible presence of blood wrapped by pale septa, scattered reddish areas within the yellowish lacunae or sole reddish lacunae may be observed, with linear and sharp vessels. In some cases, the variable quantity of blood content within the lacunae generates a wide spectrum of colour transition from yellow to purple from the upper to the lower part, according to gravity, which is described as hypopyon-like pattern and is due to blood sedimentation.

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Lymphatic Malformations

  • Iria Neri,
  • Martina Mussi

摘要

Superficial lymphatic malformations (LMs) include a group of vascular malformations of the lymphatic network involving the skin and the subcutaneous tissue. Microcystic LM clinically presents as a cluster of translucent and clear vesicles (compared to frog spawn) that tend to increase in number and size. Dermatoscopy usually reveals a whitish or yellowish well-circumscribed lacunar pattern. Frequently, based on the possible presence of blood wrapped by pale septa, scattered reddish areas within the yellowish lacunae or sole reddish lacunae may be observed, with linear and sharp vessels. In some cases, the variable quantity of blood content within the lacunae generates a wide spectrum of colour transition from yellow to purple from the upper to the lower part, according to gravity, which is described as hypopyon-like pattern and is due to blood sedimentation.