Thelansis

  Microcystic lymphatic malformation (MLM), also known as Lymphangioma circumscriptum (LC), is a hamartomatous malformation affecting the lymphatic channels within the skin. This benign ectasia comprises two distinct components: (a) the clinically apparent dermal vesicular element and (b) the less conspicuous subcutaneous cisternal element situated at a deeper level. At birth, 50% of all lymphatic malformations are already noticeable, and up to 90% receive a diagnosis by the end of the second year of life due to clinical manifestations. The condition affects both genders equally, showing no preference for any particular race. The exact pathogenesis of lymphatic malformations remains unknown. Traditionally, these malformations were classified as capillary, cavernous, or cystic lymphatic malformations based on histologic features. However, a more recent classification based on radiographic morphology categorizes them as microcystic, macrocystic, or combined lymphatic malformations....