Thelansis

  Lymphatic malformations, also known as low-flow vascular malformations, are congenital malformations resulting from errors in the development of the lymphatic vessels. These malformations may occur in isolation or in combination with other malformations of the capillaries, veins, and arteries. The exact cause of these malformations is not well understood. The International Society for the Study of Vascular Anomalies (ISSVA) classifies these malformations into three categories: abnormalities of lymphatic vessels and nodes leading to lymphedema, lymphatic mass lesions composed of varying-sized cysts, and central conducting lymphatic anomalies relating to the circulation of chyle. The head and neck region is the most common site of clinically relevant lymphatic malformations. These malformations tend to grow proportionately with the child, and there is an increased risk of progression during adolescence. Infection is a common clinical complication in young patients with lymphatic ...

 Lymphatic malformations are vascular malformations characterized by low flow and arising from developmental errors in the vascular system. They are benign and typically observed at birth or during early childhood. Lymphatic malformations manifest as mass lesions consisting of cysts of various sizes. They can occur in various body parts, particularly in areas abundant in lymphatic vessels such as the cervical and axillary regions and the groin, trunk, retroperitoneum, extremities, and abdominal or thoracic cavities. These malformations are categorized into three types: the first type is caused by abnormalities in lymphatic vessels and nodes, resulting in the inability to clear lymph and leading to lymphedema. The second type involves mass lesions composed of cysts of different sizes. The third category is characterized by central conducting lymphatic anomalies associated with the circulation of chyle. Histologically, lymphatic malformations consist of endothelial-lined vascular cha...