Successful Treatment With Everolimus for Multifocal Lymphangioendotheliomatosis With Thrombocytopenia in an Infant

Multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT) is a rare disease characterized by the presence of multiple cutaneous lesions and bleeding from the gastrointestinal tract with thrombocytopenia. Because of the varied phenotypes and rarity of MLT, a treatment strategy has not been standardized thus far. We describe a case of infantile MLT that did not respond to treatment with propranolol, prednisolone, or vincristine. We successfully treated the patient with everolimus, an inhibitor of the mammalian target of rapamycin. Our case provides the first evidence of the effectiveness of everolimus for the treatment of MLT.