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Cavernous lymphangioma of the spleen in a patient with Klippel-Trenaunay-Weber syndrome.

A 31-year-old woman presented with hypertrophy of the left upper extremity and thrombocytopenia. Physical examination revealed splenomegaly, and laboratory investigation revealed thrombocytopenia, elevation of cross-linked fibrin degradation products (XDP), and thrombin-antithrombin III complex (TAT). A diagnosis of Klippel-Trenaunay-Weber (K-T-W) syndrome was established by the dermatologic findings and angiography of the extremities. A splenic cavernous lymphangioma was diagnosed by ultrasonography and angiography, and was confirmed by pathology following splenectomy. Post-operatively, the platelet count increased, and hemostatic parameters normalized. Cavernous lymphangioma is a rare complication of Klippel-Trenaunay-Weber syndrome. Splenectomy proved to be an effective therapy for both cavernous lymphangioma and consumptive coagulopathy in Klippel-Trenaunay-Weber syndrome.