The diagnostic workup is directed by the presenting signs and symptoms, and can involve: * blood counts, clotting studies, and other laboratory testing * imaging tests (ultrasound, CT scan, MRI, sometimes angiography, and rarely nuclear medicine scans) * Biopsy of the tumor is contraindicated due to risk of bleeding. Patients uniformly show severe thrombocytopenia, low fibrinogen levels, high fibrin degradation products (due to fibrinolysis), and microangiopathic hemolysis.
Kasabach–Merritt syndrome
Rapp–Hodgkin syndrome
Bare lymphocyte syndrome type II
Pitt–Hopkins syndrome
Schwartz–Jampel syndrome
Hypotrichosis–lymphedema–telangiectasia syndrome
Schwartz–Matsuo syndrome
Bare lymphocyte syndrome