Three months after surgery for GCT, in April 2013, he presented with fever, and a full blood count revealed severe thrombocytopenia and mild anemia, but a normal white blood cell (wbc) count (wbc 4.2×109/L, Hb 102g/L, platelet count 16×109/L). Here, GSTM1 is linked to Thrombocytopenia.