On 11 April, laboratory tests revealed severe pancytopenia (WBC 2.82 × 109/L, Hb 105 g/L, MCV 103 fL, RDW‐SD 73.10 fL, RDW‐CV 17.90%, and PLT 79 × 109/L), and abdominal CT demonstrated free intraperitoneal air and peritonitis. This evidence concerns the gene GSTM1 and Pancytopenia.