At his first consultation, his blood work revealed leukopenia (3,000 cells/μL), thrombocytopenia (40,000/μL), elevated serum angiotensin-converting enzyme (ACE) levels of 124.4 U/L (normal range: 35-90 U/L), and β2 microglobulin of 8,900 ng/mL (normal range: 800-2,400 ng/mL). This evidence concerns the gene ACE and Thrombocytopenia.