“…The most frequent of hematologic malignancy are myeloid or lymphoblastic leukemia, chronic myeloid leukemia, and lymphoma. Concerning solid tumors, the most frequent is gastric adenocarcinoma followed by cancer of unknown origin, prostate adenocarcinoma, stomach, and colon cancer . In 9% of cases, there are other etiologies such as severe infections, drugs, sickle cell disease, and antiphospholipid syndrome…”