[Conference of morphological analysis].

To date, hematological malignancies have been diagnosed and classified by morphological analysis following ordinary and special staining such as Wright's and Giemsa's double staining. The FAB classification, which is applied for acute leukemia, is a typical classification system used worldwide. Recently, various reference techniques have been developed for the diagnosis of hematological malignancies and are useful for diagnosing hematological diseases, but morphological analysis still remains the basic reference technique. Therefore, expertise in morphological analysis is extremely important, and full training in this field is necessary.