Table 2.
Classification of childhood hematological malignancies diagnosed in the Modena and Reggio Emilia municipal populations from 1986 to 2007
| Diagnosis | ICD-9a | n | (%) |
|---|---|---|---|
| All malignant neoplasms of lymphatic and hematopoietic tissue | 200-208 | 64 | (100.0) |
| Lymphosarcoma and reticulosarcoma and other specified malignant tumors of lymphatic tissue |
|||
| Lymphosarcoma | 200.1 | 6 | (9.3) |
| Burkitt's tumor or lymphoma | 200.2 | 2 | (3.1) |
| Hodgkin's disease | |||
| Lymphocytic-histiocytic predominance | 201.4 | 1 | (1.6) |
| Nodular sclerosis | 201.5 | 1 | (1.6) |
| Mixed cellularity | 201.6 | 1 | (1.6) |
| Hodgkin's disease, unspecified | 201.9 | 2 | (3.1) |
| Other malignant neoplasms of lymphoid and histiocytic tissue | |||
| Letterer-Siwe disease | 202.5 | 5 | (7.8) |
| Lymphoid leukemia | |||
| Acute lymphoid leukemia | 204.0 | 36 | (56.2) |
| Chronic lymphoid leukemia | 204.1 | 1 | (1.6) |
| Unspecified lymphoid leukemia | 204.9 | 1 | (1.6) |
| Myeloid leukemia | |||
| Acute myeloid leukemia | 205.0 | 3 | (4.7) |
| Chronic myeloid leukemia | 205.1 | 1 | (1.6) |
| Unspecified myeloid leukemia | 205.9 | 1 | (1.6) |
| Monocytic leukemia | |||
| Acute monocytic leukemia | 206.0 | 3 | (4.7) |
a International Classification of Diseases, 9thedition