| All Races | Asian/Other | Black | Hispanic | White | ||||||
| Histology (ICD-O) (2) | Cases | Local(%) | Cases | Local(%) | Cases | Local(%) | Cases | Local(%) | Cases | Local(%) |
| Infiltrating duct carcinoma, NOS (8500) | 59,098 | 62.8 | 3,018 | 59.9 | 3,141 | 52.2 | 5,432 | 53.3 | 47,105 | 64.8 |
| Lobular carcinoma (8520,8521) | 5,923 | 63.0 | 154 | 55.2 | 212 | 53.3 | 393 | 56.2 | 5,127 | 64.0 |
| Infiltrating duct and lobular carcinoma (8522) | 3,701 | 61.9 | 143 | 63.6 | 137 | 49.6 | 303 | 54.1 | 3,089 | 63.1 |
| Comedocarcinoma (8501) | 2,278 | 72.6 | 192 | 67.7 | 164 | 61.0 | 252 | 62.3 | 1,658 | 75.8 |
| Mucinous and mucin-producing adenocarcinoma (8480,8481) | 1,980 | 87.5 | 132 | 86.4 | 116 | 84.5 | 173 | 85.0 | 1,538 | 88.1 |
| Medullary carcinoma (8510,8512) | 1,413 | 67.8 | 84 | 72.6 | 160 | 65.0 | 238 | 62.6 | 925 | 69.1 |
| Tubular adenocarcinoma (8211) | 1,017 | 93.3 | 20 | 95.0 | 28 | 85.7 | 61 | 90.2 | 899 | 93.8 |
| Papillary adenocarcinoma (8050,8260,8503) | 504 | 84.3 | 42 | 88.1 | 48 | 85.4 | 52 | 84.6 | 357 | 83.5 |
| Paget's disease (8540-8543) | 780 | 61.2 | 38 | 68.4 | 62 | 50.0 | 69 | 40.6 | 597 | 63.8 |
Source: California Cancer Registry, November 1994. Excludes lymphohematopoietic neoplasms of the breast (ICD-O, Field Trial edition, histology codes 9590-9970) (2).
1 Race/ethnicity categories are mutually exclusive. Persons of Hispanic ethnicity are identified by medical record and/or surname, and may be of any race. Persons of unknown race/ethnicity are excluded from race-specific data.
2 Numbers in parentheses are ICD-O, Field Trial edition, histology codes (2). NOS=not otherwise specified.
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