Table 2.
Cutaneous lymphomas diagnosed during 2001-2005 in the 16 SEER program registries by histologic type and race/ethnicity
| Total | Rate* | Non-Hispanic white |
Black |
Hispanic white |
Asian/PacificIslander |
B:NHW |
HW:NHW |
A/PI:NHW |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Rate | Cases | Rate | Cases | Rate | Cases | Rate | IRR | P | IRR | P | IRR | P | |||
| Total | 3874§ | 10.7 | 2919 | 11.5 | 400 | 11.5 | 328 | 7.9 | 227 | 7.1 | 0.99 | .507 | 0.69 | < .001 | 0.61 | < .0001 |
| Mature T-cell and NK-cell neoplasms (CTCLs) | 2769 | 7.7 | 2032 | 8.1 | 349 | 10.0 | 219 | 5.1 | 169 | 5.1 | 1.24 | .001 | 0.64 | < .001 | 0.64 | < .0001 |
| Mycosis fungoides (MF) | 1487 | 4.1 | 1033 | 4.1 | 212 | 5.9 | 132 | 2.9 | 110 | 3.3 | 1.44 | < .001 | 0.71 | .001 | 0.80 | .0251 |
| Sézary syndrome (SS) | 33 | 0.1 | 28 | 0.1 | 1 | ∼‖ | 4 | ∼ | 0 | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ |
| CD30+ T-cell lymphoproliferative disorders of the skin (CD30+ LPD) | 396 | 1.1 | 315 | 1.3 | 31 | 0.9 | 29 | 0.7 | 21 | 0.7 | 0.71 | .076 | 0.57 | .004 | 0.52 | .002 |
| Subcutaneous panniculitis-like T-cell lymphoma (SCPTL) | 23 | 0.1 | 11 | 0.0 | 6 | ∼ | 0 | ∼ | 6 | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ |
| Primary cutaneous peripheral T-cell lymphoma (pcPTL) | 809 | 2.2 | 634 | 2.5 | 96 | 2.8 | 50 | 1.3 | 29 | 1.0 | 1.14 | .285 | 0.52 | < .001 | 0.38 | < .0001 |
| Other‡ | 21 | 0.1 | 11 | 0.0 | 3 | ∼ | 5 | ∼ | 2 | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ |
| Mature B-cell neoplasms (CBCLs) | 1105 | 3.1 | 887 | 3.5 | 51 | 1.5 | 109 | 2.8 | 58 | 1.9 | 0.43 | < .001 | 0.80 | .038 | 0.55 | < .0001 |
| Cutaneous marginal zone B-cell lymphoma (pcMZL) | 274 | 0.8 | 219 | 0.9 | 12 | 0.3 | 31 | 0.7 | 12 | 0.4 | 0.37 | .001 | 0.83 | .381 | 0.42 | .0016 |
| Cutaneous follicle center lymphoma (pcFCL) | 331 | 0.9 | 281 | 1.1 | 11 | 0.4 | 29 | 0.7 | 10 | 0.3 | 0.33 | < .001 | 0.62 | .015 | 0.29 | < .0001 |
| Cutaneous diffuse large B-cell lymphoma (pcDLBCL) | 443 | 1.2 | 347 | 1.3 | 23 | 0.7 | 42 | 1.2 | 31 | 1.1 | 0.50 | .001 | 0.89 | .525 | 0.80 | .2579 |
| pcDLBCL-leg | 101 | 0.3 | 70 | 0.3 | 4 | ∼ | 12 | 0.4 | 15 | 0.5 | 0.49 | .186 | 1.62 | .194 | 2.10 | .0263 |
| pcDLBCL-other | 342 | 1.0 | 277 | 1.1 | 19 | 0.5 | 30 | 0.8 | 16 | 0.5 | 0.51 | .003 | 0.71 | .103 | 0.49 | .0029 |
| Extracutaneous lymphomas involving the skin§ | 57 | 0.2 | 40 | 0.2 | 5 | ∼ | 7 | ∼ | 5 | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ | ∼ |
IRR indicates incidence rate ratio; and pc, primary cutaneous.
*
Rates are per 1 000 000 and age-adjusted to the 2000 US standard population (19 age groups; Census P25-1130).
‡
Other includes extranodal NK/T-cell lymphoma, adult T-cell leukemia/lymphoma, and angioimmunoblastic T-cell lymphoma.
§
This group includes small lymphocytic lymphoma, lymphoplasmacytic lymphoma, mantle cell lymphoma, and Burkitt lymphoma. Immature hematologic neoplasms were excluded (n=10) due to small numbers.
‖
Statistic not shown, based on fewer than 10 cases.