Cutaneous lymphomas diagnosed during 2001-2005 in the 16 SEER program registries by histologic type and anatomic location
| . | Totalcases* . | Head and neck . | Trunk . | Upper limb† . | Lower limb‡ . | Multisite . | NOS . | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | ||
| Total | 3874 | 816 | 21.1 | 803 | 20.7 | 444 | 11.5 | 567 | 14.6 | 73 | 1.9 | 1171 | 30.2 |
| Mature T-cell and NK-cell neoplasms (CTCLs) | 2769 | 269 | 9.7 | 610 | 22.0 | 313 | 11.3 | 442 | 16.0 | 69 | 2.5 | 1066 | 38.5 |
| Mycosis fungoides (MF) | 1487 | 42 | 2.8 | 371 | 25.0 | 126 | 8.5 | 231 | 15.5 | 40 | 2.7 | 677 | 45.5 |
| Sézary syndrome (SS) | 33 | 0 | 0.0 | 2 | 6.1 | 0 | 0.0 | 1 | 3.0 | 2 | 6.1 | 28 | 84.9 |
| CD30+ T-cell lymphoproliferative disorders of the skin (CD30+ LPD) | 396 | 73 | 18.4 | 60 | 15.2 | 81 | 20.5 | 82 | 20.7 | 5 | 1.3 | 95 | 24.0 |
| Subcutaneous panniculitis-like T-cell lymphoma (SCPTL) | 23 | 1 | 4.4 | 1 | 4.4 | 4 | 17.4 | 3 | 13.0 | 1 | 4.4 | 13 | 56.5 |
| Primary cutaneous peripheral T-cell Lymphoma (pcPTL) | 809 | 150 | 18.5 | 172 | 21.3 | 98 | 12.1 | 121 | 15.0 | 20 | 2.5 | 248 | 30.7 |
| Extranodal NK/T-cell lymphoma, nasal type | 12 | 3 | 25.0 | 3 | 25.00 | 1 | 8.3 | 2 | 16.7 | 0 | 0.0 | 3 | 25.0 |
| Adult T-cell leukemia/lymphoma (HTLV-1 pos) | 2 | 0 | 0.0 | 0 | 0.0 | 1 | 50.0 | 1 | 50.0 | 0 | 0.0 | 0 | 0.0 |
| Angioimmunoblastic T-cell lymphoma | 7 | 0 | 0.0 | 1 | 14.3 | 2 | 28.6 | 1 | 14.3 | 1 | 14.3 | 2 | 28.6 |
| Mature B-cell neoplasms (CBCLs) | 1105 | 547 | 49.5 | 193 | 17.5 | 131 | 11.9 | 125 | 11.3 | 4 | 0.4 | 105 | 9.5 |
| Cutaneous marginal zone B-cell lymphoma (pcMZL) | 274 | 98 | 35.8 | 62 | 22.6 | 59 | 21.5 | 14 | 5.1 | 2 | 0.7 | 39 | 14.2 |
| Cutaneous follicle center lymphoma (pcFCL) | 331 | 231 | 69.8 | 45 | 13.6 | 18 | 5.4 | 4 | 1.2 | 0 | 0.0 | 33 | 10.0 |
| Cutaneous diffuse large B-cell lymphoma (pcDLBCL) | 443 | 188 | 42.4 | 80 | 18.1 | 44 | 9.9 | 101 | 22.8 | 2 | 0.5 | 28 | 6.3 |
| Extracutaneous lymphomas involving the skin§ | 57 | 30 | 52.6 | 6 | 10.5 | 10 | 17.5 | 6 | 10.5 | 0 | 0.0 | 5 | 8.8 |
| . | Totalcases* . | Head and neck . | Trunk . | Upper limb† . | Lower limb‡ . | Multisite . | NOS . | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | Cases . | % . | ||
| Total | 3874 | 816 | 21.1 | 803 | 20.7 | 444 | 11.5 | 567 | 14.6 | 73 | 1.9 | 1171 | 30.2 |
| Mature T-cell and NK-cell neoplasms (CTCLs) | 2769 | 269 | 9.7 | 610 | 22.0 | 313 | 11.3 | 442 | 16.0 | 69 | 2.5 | 1066 | 38.5 |
| Mycosis fungoides (MF) | 1487 | 42 | 2.8 | 371 | 25.0 | 126 | 8.5 | 231 | 15.5 | 40 | 2.7 | 677 | 45.5 |
| Sézary syndrome (SS) | 33 | 0 | 0.0 | 2 | 6.1 | 0 | 0.0 | 1 | 3.0 | 2 | 6.1 | 28 | 84.9 |
| CD30+ T-cell lymphoproliferative disorders of the skin (CD30+ LPD) | 396 | 73 | 18.4 | 60 | 15.2 | 81 | 20.5 | 82 | 20.7 | 5 | 1.3 | 95 | 24.0 |
| Subcutaneous panniculitis-like T-cell lymphoma (SCPTL) | 23 | 1 | 4.4 | 1 | 4.4 | 4 | 17.4 | 3 | 13.0 | 1 | 4.4 | 13 | 56.5 |
| Primary cutaneous peripheral T-cell Lymphoma (pcPTL) | 809 | 150 | 18.5 | 172 | 21.3 | 98 | 12.1 | 121 | 15.0 | 20 | 2.5 | 248 | 30.7 |
| Extranodal NK/T-cell lymphoma, nasal type | 12 | 3 | 25.0 | 3 | 25.00 | 1 | 8.3 | 2 | 16.7 | 0 | 0.0 | 3 | 25.0 |
| Adult T-cell leukemia/lymphoma (HTLV-1 pos) | 2 | 0 | 0.0 | 0 | 0.0 | 1 | 50.0 | 1 | 50.0 | 0 | 0.0 | 0 | 0.0 |
| Angioimmunoblastic T-cell lymphoma | 7 | 0 | 0.0 | 1 | 14.3 | 2 | 28.6 | 1 | 14.3 | 1 | 14.3 | 2 | 28.6 |
| Mature B-cell neoplasms (CBCLs) | 1105 | 547 | 49.5 | 193 | 17.5 | 131 | 11.9 | 125 | 11.3 | 4 | 0.4 | 105 | 9.5 |
| Cutaneous marginal zone B-cell lymphoma (pcMZL) | 274 | 98 | 35.8 | 62 | 22.6 | 59 | 21.5 | 14 | 5.1 | 2 | 0.7 | 39 | 14.2 |
| Cutaneous follicle center lymphoma (pcFCL) | 331 | 231 | 69.8 | 45 | 13.6 | 18 | 5.4 | 4 | 1.2 | 0 | 0.0 | 33 | 10.0 |
| Cutaneous diffuse large B-cell lymphoma (pcDLBCL) | 443 | 188 | 42.4 | 80 | 18.1 | 44 | 9.9 | 101 | 22.8 | 2 | 0.5 | 28 | 6.3 |
| Extracutaneous lymphomas involving the skin§ | 57 | 30 | 52.6 | 6 | 10.5 | 10 | 17.5 | 6 | 10.5 | 0 | 0.0 | 5 | 8.8 |
NOS indicates not otherwise specified; and pc, primary cutaneous.
Immature hematologic neoplasms had a total of 10 cases (5 on the head and neck, 2 on the trunk, 1 on the upper limb, and 2 NOS).
Upper limb (UL) cases include all of upper extremity and shoulder.
Lower limb (LL) cases include all of lower extremity and hip.
This group includes small lymphocytic lymphoma, lymphoplasmacytic lymphoma, mantle cell lymphoma, and Burkitt lymphoma.