Research Article
Primary Cutaneous Lymphomas in Thailand: A 10-Year Retrospective Study
Table 1
Frequency of primary cutaneous lymphomas by sex, median age at onset, and at diagnosis of the diseases.
| | Total (%) | Male | Female | M : F ratio | Age at onset, median (range), years | Age at diagnosis, median (range), years | | Total | 137 (100) | 57 | 80 | 1 : 1.4 | 35 (1-80) | 40 (1-83) | | Cutaneous T-cell and NK-cell lymphomas | 134 (97.8) | 56 | 78 | 1 : 1.4 | 35 (1-80) | 39 (1-83) | | Mycosis fungoides | 93 (67.9) | 38 | 55 | 1 : 1.4 | 34 (1-80) | 40 (1-83) | | Sézary syndrome | 1 (0.7) | 1 | 0 | - | 64 (64) | 66 (66) | | Primary cutaneous anaplastic large cell lymphoma | 5 (3.6) | 3 | 2 | 1.5 : 1 | 51 (11-66) | 51 (11-66) | | Lymphomatoid papulosis | 2 (1.5) | 1 | 1 | 1 : 1 | 52.5 (42-63) | 52.5 (42-63) | | Subcutaneous panniculitis-like T-cell lymphoma | 29 (21.2) | 11 | 18 | 1 : 1.6 | 31 (9-61) | 31 (11-61) | | Extranodal NK/T-cell lymphoma, nasal type | 1 (0.7) | 1 | 0 | - | 54 (54) | 57 (57) | | Primary cutaneous gamma/delta T-cell lymphoma | 2 (1.5) | 0 | 2 | - | 41.5 (13-70) | 42.5 (13-72) | | Primary cutaneous peripheral T-cell lymphoma, not otherwise specified | 1 (0.7) | 1 | 0 | - | 58 (58) | 60 (60) | | Cutaneous B-cell lymphomas | 3 (2.2) | 1 | 2 | 1 : 2 | 72 (67-74) | 72 (68-74) | | Primary cutaneous diffuse large B-cell lymphoma, leg type | 2 (1.5) | 1 | 1 | 1 : 1 | 69.5 (67-72) | 70 (68-72) | | Primary cutaneous follicle center lymphoma | 1 (0.7) | 0 | 1 | - | 74 (74) | 74 (74) |
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