Table 2.
Dermoscopic characteristics of primary cutaneous B-cell lymphoma (PCBCL) lesions according to subtype and anatomic location.
| Dermoscopic feature | All PCBCL (n=58) | PCBCL subtype | Anatomic location | |||||
|---|---|---|---|---|---|---|---|---|
| PCMZL (n=31) | PCFCL (n=14) | Indolent PCBCL (n=10) | PCDLBCL (n=3) | Head and neck (n=8) | Trunk (n=32) | Extremities (n=18) | ||
| Blood vessels | 45 (77.6%) | 24 (77.4%) | 10 (71.4%) | 9 (90%) | 2 (66.7%) | 8 (100.0%) | 25 (78.1%) | 12 (66.7%) |
| Serpentine vessels | 39 (67.2%) | 21 (67.7%) | 8 (57.1%) | 9 (90.0%) | 1 (33.3%) | 7 (87.5%) | 21 (65.6%) | 11 (61.1%) |
| Arborizing vessels | 4 (6.9%) | 1 (3.2%) | 2 (14.3%) | 0 (0.0%) | 1 (33.3%) | 1 (12.5%) | 3 (9.4%) | 0 (0.0%) |
| Dotted vessels | 1 (1.7%) | 1 (3.2%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (5.6%) |
| Polymorphous vessels | 1 (1.7%) | 1 (3.2%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (3.1%) | 0 (0.0%) |
| Scale | 6 (10.3%) | 2 (6.5%) | 3 (21.4%) | 0 (0.0%) | 1 (33.3%) | 0 (0.0%) | 4 (12.5%) | 2 (11.1%) |
| Ulceration | 4 (6.9%) | 4 (12.9%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 2 (6.3%) | 2 (11.1%) |
| Salmon colored background/area | 46 (79.3%) | 25 (80.6%) | 11 (78.6%) | 7 (70.0%) | 3 (100.0%) | 6 (75%) | 27 (84.4%) | 13 (72.2%) |
PCBCL = primary cutaneous B-cell lymphoma; PCMZL = primary cutaneous marginal zone lymphoma; PCFCL = primary cutaneous follicle center lymphoma; PCDLBCL = primary cutaneous diffuse large B-cell lymphoma