| CRDD | Cutaneous Rosai-Dorfman disease |
| RDD | Rosai-Dorfman disease |
| HFUS | High-frequency ultrasound |
| RCM | reflectance confocal microscopy |
| CDFI | Color Doppler flow imaging |
| SLEB | Subepidermal low-echogenicity band |
| CRDD | Cutaneous Rosai-Dorfman disease |
| RDD | Rosai-Dorfman disease |
| HFUS | High-frequency ultrasound |
| RCM | reflectance confocal microscopy |
| CDFI | Color Doppler flow imaging |
| SLEB | Subepidermal low-echogenicity band |