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 the 5 L's ddx 
  
| • | AKA Spiegler-Fendt sarcoid; cutaneous lymphoid hyperplasia (CLH), cutaneous B-cell pseudolymphoma |  
 | • | an infiltrative benign lymphocytic condition (B-cells) of the skin, especially of the head and neck |  
 | • | mnemonic:  B-cells, Borrelia borgderferi |  
   
ddx: 
| • | primary lymphoma (absence of follicle formation, presence of atypia) |  
 | • | Jessner’s (lesions characteristically wax and wane; absence of follicle formation; a T-cell proliferation) |  
 | • | tumid LE (evidence of basal-cell liquefaction degeneration) |  
 | • | angiolymphoid hyperplasia with eosinophilia, metastatic carcinoma |  
  
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