Differential diagnosis of scarring causes / cicatricial causes of baldness

​Differential diagnosis of scarring causes/ cicatricial causes of baldness are : 
-excessive ionizing radiation 
-scleroderma 
-discoid lupus erythematosus 
-chemical / physical trauma 
-herpes zoster / shingles 
-bacterial infection 
-fungal infection 
-lichen planopilaris