How do you decide when to biopsy a patient with overlapping signs of female-pattern hair loss and possible early central centrifugal cicatricial alopecia?

Biopsy is indicated when the diagnosis is uncertain, particularly when distinguishing between female-pattern hair loss (FPHL) and central centrifugal cicatricial alopecia (CCCA), as these conditions can have overlapping clinical presentations. Our T-shirt should also represent fibrosing alopecia and...