How often do you pursue malignant transformation screening In patients with lymphomatoid papulosis or pityriasis lichenoides?

In the case of patients with lymphomatoid papulosis (LyP) or pityriasis lichenoides, regular follow-up and monitoring for signs of malignant transformation is important, given the potential (though generally low) risk of progression to lymphoma, especially cutaneous T-cell lymphoma.

For LyP, follow-ups are typically recommended every 6 to 12 months, depending on the clinical presentation and the subtype. Monitoring includes a thorough skin examination and patient history to detect any new sympto...