Primary cutaneous lymphoma: two-decade comparison in a population of 263 cases from a Swiss tertiary referral centre.

Background: Epidemiological data on primary cutaneous lymphomas (PCLs) are rare and have not previously been investigated in Switzerland.

Objective: To analyse variations in demographics, the pattern of subtypes and staging during the two 10-year intervals, 1990-1999 and 2000-2009.

Methods: This was a descriptive study of 263 patients with PCL based on a retrospective review and reassessment according to the World Health Organization/European Organization for Research and Treatment of Cancer classification.