Background: Panniculitis, or inflammation of adipose tissue, includes a heterogeneous group of disorders with similar morphologic presentations. Currently, panniculitides are classified based on histopathologic findings only.
Objective: In this retrospective study of 207 cases of biopsy-proven panniculitis over 20 years at Mayo Clinic, we aimed to propose a new classification that integrates the clinical morphologic features with the histopathology of panniculitis.