A review of inflammatory subcutaneous disease revealed that lymphoid follicles are observed frequently in lupus panniculitis. They are found rarely in other lymphocytic inflammatory diseases involving the panniculus, such as morphea, erythema nodosum, and erythema induratum. The lymphoid follicle may be an indication of immunoreactive and connective tissue disease, and cases should be evaluated with this in mind.
(Arch Dermatol 115:442-443, 1979)
Harris RB, Duncan SC, Ecker RI, Winkelmann RK. Lymphoid Follicles in Subcutaneous Inflammatory Disease. Arch Dermatol. 1979;115(4):442-443. doi:10.1001/archderm.1979.04010040020006