[A new case of reticular hyperplasia connected with volatile oils].

An additional case of "reticular hyperplasia" is described. The clinical picture is trimorphic with grouped nodules, spinulosismus-like and parapsoriasiform lesions. Histologically there are dense lymphoreticular, partly eosinophilic infiltrates with leucocytoclastic cell aggregates, which, however, do not resemble mycosis fungoides nor a reticulosis. The causative agent was most likely the external use of remedy for an amputation stump containing ethereal oils, which had been used over decades. Positive provocation tests confirmed the diagnosis.