Post-implantation erythema in 3 patients and a review of reticular telangiectatic erythema.

BACKGROUND: The appearance of erythematous, blanchable patches or plaques overlying an implant suggests possible reticular telangiectatic erythema (RTE). RTE is a benign reactive cutaneous manifestation that can present following the implantation of a cardiac pacemaker, defibrillator or intrathecal infusion pump in an otherwise asymptomatic, non-infectious patient. OBJECTIVE: To demonstrate the variety in clinical presentation of patients presenting with RTE or similar patch test-negative post-implantation erythema. PATIENTS/MATERIALS/METHODS: After institutional board approval had been obtained, patient information was obtained from electronic medical record files, which included surgical reports, pathology reports, and notes from outpatient encounters. RESULTS: We report post-implantation erythema following insertion of an elbow prosthesis, a knee prosthesis, and a spinal cord stimulator, which have not previously been cited as aetiologies of RTE. CONCLUSION: Owing to the delayed onset and variable recovery, RTE remains a diagnostic challenge. RTE should be included in the differential diagnosis of any patient presenting with erythema over the site of a previously implanted device.