In this study, two cases have been reported of idiopathic plantar hidradenitis, an uncommon dermatological pathology with a spontaneous favorable outcome.
Observations: Two children aged 12 and 14 years presented with a painful papulo-nodular plantar rash with major functional impairment. The diagnosis of idiopathic plantar hidradenitis was considered, and then confirmed in one case by plantar biopsy. Non-steroidal antiinflammatory drugs, associated with paracetamol in one case were administered. The symptoms disappeared spontaneously within a few days in both cases, without any recurrence.
Conclusion: A knowledge of the symptoms connected with plantar hidradenitis in the child allows a rapid diagnosis to be made without hospitalization or further medical examination. Analgesic treatment and rest seem to be the only useful approaches. Biopsy to investigate eccrine gland infiltration by neutrophils can only be proposed in the case of an abnormally prolonged duration or an atypical presentation of this pathology.