Late recurrence in surgically managed pediatric atypical mycobacterial lymphadenitis: A case report and review of the literature.

Objective: The purpose of this study is to identify existing literature on recurrent atypical mycobacterial cervicofacial lymphadenitis to augment our understanding of a unique patient who presented to our tertiary-care center 5-years posttreatment with recurrence following curettage. Data Sources: OVID Medline, Scopus, and Web of Science. Methods: A literature search was conducted yielding 49 original articles which were screened twice by two independent reviewers resulting in 14 studies meeting inclusion criteria for data extraction using Covidence software. Two independent reviewers extracted data on recurrence of atypical mycobacterial cervicofacial lymphadenitis and consensus was reached on data points from all included studies. Results: This study illuminated the paucity of recurrence reporting in the literature regarding atypical mycobacterial lymphadenitis. Sixteen studies identified in our review included discussions on recurrence with few elaborating beyond the rate of recurrence to describe their management. Fourteen out of sixteen studies provided recurrence rates for their cohort, 11 out of 14 specified the initial treatment modality, and only five out of eight studies that described initial treatment with surgery differentiated recurrence rates between complete and incomplete excision. The mean length of follow-up in the included studies was 20 months. There was one previously reported case of late recurrence at 5-years. Conclusions: We identified few reports that discussed the management of recurrence of atypical mycobacterial cervicofacial lymphadenitis. There was minimal data on recurrence rates between surgical treatment modalities. The case discussed in our study showcases that treatment with curettage has the potential to present with late recurrence.