J Minim Invasive Surg.  2021 Dec;24(4):223-226. 10.7602/jmis.2021.24.4.223.

Enlarged lymph nodes diagnosed with Langerhans cell histiocytosis found in a direct inguinal hernia: a case report

Affiliations
  • 1Department of Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
  • 2Department of Pathology, Soonchunhyang University Cheonan Hospital, Cheonan, Korea

Abstract

It is unusual that an unexpected mass is encountered within a hernia sac. This report describes a patient diagnosed with Langerhans cell histiocytosis (LCH) after surgery for an inguinal hernia. A 64-year-old male patient presented with inguinal mass over a 1-year period. Direct inguinal hernias were found in both sides, and enlarged lymph nodes were found in both hernia sacs. Laparoscopic totally extraperitoneal repair was done, and one enlarged lymph node within inguinal hernia sac was excised for diagnostic purposes. Microscopic findings showed the distinctive cytologic features of Langerhans cells and immunohisto chemical staining are positive for CD1a and S-100. LCH is a rare disorder, and the involvement of the lymph nodes with no other sites of disease is uncommon. To the best of our knowledge, this is the first report of LCH within an inguinal hernia sac. Multidisciplinary approach should be considered to provide better detection and treatment.

Keyword

Langerhans cells; Histiocytosis; Inguinal hernia; Lymph nodes
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