Scimago Lab
powered by Scopus
eISSN: 1941-5923
call: +1.631.629.4328
Mon-Fri 10 am - 2 pm EST


Medical Science Monitor Basic Research


Umbilical Pilonidal Sinus, an Underestimated and Little-Known Clinical Entity: Report of Two Cases

Challenging differential diagnosis, Unusual setting of medical care, Patient complains / malpractice, Rare disease

Mehmet Kaplan, Elif Tugce Kaplan, Tugba Kaplan, Fatma Cigdem Kaplan

Turkey Department of General Surgery, Bahcesehir University (BAU), School of Medicine, Istanbul, Turkey

Am J Case Rep 2017; 18:267-270

DOI: 10.12659/AJCR.903016

Available online:

Published: 2017-03-15


BACKGROUND: Umbilical pilonidal sinus (UPS) is a rare disease of young, hirsute, dark men with deep navels and poor personal hygiene. UPS could easily be misdiagnosed and mistreated due to its rarity and lack of awareness of the condition by physicians. However, the diagnosis is easy to establish with physical examination and a detailed history. Although it is being diagnosed and reported more frequently, there is still no consensus regarding best treatment options.
CASE REPORT: In this report, we present two cases of UPS, one in a man and one in a woman, who had typical symptoms of pain, swelling, and intermittent malodorous discharge from the umbilicus. They had small sinus openings with hair protruding deep in the navel. Because these two patients had previous histories of failed conservative treatments, an umbilicus preserving surgery was performed for both cases. Wounds were healed in 2–3 weeks with acceptable cosmetic results. During a more than 2 year follow-up period, there were no signs of recurrence.
CONCLUSIONS: In a patient presenting with a history of intermittent discharge, itching, pain, or bleeding from the umbilicus and the presence of granulation tissue with or without protruding hair and periumbilical dermatitis, the diagnosis should consider UPS, even in female patients. Treatment generally depends on the severity of the disease, ranging from good personal hygiene to surgical excision of umbilical complex. The treatment of choice for chronic intermittent cases is surgical removal of the affected portion; paying special attention to cosmetic appearance.

Keywords: Pilonidal Sinus, Umbilicus, Urachal Cyst