• Ghulam Mustafa
  • Ghulam Akber
  • Junaid Khan Lodhi
  • Muhammad Mutahir
  • Asim Malik


A pilonidal sinus is a blind-end tract lined with granulation tissue, which leads to a cystic cavity lined with epithelial tissue. As the name suggests, these hair containing abscesses are usually found in the sacro-coccygeal region. However, they may also occasionally occur in the axilla, groin, inter-digital web, umbilicus, nose, inter-mammary areas, supra-pubic area, clitoris, prepuce, penis, occiput, and on the feet. Sinus is caused by the friction of the skin at the base of the spine, leading to the embedding of the hair beneath the surface. The hair forms small cavities or pits, which are in truth, enlarged hair follicles, which go on to become sinuses. Bacteria and debris enter this sterile area, producing local inflammation and formation of pus-filled abscesses. In chronic condition, the sinus becomes an open cavity, constantly draining small amounts of fluid. In this case report we present a case of umbilical pilonidal sinus in a young boy.Keywords: Pilonidal sinus, umbilicus, sinus, omphalectomy



Hodges RM. Pilonidal sinus. Boston Med Surg J 1880;103:485–6.

Williams ES, Patey D. Pilonidal Sinus of the umbilicus. Lancet. 1956;271:281–2.

Goodall P. The etiology and treatment of the plonidal sinus. Dig Surg 1995;12:117–20.

Coşkun A, Buluş H, Akıncı OF, Özgönü A. Etiological factors in umbilical pilonidal sinus. Indian J Surg 2011;73:54–7.

Sadeghi-Nejad H. Rains AJ. Plonidal sinus of the umbilicus. Lancet 1958;271:567–70.

McClenathan JM. Umbilical pilonidal sinus. Can J Surg 2000;43:225–7.

Kareem T. Outcomes of conservative treatment of 134 cases of umbilical pilonidal sinus. World J Surg. 2013;37:313–7.

Sarmast MH, Javaherizadeh H, Shahvari MR. Non-surgical treatment of umblical pilonidal sins in adolescent and adult cases. Pol Przegl Chir. 2011;83:652–3

Abdulwahab BA, Harste K. Umbilical pilonidal sinus. Ugeskr Laeger. 2010;172(41):2848–9.

Schoelch SB, Barrett TL. Umbilical pilonidal sinus. Cutis. 1998;62(2):83–4