Image showing preoperative view of pilonidal sinus with hair clearly seen pointed towards and entering the sinus | Rao, J., Deora, H., & Mandia, R. (2015). A Retrospective Study of 40 Cases of Pilonidal Sinus with Excision of Tract and Z-plasty as Treatment of Choice for Both Primary and Recurrent Cases. The Indian Journal of Surgery, 77(Suppl 2), 691–693. https://doi.org/10.1007/s12262-013-0983-4

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