PMC9983717_01
Infected pilonidal cyst. A)Natal cleft with small opening. B)Using high frequency linear probe with a layer of gel to scan the natal cleft area. C)Ultrasonographic sagittal view showing the pilonidal cyst and hair within (arrow) and the single pit (arrow head). No craniocaudal extension. D)Post excision.
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The patient underwent localized excision (Figure 1).
PMC9983717_02
Complex pilonidal Sinus. A) Multiple midline pits and two secondary opening cranially. B)Post modified Lord Millar excision. C) Ultrasonographic view at the midline of natal cleft showing multiple pits (arrowheads) and the pilonidal sinus with hair within (arrow). No craniocaudal extension. D)Ultrasonographic view at the upper part of the natal cleft showing the cranial extension of the pilonidal sinus towards the secondary openings.
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A modified Lord Millar excision was done (Figure 2).
PMC9983717_03
Recurrent pilonidal sinus with abscess. A)Site of previous operation, lateral to the natal cleft (arrow). B) Sonographic appearance of pilonidal abscess (star) with posterior acoustic enhancement (arrow). C)Incision and drainage. Central pit observed (arrowhead).
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An incision and drainage were done along with the removal of the single pit (Figure 3).