[Umbilical pilonidal sinus].

In this case report we describe a case of umbilical pilonidal sinus in a 45-year-old male. He was referred to hospital following umbilical pain and bloody discharge from the umbilicus. Abdominal ultrasound scan showed a 2 × 1 × 0.5 cm high-density structure. The clinical diagnosis was urachus cyst. The patient was operated and the cyst removed. The pathological examination reached the diagnosis umbilical pilonidal sinus.