Case presentation :
An 18-year-old patient consulted in dermatology for an umbilical nodule
that had been evolving for 2 months. Physical examination found an
umbilical pyogenic granuloma (Figure 1) with a discrete oozing and pus
discharge after manual compression. An involution abnormality of the
urachus duct was suspected and an abdominal ultrasound confirmed the
diagnosis by showing an infected urachal cyst. The patient was treated
with antibiotics and referred for a surgical removal of the cyst.