Persistent Umbilical Discharge from an Omphalomesenteric Duct Cyst Containing Gastric Mucosa

Table 1

Differential diagnosis of umbilical discharge.

Cause	Age at presentation	Diagnostic features
Omphalitis	Neonatal	Purulent discharge; Periumbilical skin inflammation
Umbilical granuloma	Neonatal	Homogenous granuloma with discharge
Umbilical hernia ulceration	Neonatal	Skin breakdown and purulent discharge with or without feculent material
Patent urachus, urachal cyst	Any age	Urine in discharge (in patent urachus), presence of second lumen in umbilical cord, purulent discharge, and mass
Patent omphalomesenteric duct remnants	Neonatal to early childhood	Serosanguinous, feculent, or bilous discharge, presence of second lumen in umbilical cord