[Inflammatory pseudotumor of the urachus. A case]

Area of Science:

• Pediatric Surgery
• Uropathology
• Surgical Oncology

Background:

• Mid-hypogastric tumors in children can present as painful, prominent, and solid masses.
• Differential diagnosis for such masses includes soft tissue sarcomas and urachal anomalies.

Observation:

• A 9-year-old boy presented with a clinically isolated, mid-hypogastric tumor.
• The tumor was initially suspected to be a sarcoma due to its physical characteristics.

Findings:

• Surgical en bloc resection of the tumor, including the attached vesical cupula, was performed.
• Histopathological examination confirmed the tumor was purely inflammatory, originating from urachal remnants.
• The diagnosis of inflammatory urachal remnants must be considered in cases of suprapubic tumors.

Implications:

• This case underscores the importance of considering urachal remnants in the differential diagnosis of suprapubic masses in pediatric patients.
• Given the potential for malignant transformation of urachal cysts, surgical resection is recommended for suspected urachal anomalies.
• Early and accurate diagnosis can prevent misclassification and ensure appropriate management, avoiding unnecessary aggressive treatments like sarcoma therapy.