A Peculiar Accessory Scrotum With a Human Tail-Like Structure: A Case Report

Area of Science:

• Embryology
• Pediatric Surgery
• Congenital Anomalies

Background:

• Accessory scrotum is a rare congenital anomaly typically presenting at birth.
• It is often associated with a lipoma and usually located in the perineum.

Purpose of the Study:

• To report a unique case of accessory scrotum with a human tail-like structure.
• To explore the potential embryological mechanisms underlying this rare anomaly.

Main Methods:

• Case report of a male infant with a congenital anomaly.
• Surgical resection of the lesion.
• Histopathological examination of the resected tissue.
• Preoperative whole-body computed tomography (CT) for anomaly screening.

Main Results:

• A 7-cm-long accessory scrotum with a human tail-like structure was identified adjacent to the anus.
• The structure contained connective tissue, nerve bundles, articular cartilage, and marrow tissues.
• The infant had no other anomalies detected by CT and showed normal development post-resection.

Conclusions:

• This case represents a unique presentation of accessory scrotum with features resembling a human tail.
• The findings suggest a potential shared embryological origin involving ectopic migration of pluripotent cells from the tail bud.
• This report provides novel insights into the development of congenital anomalies of the genitoperineal region.