Abstract

Background: Human tails are rare congenital anomalies protruding from midline of the lumbosacral region covered by skin. Human tails are classified as true tail and pseudo tail. True tails, also known as vestigial tails are caudal, midline protrusion capable of spontaneous or reflex motion, consisting of skin covering with a combination of striated muscle, adipose and connective tissue, normal blood vessels and nerves.

Case presentation: A 47 days old female infant born from 28 years old prime parous women present with cutaneous appendage arising from the sacrococcygeal region, in the midline, above the intergluteal cleft. The tail-like structure was 9 cm in length, with a diameter between 3 cm and 2 cm in all its length, cylindrical, and pointy towards the end. The structure was soft, covered in skin, it shows spontaneous movement. The MRI report shows S1- S2 level spinal bifida.

Conclusion: This is a rare case of vestigial human tail with spinal Bifida on 47 days old female infant born from prime parous mother through spontaneous vaginal delivery diagnosed by histopathologic examination.

Keywords: Human tail; Vestigial tail; Pseudo-tail; Spinal bifida