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Lumbosacral parasitic rachipagus twin
Rajiv Chadha1, Prabha Lal, Dharmendra Singh
1Department of Pediatric Surgery, Lady Hardinge Medical College and associated Kalawati Saran and SK Hospitals, New Delhi 110001, India. rajiv_chadha_01@yahoo.com
Journal of Pediatric Surgery
|January 18, 2006
Summary
This report details a rare case of parasitic rachipagus twinning in a newborn. Surgical removal of the parasitic mass was successful, offering insights into this congenital anomaly.
Area of Science:
- Medical Science
- Genetics
- Developmental Biology
Background:
- Parasitic twinning is a rare congenital anomaly where one twin fails to develop fully.
- Parasitic rachipagus, a specific type, involves a twin attached along the spine.
Observation:
- A newborn female presented with a lumbosacral parasitic mass with rudimentary digits and features resembling scrotal skin and an anal dimple.
- Imaging revealed skeletal structures within the parasite and sacral spina bifida in the autosite.
Findings:
- The parasitic mass was confirmed to be an aborted parasitic twin (rachipagus).
- The autosite exhibited sacral spina bifida, a common co-occurrence.
- Surgical excision of the parasitic twin was successfully performed.
Implications:
- This case highlights the importance of early diagnosis and surgical intervention for parasitic twin anomalies.
- Understanding parasitic rachipagus contributes to the broader knowledge of conjoined twin development and management.
- Further research into the genetic and developmental factors underlying parasitic twinning is warranted.

