DOI: https://dx.doi.org/10.18203/2349-2902.isj20220954
Published: 2022-03-28

Fetus in fetu: a rare entity

Jaini B. Modi, Shahaji Deshmukh, Saket Jha, Apoorva Kulkarni

Abstract


Fetus in fetu is a rare congenital anomaly in which a malformed fetus grows within the body of its twin. It is detected as an abdominal mass in infancy. It is a heterophagus parasite of a diamniotic, monozygotic twin. It should be differentiated from teratoma which has no axial arrangement and has got malignant potential. Although fetus in fetu is a rare condition, diagnosis using imaging can be made before surgery. It should be considered as a differential diagnosis for lump abdomen in infants. Complete excision is the treatment of choice. We present a case of a 9 years old female with fetus in fetu who was successfully managed by surgical excision.


Keywords


Fetus in fetu, Teratoma, Heteropagus twins

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References


Sutthiwan P, Sutthiwan I, Tree-trakan T. Fetus in fetu. J Ped Surg. 1983;18(3):290-2.

Du Plessis JP, Winship WS, Kirstein JD. Fetus in fetu and teratoma. A case report and review. S Afr Med J. 1974;48(50):2119.

Hopkins KL, Dickson PK, Ball TI, Ricketts RR, O’Shea PA, Abramowsky CR. Fetus-in-fetu with malignant recurrence. J Ped Surg. 1997;32(10):1476-9.

Arlikar JD, Mane SB, Dhende NP, Sanghavi Y, Valand AG, Butale PR. Fetus in fetu: two case reports and review of literature. J Ped Surg. 2009;26(3):289-92.

Lewis RH. Fetus in fetu and retroperitoneal teratoma. Arch Dis Child. 1960;36:220.

Thakral CL, Maji DC, Sajwani MJ. Fetus-in-fetu: a case report and review of the literature. J Ped Surg. 1998;33(9):1432-4.

Patankar T, Fatterpekar GM, Prasad S, Maniyar A, Mukherji SK. Fetus in fetu: CT appearance—report of two cases. Radiology. 2000;214(3):735-7.

Federici S, Ceccarelli PL, Ferrari M, Galli G, Zanetti G, Domini R. Fetus in fetu: report of three cases and review of the literature. Ped Int Surg. 1991;6:60-5.

Tada S, Yasukochi H, Otaki C, Fukuta A, Takanashi R. Fetus in fetu. Br J Radiol. 1974;47(554):146-8.

Luzzatto C, Talenti E, Tregnaghi A, Fabris S, Scapinello A, Guglielmi M. Double fetus in fetu: diagnostic imaging. Pediatr Radiol. 1994;24(8):602-3.