Chikkannaiah Panduranga, Mahadevan Anita, Gosavi Manasi, Kangle Ranjit, Shankar S K
Department of Pathology, KLE University's Jawaharlal Nehru Medical College, Belgaum, Karnataka 590010, India.
Department of Neuropathology, National Institute of Mental Health and Neurosciences, Hosur Road, Bangalore, India.
Pathol Res Pract. 2014 Jul;210(7):444-9. doi: 10.1016/j.prp.2014.01.017. Epub 2014 Feb 28.
Sirenomelia, a developmental defect involving the caudal region of the body, is associated with several internal visceral anomalies. We report a detailed spectrum of anomalies in an autopsy study of four fetuses with sirenomelia (gestational ages - 20, 21, 22.4, and 22.5 weeks). Three of the fetuses had single umbilical artery, with genitourinary and gastrointestinal anomalies. Central nervous system anomalies were evident in two of the fetuses, with alobar holoprosencephaly in one and lumbar meningomyelocele in another. The most common gastrointestinal anomaly was blind ended gut (imperforate anus), while esophageal atresia and omphalocele were noted in one case each. Renal hypoplasia was seen in two fetuses, renal agenesis in one and cystic renal dysplasia was noted in one case. Literature regarding pathogenesis of this condition is briefly discussed.
