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 Indian J Med Microbiol  
 

Figure 4: Case 2: Transabdominal USG shows a monochorionic, monoamniotic twin gestation with a normal fetus (arrow), an abnormal fetus [seen as an isoechoic mass without any internal organs (arrowheads)], and an echogenic structure casting a distal acoustic shadow, possibly representing the spine of the abnormal fetus (curved arrow)

Figure 4: Case 2: Transabdominal USG shows a monochorionic, monoamniotic twin gestation with a normal fetus (arrow), an abnormal fetus [seen as an isoechoic mass without any internal organs (arrowheads)], and an echogenic structure casting a distal acoustic shadow, possibly representing the spine of the abnormal fetus (curved arrow)