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 Indian J Med Microbiol  
 

Figure 11 (A and B): Patient presenting at 20 weeks of gestation with sudden abdominal pain. (A) USG image shows a well-defined GS with fetus and placenta, but the uterus (not shown) was empty and location of this ectopic sac was uncertain. (B) Coronal SSh T2-weighted MRI image shows the GS located cranial to the uterus (*). Wall is isointense to myometrium, with T2 dark hemorrhagic areas (thin arrow). It is connected to the ovary by a thick pedicle. The ovary itself is T2 dark and enlarged, suggesting hemorrhagic infarction (thick arrow). Diagnosis of rudimentary horn pregnancy with torsion was made. A rudimentary horn pregnancy with torsion of the gravid horn and ovary was found at surgery

Figure 11 (A and B): Patient presenting at 20 weeks of gestation with sudden abdominal pain. (A) USG image shows a well-defined GS with fetus and placenta, but the uterus (not shown) was empty and location of this ectopic sac was uncertain. (B) Coronal SSh 
T2-weighted MRI image shows the GS located cranial to the uterus (*). Wall is isointense to myometrium, with T2 dark hemorrhagic areas (thin arrow). It is connected to the ovary by a thick pedicle. The ovary itself is T2 dark and enlarged, suggesting hemorrhagic infarction (thick arrow). Diagnosis of rudimentary horn pregnancy with torsion was made. A rudimentary horn pregnancy with torsion of the gravid horn and ovary was found at surgery