a

b

c

d

Leiomyomas. (a) Spot radiograph obtained during the early filling stage shows a well-defined filling defect (arrow) in the fundus. (b) On a spot radiograph obtained with the uterus more distended with contrast material, the fibroid (arrow) is less apparent. (c) Spot radiograph obtained in a different patient reveals a large leiomyoma distorting the endometrial cavity as it drapes over a mass in the left myometrium. (d) Sonohysterogram obtained in a third patient shows a retroverted uterus with fluid outlining a submucosal mass in the fundus. The balloon of an HSG catheter (arrow) is seen in the lower uterine segment.

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