Merck Manual

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Tortoise with retained eggs, radiograph
retained_eggs_dystocia_tortoise_radiograph_high
Tortoise with retained eggs, radiograph

    Radiograph of a tortoise with two retained eggs, one abnormally large. In this type of case, medical therapy and induction using oxytocin is contraindicated, and surgical removal is required.

Courtesy of Dr. Stephen Divers.