Answers are grounded in this paper and cite their sources.
A case of fetal ovarian cyst associated with transient ascites is presented. The cyst showed serial changes from a fluid-debris interface to an anechoic structure. The changing ultrasonographic appearance of the cyst, disappearance of ascites and postnatal spontaneous resolution, suggests in utero torsion of the cyst.
No takes yet. Share an insight, caveat, or question.
Degani et al. (2009) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: