Endometrial cyst and its changes during pregnancy – a narrativereview of the literature

Jakub Młodawski, Marta Młodawska, Mariusz Malmur, Justyna Płusajska, Grzegorz Świercz, Marek Sikorski
In: Medical Studies · 2021 · vol. 37(3) , pp. 226–231 · doi:10.5114/ms.2021.109511 · W3201884319
review OA: gold CC0
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This review discusses the benign decidualization of ovarian endometriomas during pregnancy, which mimics malignancy on ultrasound, and explores diagnostic approaches to potentially avoid unnecessary surgeries.

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Abstract

Endometrioma of the ovary (chocolate cyst) is one of the most common tumours of the appendages diagnosed in pregnant patients. In approximately 12% of pregnancies with diagnosed ovarian endometriomas, the process of decidualization, i.e. tumour secretory transformation, occurs under the influence of high progesterone concentrations. Decidualized endometrioma is a benign lesion, but its ultrasound appearance imitates a malignancy; therefore, knowledge of the process and diagnostic possibilities is extremely important for the clinician, and it may limit the number of surgical interventions in pregnant patients. This review discusses the decidualization of endometriosis as well as the ultrasound and biochemical diagnostics of this entity.

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Condition tags

endometriosisendometrioma

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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last seen: 2026-06-10T17:14:06.276822+00:00
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