Table 3 Decidualization of endometriomas during pregnancy.

Cases	Step 1		Step 2		Step 3		Step 4		Step 5		Step 6
	Pre-pregnancy		6–7 weeks		11–13 weeks		23–25 weeks		35–37 weeks		Post-partum
	VP	Mean diameter	VP	Mean diameter	VP	Mean diameter	VP	Mean diameter	VP	Mean diameter	VP	Mean diameter
Case 1	−	27	−	32	+	30	−	27	−	21	−	19
Case 2	−	42	−	31	+	31	−	38	−	16	−	20
Case 3	−	20	−	20	+	25					−	12
Case 4	−	16	−	16	+	12	−	13	−	26	−	8
Case 5 left	−	32	−	37	+	50	+	44		Hidden	−	22
Case 6 right	−	18	−	19	+	42	+	44		Hidden	−	14
Case 6 left	−	22	−	35	+	58	+	47		Hidden	−	24
Median diameter	22 [18–32]		31 [19–35]		31 [25–50]		41 [24–45]		21 [16–26]		19 [12–22]

Only the seven cases who showed typical signs of decidualization in at least on of the assessments are included in the table.
VP vascularized papillary projection. Present (+) or absent (−).
Hidden means that the lesion could not be seen because of the pregnancy. Empty boxes mean that the woman did the not perform the assessment.
Mean diameter of the endometrioma is reported (in mm). Median diameter is presented with the interquartile range.

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