STEPW submucosal fibroid classification system

	Size (cm)	Topography	Extension of the base	Penetration	Lateral wall	Total
0	<2	Low	<1/3	0	+1
1	>2 to 5	Middle	>1/3 to 2/3	<50%
2	>5	Upper	>2/3	>50%
Score	+	+	+	+	+

Score	Group	Complexity and therapeutic options
0 to 4	I	Low-complexity hysteroscopic myomectomy.
5 to 6	II	High-complexity hysteroscopic myomectomy. Consider GnRH use? Consider two-step hysteroscopic myomectomy.
7 to 9	III	Consider alternatives to the hysteroscopic technique.

STEPW: size, topography, extension, penetration, wall; GnRH: gonadotropin-releasing hormone.

Reproduced from: Lasmar RB, Xinmei Z, Indman PD, et al. Feasibility of a new system of classification of submucous myomas: a multicenter study. Fertil Steril 2011; 95:2073. Table used with the permission of Elsevier Inc. All rights reserved.

Graphic 105588 Version 2.0

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STEPW submucosal fibroid classification system