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. 2022 Oct 26;32(4):582–590. doi: 10.1055/s-0042-1750174

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Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 1 — Case 1. Incidentally detected nodular pseudoangiomatous stromal hyperplasia in a patient with mastalgia. Craniocaudal and mediolateral oblique images of left breast ( A, B ) show an oval equal density lesion with circumscribed margins in upper outer quadrant, showing no significant enhancement on recombined postcontrast images ( C, D ). On ultrasonography, the lesion appears hypoechoic with indistinct margins and cystic spaces ( E ), shows mild vascularity ( F ), and is soft on elastography ( G ). On magnetic resonance imaging, the lesion shows intermediate signal intensity on axial T1-weighted ( H ) and T2-weighted inversion recovery ( I ) images with no diffusion restriction on diffusion-weighted image and apparent diffusion coefficient map (arrow in J, K ). On early and delayed postcontrast subtracted images, minimal enhancement is observed (arrowhead in L, M ). ( N ) Photomicrograph (40× magnification; hematoxylin and eosin stain) showing collagenized sparsely cellular stroma with slit-like spaces (arrow) rimmed by spindled myofibroblasts (arrowhead).