Endometriosis of the soleus and gastrocnemius muscles Omero Benedicto Poli-Neto, M.D., Júlio César Rosa-e-Silva, M.D., Hermes Freitas Barbosa, M.D., Francisco José Candido-dos-Reis, M.D., Antonio Alberto Nogueira, M.D.  Fertility and Sterility  Volume 91, Issue 4, Pages 1294.e13-1294.e15 (April 2009) DOI: 10.1016/j.fertnstert.2008.12.014 Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions

Figure 1 (A) Ultrasound image revealing a heterogeneous predominantly hypoechoic mass of imprecise limits (arrows) measuring 2.6 × 0.9 × 1.3 cm; (B) Fast spin-echo T1-weighted axial magnetic resonance image (MRI) shows that the mass has a low signal intensity and is almost as isointense as muscle; (C) Fast spin-echo T2-weighted axial MRI with fat saturation shows that the gastrocnemius (medial head) and soleus mass (arrows) have a high signal intensity; (D) Fast spin-echo T1-weighted coronal MRI precontrast mass (arrows); (E) Fast spin-echo T1-weighted coronal MR image postcontrast mass (arrows); (F) Endometriotic nodule composed of clusters of endometrial epithelial cells in a dense fibroadipose tissue, lymphocytes, and plasmocytes (hematoxylin-eosin). Fertility and Sterility 2009 91, 1294.e13-1294.e15DOI: (10.1016/j.fertnstert.2008.12.014) Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions