case_images: PMC10904878_01
case_images: Preoperative view (posterior).
case_images: cureus-0016-00000053259-i01.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i01.jpg
case_images: FIG1
case_images: The swelling was oval with firm consistency and restricted mobility (Figures 1, 2).
case_images: Preoperative view (lateral).
case_images: cureus-0016-00000053259-i02.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i02.jpg
case_images: FIG2
case_images: The swelling was oval with firm consistency and restricted mobility (Figures 1, 2).
case_images: Coronal T1 view showing the lesion in the intermuscular plane which appears as a low signal on T1-weighted imaging and shows homogenous suppression. The fat plane is maintained with the adjacent muscles.
case_images: cureus-0016-00000053259-i03.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i03.jpg
case_images: FIG3
case_images: Fat-saturated view showing a multiloculated high-signal intensity lesion in the intermuscular plane between the soleus and lateral head of the gastrocnemius muscles. Multiple thin internal septations are seen predominantly in the superior aspect.
case_images: cureus-0016-00000053259-i04.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i04.jpg
case_images: FIG4
case_images: Excision of the swelling.
case_images: cureus-0016-00000053259-i05.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i05.jpg
case_images: FIG5
case_images: Complete excision was achieved (Figures 5-7), and a negative suction drain was placed.
case_images: Lesion showing cystic cavities filled with lymph.
case_images: cureus-0016-00000053259-i06.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i06.jpg
case_images: FIG6
case_images: Complete excision was achieved (Figures 5-7), and a negative suction drain was placed.
case_images: Excised mass measuring 12 x 10 cm.
case_images: cureus-0016-00000053259-i07.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i07.jpg
case_images: FIG7
case_images: Complete excision was achieved (Figures 5-7), and a negative suction drain was placed.
case_images: Postoperative healing after 10 days.
case_images: cureus-0016-00000053259-i08.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i08.jpg
case_images: FIG8
case_images: Lymphocystic spaces lined by endothelial cells and filled with eosinophilic material.
case_images: cureus-0016-00000053259-i09.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i09.jpg
case_images: FIG9
case_images: Thin-walled dilated lymphocystic channel lined with flattened endothelial cells and lumen consisting of eosinophilic proteinaceous fluid.
case_images: cureus-0016-00000053259-i10.jpg
case_images: PMC10904878_01_cureus-0016-00000053259-i10.jpg
case_images: FIG10