case_images: PMC8581642_01
case_images: Asymmetrical dystonic posturing on both sides (left more than right) with significant swelling and redness in the dorsum of the left foot.
case_images: fneur-12-735895-g0001.jpg
case_images: PMC8581642_01_fneur-12-735895-g0001.jpg
case_images: F1
case_images: She had dystonic posturing of bilateral feet (left more than right), with significant swelling and redness in the dorsum of the left foot (Figure 1).
case_images: Needle EMG recording of simultaneous co-activation of agonist-antagonist muscle pair using a concentric needle electrode and two-channel recording from (A) tibialis anterior and (B) gastrocnemius muscles.
case_images: fneur-12-735895-g0002.jpg
case_images: PMC8581642_01_fneur-12-735895-g0002.jpg
case_images: F2
case_images: Electromyography (EMG) showed sensorimotor axonal polyneuropathy in lower extremities, as well as continuous motor unit activity and co-activation of agonists and antagonist muscles (Figure 2), typical for SPS.
case_images: Chest CT showed a 4-cm left-breast mass with central necrosis.
case_images: fneur-12-735895-g0003.jpg
case_images: PMC8581642_01_fneur-12-735895-g0003.jpg
case_images: F3
case_images: A computed tomography (CT) scan of the chest, abdomen, and pelvis showed a 4-cm left-breast mass with central necrosis and multiple large left axillary lymph nodes (Figure 3).
case_images: Left panel: Core biopsy section from the left-breast mass shows invasive ductal carcinoma (x400 magnification). Right panel: Core biopsy section from the left infraclavicular lymph node shows metastatic breast carcinoma cells in the lymphoid tissue (x200 magnification).
case_images: fneur-12-735895-g0004.jpg
case_images: PMC8581642_01_fneur-12-735895-g0004.jpg
case_images: F4
case_images: Left-breast mass and the left infraclavicular lymph node biopsy revealed invasive ductal carcinoma with metastatic breast carcinoma cells in the lymphoid tissue (Figure 4), Stage IIIC.