case_images: PMC10784641_01
case_images: Hemifacial erythema distributed on the V1 and V2 dermatomes, sharply demarcated at the midline on the forehead and along the lower third of the face near the right nasolabial fold, indicated by the black arrows.
case_images: gr1.jpg
case_images: PMC10784641_01_gr1.jpg
case_images: fig1
case_images: Examination revealed unilateral facial erythema on the right side, predominantly in the V1 and V2 dermatomal distribution sharply demarcated at the midline (Fig 1).
case_images: Partial ptosis of left upper eyelid and miosis of left pupil.
case_images: gr2.jpg
case_images: PMC10784641_01_gr2.jpg
case_images: fig2
case_images: The patient had left pupillary miosis with partial ptosis that had started 4 months ago, although no asymmetric anhidrosis (Fig 2).
case_images: Thoracic MRI demonstrating a left upper lung lobe mass measuring 11.0 cm with encasement of the left common carotid artery and posterior elements of T1 and T2 segments. MRI, Magnetic resonance imaging.
case_images: gr3.jpg
case_images: PMC10784641_01_gr3.jpg
case_images: fig3
case_images: The mass also invaded through the vertebral body and posterior elements of T1 and T2 with partial encasement and mass effect of the spinal cord at these levels (Fig 3).