case_images: PMC11723831_01
case_images: Clock Drawing and Crossed-Pentagon Drawing tests. (A) Clock Drawing Test revealed a perseveration error. The patient did not stop drawing the clock hands, and continued to draw straight lines until stopped by the examiner. (B) Crossed-Pentagon Drawing Test revealed marked impairment in visuospatial construction.
case_images: CCR3-13-e70038-g001.jpg
case_images: PMC11723831_01_CCR3-13-e70038-g001.jpg
case_images: ccr370038-fig-0001
case_images: Also, the crossed-pentagons drawing test, which involves drawing two intersecting pentagons to form a rhombus in the overlap, was impaired (Figure 1).
case_images: Comparison between the two MR images of the patient taken 7 months apart. In the axial flair images, subcortical white matter lesions were identified in images A1, A2, B1, and B2. A filling defect was observed in the left transverse sinus and sigmoid sinus, spanning images A3-A7, as indicated by a red arrow. Notably, images B3-B7 depict an almost complete resolution of the previously noted defects in the left transverse sinus and sigmoid sinus, with a residual small filling defect persisting in image B4. Additionally, a small filling defect was present in images B8 and B9, with the latter distinctly marked by a red arrow.
case_images: CCR3-13-e70038-g002.jpg
case_images: PMC11723831_01_CCR3-13-e70038-g002.jpg
case_images: ccr370038-fig-0002
case_images: Brain magnetic resonance venography (MRV) demonstrated a diminutive obstruction within the left transverse sinus (Figure 2).