case_images: PMC7989829_01
case_images: Axial FLAIR MRI showing no supra- or infratentorial areas/foci of abnormal signals.
case_images: crn-0013-0157-g01.jpg
case_images: PMC7989829_01_crn-0013-0157-g01.jpg
case_images: F1
case_images: Her diagnosis was revised with repetition of laboratory testing and imaging, and she was diagnosed with NMO on the basis of positive AQP4 in her cerebrospinal fluid (CSF) as well as magnetic resonance imaging (MRI), which demonstrated atrophy of the cervical cord (Fig. 1, 2, 3).
case_images: Axial high-resolution T2-weighted MRI showing atrophic changes affecting the optic nerve bilaterally, with prominent CSF in the optic sheath, with no infratentorial abnormal signal intensity.
case_images: crn-0013-0157-g02.jpg
case_images: PMC7989829_01_crn-0013-0157-g02.jpg
case_images: F2
case_images: Her diagnosis was revised with repetition of laboratory testing and imaging, and she was diagnosed with NMO on the basis of positive AQP4 in her cerebrospinal fluid (CSF) as well as magnetic resonance imaging (MRI), which demonstrated atrophy of the cervical cord (Fig. 1, 2, 3).
case_images: Sagittal T1-, T2-, T1-weighted post-gadolinium-enhanced cervical MRI and sagittal T2-weighted dorsal MRI showing atrophic changes with prominent CSF with no areas of abnormal signal intensity.
case_images: crn-0013-0157-g03.jpg
case_images: PMC7989829_01_crn-0013-0157-g03.jpg
case_images: F3
case_images: Her diagnosis was revised with repetition of laboratory testing and imaging, and she was diagnosed with NMO on the basis of positive AQP4 in her cerebrospinal fluid (CSF) as well as magnetic resonance imaging (MRI), which demonstrated atrophy of the cervical cord (Fig. 1, 2, 3).
case_images: a Axial and coronal noncontrast CT done at the onset of the headache showing high-density blood involving the left cortical sulci (subarachnoid hemorrhage [SAH]). b Brain axial gradient MRI showing blooming of the left frontal cortical sulci confirming the diagnosis of SAH. c Sagittal and coronal brain MR venography, axial view, showing no filling defect or thrombosed veins.
case_images: crn-0013-0157-g04.jpg
case_images: PMC7989829_01_crn-0013-0157-g04.jpg
case_images: F4
case_images: At the age of 36 years, she developed a sudden-onset headache with normal blood pressure, and her CT and MRI confirmed a rim of subarachnoid hemorrhage (SAH) in the left frontal cortical sulci (Fig. 4a, b), while CT angiography and MR venography (Fig. 4c) excluded arteriovenous malformations or aneurysms.
case_images: Axial and coronal noncontrast CT done 6 months after the onset of subarachnoid hemorrhage showing complete resolution of the hemorrhage.
case_images: crn-0013-0157-g05.jpg
case_images: PMC7989829_01_crn-0013-0157-g05.jpg
case_images: F5
case_images: The patient was managed conservatively, and repeated CT after 6 months indicated the resolution of the SAH (Fig. 5).