- Prospective, Longitudinal Study of Clinical Outcome and Morphometric Posterior Fossa Changes after Craniocervical Decompression for Symptomatic Chiari I Malformation
This prospective, longitudinal study of patients with Chiari I malformation posterior fossa dural opening and duraplasty quantified the change in the posterior fossa and upper cervical spine morphometrics and determined the change in symptomatology between at baseline and up to 5 years postsurgery. The authors found that symptomatic and MR imaging morphometric changes occurred within the first postoperative year.
- Differentiation between Chondrosarcoma and Synovial Chondromatosis of the Temporomandibular Joint Using CT and MR Imaging
As chondrosarcoma and synovial chondromatosis of the temporomandibular joint share overlapping clinical and histopathologic features, CT and MR imaging can be helpful to differentiate between the 2 entities. High-risk imaging features for chondrosarcoma include the following: lesion centered on the mandibular condyle, destruction of the mandibular condyle, no destruction/sclerosis of the articular eminence/glenoid fossa, infiltration into the tendon of the lateral pterygoid muscle, absent or stippled calcification, periosteal reaction, internal enhancement, and size of ≥30.5 mm.
- Update from the 5th Edition of the WHO Classification of Nasal, Paranasal, and Skull Base Tumors: Imaging Overview with Histopathologic and Genetic Correlation
This manuscript reviews the 2022 World Health Organization update on the head and neck tumor classification, emphasizing the importance of molecular data and genetic alterations in sinonasal neoplasms. It includes new entities and changes to the taxonomy and characterization of tumors.
- Utility of Gadolinium-Based Contrast in Initial Evaluation of Seizures in Children Presenting Emergently
The authors aimed to assess the utility of gadolinium-based contrast agents in MR imaging performed for the evaluation of acute pediatric seizure presentation. In their study population, epileptogenic findings were found in 28% of patients, but gadolinium contrast was found to be of limited additive benefit in these patients.
- Validity of the Bern Score as a Surrogate Marker of Clinical Severity in Patients with Spontaneous Intracranial Hypotension
The Bern score quantitatively characterizes brain MR imaging changes in spontaneous intracranial hypotension. This imaging biomarker was shown to have a low correlation with clinical headache severity and, therefore, imaging findings in isolation may have limited utility as primary outcome measures when assessing treatment response.
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