Rare kissing antra of the maxillary sinuses: clinical implications.

Purpose: To report a rare anatomical variant of the maxillary sinuses, with radiological and clinical emphasis.

Methods: A 40-year-old male with recurrent acute rhinosinusitis presented to our center for clinical management. A computed tomography scan revealed the presence of an incidental anatomical variant of bilateral maxillary sinuses for which we coin the term "kissing antra".

Respiratory Chain Complex I Deficiency in Leber Hereditary Optic Neuropathy: Insights from Ophthalmologic and Molecular Investigations in Tunisia.

Background: Leber hereditary optic neuropathy (LHON) is a mitochondrial DNA (mtDNA) rare disease due to the pathogenic variant of the NADH dehydrogenase enzyme. LHON is characterized by a sudden central vision loss due to focal degeneration of the retinal ganglion cell layer and optic nerve. Symptoms usually appear between the age of 18 and 35 years.

Fluoroscopic, Computed Tomographic, and Magnetic Resonance Myelography.

Despite all the advantages of magnetic resonance (MR) imaging, there still exist contraindications or limitations to its use. Thus, MR imaging has not entirely replaced fluoroscopic or computed tomographic (CT) myelography to depict the outline of the spinal cord and its nerve roots after intrathecal injection of contrast medium. The growing recent interest of neuroradiologists to accurately diagnose and treat cerebrospinal fluid leaks has also driven a resurgent need for familiarity with this image-guided procedure.

Dural Puncture Complications.

Dural puncture, commonly referred to as lumbar puncture (LP), carries the risk of rare but serious complications including post-dural puncture headache, hemorrhage, herniation, and infection. These complications can lead to suboptimal patient outcomes including significant morbidity and mortality in some instances. This review comprehensively examines potential LP complications, including their incidence, pathophysiology, risk factors, clinical presentations, imaging findings, preventative measures, and treatment strategies.