Publications by authors named "Ivan Humhej"
The palmaris profundus muscle is a rare anatomical variation of the forearm muscles. It has been described in both cadaveric and clinical studies as a possible cause of carpal tunnel syndrome. We observed three cases of this variant in recent years and decided to perform a scoping review of this uncommon anatomical entity.
View Article and Find Full Text PDFUlnar nerve neuropathy caused by pathologic ossification: a case report.
Surg Radiol Anat
September 2023
Purpose: Cubital tunnel syndrome is a well-described entity with many reported etiologies and anatomical compression sites. Accessory ossicles of either traumatic or congenital origin might occur around the elbow joint. Only one case reporting such ossicles compressing the ulnar nerve exists in previous literature.
View Article and Find Full Text PDFAcute piriformis syndrome mimicking cauda equina syndrome: illustrative case.
J Neurosurg Case Lessons
October 2021
Article Synopsis
- - The report discusses a rare case where a large hematoma in the piriformis muscle led to sudden urinary retention and motor/sensory issues, mimicking cauda equina syndrome; this is the first documented instance of both symptoms occurring together.
- - Diagnosis was primarily achieved through a detailed patient history, pelvic MRI, and electrophysiological tests, and the patient fully recovered after 6 days of acute sacral plexus compression thanks to rehabilitation efforts.
- - Clinicians are advised to investigate prior pelvic trauma in patients, especially those on blood thinners, and to consider pelvic MRI if lumbar imaging is inconclusive; timely surgical intervention is essential to maintain neurological health.
Magnetic resonance tractography of the brachial plexus: step-by-step.
Quant Imaging Med Surg
September 2022
Background: Magnetic resonance (MR) tractography of the brachial plexus (BP) is challenging due to different factors such as motion artifacts, pulsation artifacts, signal-to-noise ratio, spatial resolution; eddy currents induced geometric distortions, sequence parameters and choice of used coils. Notably challenging is the separation of the peripheral nerve bundles and skeletal muscles as both structures have similar fractional anisotropy values. We proposed an algorithm for robust visualization and assessment of BP root bundles using the segmentation of the spinal cord (SSC, C4-T1) as seed points for the initial starting area for the fibre tracking algorithm.
View Article and Find Full Text PDFTreatment of complex aneurysms often requires additional surgical tools including the use of the extra-intracranial (EC-IC) bypass. The following report depicts the utilization of the EC-IC bypass in treating a dissecting aneurysm several hours after a salvage emergent evacuation of an acute subdural hematoma via decompressive craniectomy (DC). Preserving the superficial temporal artery during the DC provided a donor artery for the bypass surgery.
View Article and Find Full Text PDFBackground: Diffusion tensor imaging (DTI) is now widely used in neurosurgery to preoperatively delineate the course of the pyramidal tract.
Objective: To evaluate the accuracy of the method by comparison with subcortical electrical stimulation and to evaluate the influence of the distance of the pyramidal tract from the tumor on the resection extent and postoperative clinical deficits.
Methods: A diffusion tensor imaging depiction of the pyramidal tract was used in preoperative planning and intraoperative navigation in 72 cases.