creator cover Neurosurgeon, Ph.D. Sergey Tikhomirov
Neurosurgeon, Ph.D. Sergey Tikhomirov

Neurosurgeon, Ph.D. Sergey Tikhomirov 

Neurology & Neurosurgery. Online consultation.

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Consulting on neurological and neurosurgical pathology of the brain and spinal cord, spine, peripheral nerves based on the results of objective examination methods.

degenerative diseases of the spine: protrusions and herniated discs, spondyloarthrosis, spondylodiscitis, scoliosis;
craniocerebral trauma and its consequences;
cerebral circulation disorders;
trauma to the spine and spinal cord;
peripheral nerve injury;
brain tumors;
epilepsy;
multiple sclerosis;
Bell's palsy;
neurotic disorders;
neurodegenerative diseases of the central nervous system: Parkinson's disease, Alzheimer's disease, Binswanger's disease;
neuropathies and polyneuropathies.
What examinations can be referred for consultation ?
You can refer for consultation:
   MSCT (multispiral computed tomography), MRI (magnetic resonance imaging) in the original digital dicom format (manual), or high-quality photos/scans of the images in png or jpeg format;
The development of myelitis during Atezolizumab therapy.
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Kimmerli's anomaly

Kimmerli's anomaly, also known as ponticulus posticus, is an anatomical variant involving the ossification of the posterior atlanto-occipital membrane over the groove of the vertebral artery, leading to the formation of an arcuate foramen or ridge (). This anomaly can result in extravasal compression of the vertebral artery, which can sometimes cause cerebrovascular symptoms.
A complete Kimmerli anomaly on the right and an incomplete one on the left.

Head wound from an air gun.

Patient C., 16 years old, applied. According to the patient's words, the previous day he accidentally shot himself in the head from a pneumatic weapon. On visual examination, an entrance hole with a diameter of 2-3 mm was seen in the right frontal region.
Intraoperative photograph. The entrance hole in the frontal region on the right side is visible.
The patient underwent MSCT of the brain. A foreign body is seen in the soft tissues of the frontal region. Due to metal artifacts it is not possible to make an unambiguous conclusion about the presence or absence of damage to the frontal bone.
MSCT of the brain: axial and coronal scans show a metallic foreign body. Due to artifacts, it is difficult to clearly determine whether or not there is a frontal bone lesion.

Clinical observation: left-sided herniated intervertebral disc L5-S1, compressing the right S1 root.

A patient came to the consultation complaining of pain in the lumbar region radiating along the posterior surface of the right lower limb. An X-ray report on an MRI examination of the lumbar spine by a radiologist described a left-sided herniated disc. Visual examination of the MRI scans shows that the herniation originates from the left segment of the intervertebral disc, and then spreads obliquely down and to the right with moderate compression of the right S1 root.

Transformation of a subdural haematoma. Clinical example.

Patient K., 47 years old, was injured as a result of a fall from a snowcat. He was taken by an ambulance brigade to the Kineshma Central District Hospital (Ivanovo Region, Kineshma).
According to the results of MSCT of the brain, the patient was found to have:
-- Acute epidural haematoma of small volume in the pole section of the right temporal lobe of the brain.
-- Acute small-volume patch-like subdural haematoma in the right temporoparietal region without signs of brain compression.
-- Traumatic subarachnoid haemorrhage.
-- Linear fracture of the scale of the right temporal bone.
Fig.1,2: MSCT scans performed when the patient was admitted to hospital showing traumatic intracranial haematomas.
Fig.3: 3D reconstruction based on MSCT scans. A linear fracture of the scales of the right temporal bone is seen.

Foraminal blockade.

A foraminal block is a medical procedure in which a medication (usually a local anesthetic and/or corticosteroid) is injected into the area where the spinal nerve exits through the intervertebral foramen (foraminal opening). This procedure is used to diagnose and treat pain syndromes associated with compression or inflammation of nerve roots.
Indications for foraminal blockade
-> Radiculopathy - pain caused by nerve root compression (e.g., herniated disc, spinal canal stenosis, or osteophytes).
-> Radicular syndrome - pain that irradiates along the course of the nerve (e.g., sciatica).
-> Chronic back or neck pain that cannot be treated conservatively.
-> Diagnosis of the source of pain - if the cause of the pain is unclear, a block can help determine if the pain is related to a specific nerve root.
-> Inflammation of the nerve root (e.g. spondyloarthritis).
Fig.1: MRI of the lumbar spine. Right-sided foraminal herniation of the intervertebral disc L4-L5 is visible.
Fig.2: MRI of the lumbar spine. Right-sided foraminal herniation of the intervertebral disc L4-L5 is visible.

Natural resorption of herniated disc at the level of L5-S1. Formation of foraminal herniation at the level of L4-L5. Clinical observation.

Patient B, 57l, came for a consultation. Past medical history. First time severe pain in the lumbar region with irradiation to the left lower extremity occurred in 2017. He refrained from the proposed surgery. I was treated conservatively. The pain gradually regressed and the patient had no back problems for several years. He became ill again in 2025, but this time the pain from the lumbosacral region irradiated to the right lower extremity. MRI scans from 2017 and 2025 were presented for consultation.
Below is a series of scans from 2017
MRI of the lumbar spine dated 2017. Left-sided paramedian sequestered L5-S1 herniation is seen.

Beratung zur neurologischen und neurochirurgischen Pathologie des Gehirns und des Rückenmarks, der Wirbelsäule, der peripheren Nerven auf der Grundlage der Ergebnisse objektiver Untersuchungsmethoden.

degenerative Erkrankungen der Wirbelsäule: Bandscheibenvorwölbungen und -vorfälle, Spondyloarthrose, Spondylodiszitis, Skoliose;
Schädel-Hirn-Trauma und seine Folgen;
Störungen des zerebralen Kreislaufs;
Trauma der Wirbelsäule und des Rückenmarks;
periphere Nervenverletzungen;
Hirntumore;
Epilepsie;
Multiple Sklerose;
Bellsche Lähmung;
neurotische Störungen;
neurodegenerative
Erkrankungen des zentralen Nervensystems: Parkinsonsche Krankheit,
Alzheimersche Krankheit, Binswangersche Krankheit;
Neuropathien und Polyneuropathien.
Welche Untersuchungen können zur Beratung überwiesen werden?

Sie können folgende Untersuchungen zur Konsultation einreichen: 

Consulta sobre patología neurológica y neuroquirúrgica del cerebro y la médula espinal, la columna vertebral y los nervios periféricos basada en los resultados de métodos de examen objetivos.

   Enfermedades degenerativas de la columna vertebral: protrusiones y hernias discales,espondiloartrosis, espondilodiscitis, escoliosis;
    traumatismos craneoencefálicos y sus consecuencias;
    trastornos de la circulación cerebral;
    traumatismos de la columna vertebral y la médula espinal;
    lesiones nerviosas periféricas;
    tumores cerebrales;
    epilepsia;
    esclerosis múltiple;
    parálisis de Bell;
    trastornos neuróticos;
    enfermedades
neurodegenerativas del sistema nervioso central: enfermedad de
Parkinson, enfermedad de Alzheimer, enfermedad de Binswanger;
    neuropatías y polineuropatías.
¿Qué exámenes pueden remitirse a consulta?
Puede remitir para consulta 
   MSCT (tomografía computarizada multiespiral), MRI (resonancia magnética) en el formato digital original dicom (manual), o fotos/escaneos de alta calidad de las imágenes en formato png o jpeg;
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