Spinal cord infarct as the initial clinical presentation of intravascular malignant lymphomatosis

He Liu1, Izumi Koyanagi, Hideki Chiba

  • 1Department of Neurosurgery, Sapporo Medical University School of Medicine, South-1st, West-16th, Chuo-ku, Sapporo, Hokkaido 060-8543, Japan. drliuhe@hotmail.com

Insights

Intravascular malignant lymphomatosis (IML) is a rare disorder causing lymphoma cell proliferation within blood vessels. This study highlights IML as a critical differential diagnosis for unexplained progressive paraparesis, often missed before autopsy.

Area of Science:

  • Hematology
  • Neurology
  • Oncology

Background:

  • Intravascular malignant lymphomatosis (IML) is an exceptionally rare lymphoproliferative disorder.
  • It is defined by the proliferation of lymphoma cells within vascular lumens.

Observation:

  • A case of a 78-year-old man presenting with spinal cord infarct at T11/12 is detailed.
  • Diagnosis was delayed, only confirmed post-mortem despite initial biopsies.
  • A review identified 19 IML patients with initial spinal cord symptoms.

Findings:

  • IML can manifest initially with spinal cord symptoms, mimicking other neurological conditions.
  • Clinical and radiological features of IML presenting with neurological deficits were analyzed.
  • Limitations of standard biopsy procedures in diagnosing IML were considered.

Implications:

  • IML should be considered in the differential diagnosis of progressive paraparesis of unknown origin.
  • Early recognition of IML can improve patient outcomes.
  • Further research into diagnostic methods for IML is warranted.

Related Concept Videos

Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Development of the Lymphatic System01:15

Development of the Lymphatic System

The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
Herniated Intervertebral Disc l: Introduction01:29

Herniated Intervertebral Disc l: Introduction

Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...