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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.
Abstract:
Intravascular malignant lymphomatosis (IML) is an extremely rare form of lymphoproliferative disorder that is characterized by proliferation of the lymphoma cells in the vascular lumens. We report on a 78-year-old man who initially presented with spinal cord infarct at the T11/12 level. Despite biopsies of the spinal cord and bone marrow from the sternum, the correct diagnosis was not made until autopsy. We identified 19 patients with IML showing spinal cord symptoms as the initial clinical manifestation, and considered the clinical and radiological characteristics as well as the limitations of biopsy. IML can be an important differential diagnosis of progressive paraparesis of unknown etiology.
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