Ozerov S S, Tereshchenko G V, Artemov A V, Kumirova E V, Samarin A E, Papusha L I, Grachev N S, Zheludkova O G
Federal Scientific and Clinical Center for Childhood Hematology, Oncology and Immunology.
Federal Scientific and Clinical Center for Childhood Hematology, Oncology and Immunology; Russian Scientific Center Roentgenology and Radiology, Moscow, Russia.
Zh Vopr Neirokhir Im N N Burdenko. 2015;79(5):72-76. doi: 10.17116/neiro201579572-76.
the study objective was to improve the quality of detection of medulloblastoma metastases.
Magnetic resonance imaging (MRI) of the spinal cord in a child with medulloblastoma of the posterior cranial fossa, which was performed on the first day after surgery, detected contrast-positive thickenings of the meninges in the cervical, thoracic, and lumbar spinal cord that might be erroneously diagnosed as metastasis. These lesions spontaneously regressed within 3 weeks, which was verified by control MRI.
In the case of misinterpretation of a MRI picture of contrast-positive thickenings of the meninges, a patient is erroneously regarded as having tumor metastases and is subject to more intensive treatment. However, the lesions spontaneously disappear or greatly reduce after 2-3 weeks. The article presents a case of this phenomenon, describes the putative mechanisms of its development, and provides recommendations for its differential diagnosis from metastases.
