A rare case of double lipoma of the corpus callosum: a clinical case report

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Abstract

INTRODUCTION: Intracranial lipoma is an extremely rare congenital anomaly accounting for less than 0.1% of intracranial tumors, and is due to abnormal differentiation of the meninx primitiva. It is not considered to be a true neoplasm.

AIM: To present a clinical case of double lipoma of the corpus callosum with parts of which belonging to two different types of lipomas.

The article discusses a variant of intracranial lipoma — lipoma of the corpus callosum. There are two main types of corpus callosum lipomas: curvilinear and tubulonodular. As a rule, the first type is asymptomatic and is an incidental finding during examination. The second type is often associated with abnormal development of the frontal lobes, eyes, calcifications, and also with hypogenesis or agenesis of the corpus callosum. Conservative management is recommended, since the surgical intervention is associated with a high risk of complications due to tight adjacency of lipomas to the neighboring tissues, which contain important neurovascular structures.

CONCLUSION: The presented clinical example demonstrates an incidental finding: an unusual variant of double lipoma with an asymptomatic course. Such a variant was not found in the literature. It was decided to carry out treatment of the main disease without any actions for double lipoma of the corpus callosum.

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About the authors

Alsu I. Gimaziyeva

Russian University of Medicine

Author for correspondence.
Email: alsu.famus@gmail.com
ORCID iD: 0000-0002-5940-6369
SPIN-code: 4904-2997
Russian Federation, Moscow

Liliya I. Khalimova

Bashkir State Medical University

Email: khalimova.liliya@bk.ru
ORCID iD: 0009-0006-9082-141X
Russian Federation, Ufa

Aliya I. Khabilova

Bashkir State Medical University

Email: aliyakhabilova@yandex.ru
ORCID iD: 0009-0006-5366-0434
SPIN-code: 6666-9438
Russian Federation, Ufa

Gulmira K. Khomidova

Bashkir State Medical University

Email: homidovaira@mail.ru
ORCID iD: 0009-0007-0934-9777
SPIN-code: 6595-1700
Russian Federation, Ufa

Kamil I. Ishmukhametov

Bashkir State Medical University

Email: ishmuhametovk2000@gmail.com
ORCID iD: 0009-0005-0303-6003
SPIN-code: 7069-8799
Russian Federation, Ufa

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Supplementary files

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2. Fig. 1. Multispiral computed tomography of the head, reconstruction: (А) coronal section, (B) axial section.

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3. Fig. 2. Magnetic resonance imaging of the brain: (A) T1 SE image in the sagittal plane (two hyperintense masses are determined above the corpus callosum; the curvilinear lipoma is indicated by the outline black arrow); (B) T2 image in the axial plane (the arrow indicates signal of non-uniform intensity (less than the intensity from the cerebrospinal fluid, higher than from the brain substance)), a mass up to 9 mm thick, extending 3.7 cm at this level (tubular-nodular type of lipoma)); (С) T2-FLAIR image in the coronal plane (a hyperintense structure (tubular-nodular type) 9 mm high, 6.5 mm thick is determined above the corpus callosum in the interhemispheric region, the upper contour is uneven due to the adjacent falx cerebri)).

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