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Intradural spinal hibernoma: case report

S Chitoku¹, S Kawai, Y Watabe

¹Department of Neurosurgery, Osaka Prefectural Hospital, Japan.

Surgical Neurology

|May 20, 1998

Summary

This summary is machine-generated.

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Hibernoma, a rare brown fat tumor, can occur in the spine. This case highlights the importance of histopathology for diagnosing spinal hibernoma, distinguishing it from other lipomatous tumors.

Area of Science:

Oncology
Neurosurgery
Pathology

Background:

Hibernoma is a rare, benign neoplasm originating from brown adipose tissue remnants.
Typically presents in muscle or subcutaneous tissue, often asymptomatic and slow-growing.

Observation:

A 35-year-old woman presented with motor weakness and numbness in her left upper extremity.
Cervical spinal magnetic resonance imaging (MRI) identified an intradural extramedullary mass at C7.
Surgical excision via a posterior approach was performed, with complete removal of the lesion.

Findings:

Histopathologic examination revealed multivacuolated cells with centrally placed nuclei, confirming hibernoma.
This case represents one of only two reported instances of spinal intradural hibernoma in the literature.

Related Experiment Videos

Radiological findings on CT and MRI can mimic other lipomatous tumors, necessitating histopathological analysis.

Implications:

Accurate diagnosis of spinal hibernoma requires surgical specimen analysis due to overlapping imaging features with lipomatous tumors.
Early diagnosis and complete resection are crucial, as some hibernomas may exhibit malignant potential or rapid growth.
Understanding the etiology, possibly involving ectopic adipose tissue, aids in comprehending rare tumor development.