PMC6197025_01
Macroscopic view of the intramedullary schwannoma. (A) The neoplasm in the cervical spinal cord (C3-C5). (B) The long, oval neoplasm (2.5 cm x 1.0 cm x 1.0 cm). (C) Local concave compression of C3-C5.
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A neoplasm measuring 2.5 cm x 1.0 cm x 1.0 cm was located in the left cervical spinal cord (C3-C5) underneath the spinal nerve root, with a clear boundary and integrated surface of the neoplastic capsule (Figure 1).
Microscopic examination of the intramedullary schwannoma. (A) Verocay body (HE x400). (B) Hollow-like degeneration of the spinal nerve tracts (HE x200). (C) Hydropic degeneration of anterior spinal cord motor neurons (HE x400).
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Sporadic Verocay bodies (Antoni type A), haemangiectasis with paralytic congestion, myxoid matrix deposition and vascular wall hyaline degeneration (Antoni type B) were present within the tumour (Figure 2(A)). The axons of the ventral root of the spinal nerve were unevenly thick and homogeneously solid, and they exhibited hollow degeneration (Figure 2(B)). Hydropic degeneration and lipofuscin pigment deposition were observed in ventricolumnar motor neurons (Figure 2(C)).