Hemangioblastoma masquerading as a ring enhancing lesion in the cerebellum: A case report
Li Li1, Hui-Min Xie2, Seidu A Richard1,3
1Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
Rationale:
Hemangioblastomas (HGBMs) are very rare, and the cerebellum is usually the most common site of occurrence. HGBMs with ring-enhanced walls are often misdiagnosed as metastases, abscesses, glioblastomas, tuberculomas, and demyelinating diseases. Thus, we present a rare case of HGBM masquerading as a ring-enhancing lesion in the cerebellum.
Patient Concerns:
We present a 33-year-old female who was admitted to our department because of headaches, unstable walking, and visual loss in both eyes. Cranial nerve examination revealed deficits in cranial nerve II.
Diagnosis:
Magnetic resonance imaging revealed 2 cystic lesions in the cerebellum, with irregular ring-enhanced cyst walls composed of smaller nodular parts. Immunohistochemical staining of resected specimens established HGBM.
Interventions:
The lesions were completely resected using a right retrosigmoid approach.
Outcomes:
Two years of follow-up revealed no recurrence of her symptoms or tumor. She is currently well and performs her daily duties.
Lessons:
HGBMs with enhanced cysts are often misdiagnosed by radiology because of their ring-enhanced nature. Computed tomography angiography may be the best modality for differentiating cerebellar HGBM from other ring-enhancing lesions. Surgery is the gold standard of treatment for these lesions.
