Primary Isolated Lymphoma of the Fourth Ventricle in an Immunocompetent Patient

Table 1

Summary of the reported cases of 4th ventricular PCNSL in the literature.

Author (reference)	Age (yrs)/sex	Presentation	Radiology	Surgical treatment	CSF cytology	Adjuvant therapy	Survival
Werneck et al. [3]	17/F	Meningitis, diagnosis after mortem	Negative radiology but after mortem small tumor was found with carcinomatous meningitis	N/A	Positive	N/A	Diagnosis after mortem
Haegelen et al. [4]	33/F	Headache, vomiting with cerebellar signs	Tumor filling the 4th ventricle with no HCP	GTR	Negative	Cytarabine and steroids with stem cell transplantation with WBRT	7 months
Hill et al. [5]	69/F	Headache, vomiting	Homogenously enhancing tumor in the caudal fourth ventricle without hydrocephalus	Biopsy	N/A	IV and IT MTX	3 months
Current case	50/M	Headache, vomiting with drowsiness	Homogenously enhancing tumor in the caudal fourth ventricle with hydrocephalus	GTR	Negative	Regimen containing IV and IT MTX and radiotherapy	18 months

GTR: gross total resection; IV: intravenous; IT: intrathecal; MTX: methotrexate; N/A: not available.