SKULL BASE REGION Cerebellopontine angle/internal auditory canal HISTOPATHOLOGY N/A PRIOR SURGICAL RESECTION Surgical exploration only PERTINENT LABORATORY FINDINGS Pretreatment audiogram: Class D hearing in left ear with word recognition at…

SKULL BASE REGION Trigeminal cistern HISTOPATHOLOGY N/A PRIOR SURGICAL RESECTION N/A PERTINENT LABORATORY FINDINGS N/A  Case description The patient is an 82-year-old woman who suffered from tic douloureux in the…

SKULL BASE REGION Cerebellopontine angle/internal auditory canal HISTOPATHOLOGY Schwannoma PRIOR SURGICAL RESECTION Yes PERTINENT LABORATORY FINDINGS Pretreatment audiogram: Class B hearing with word recognition scores at 65% and pure tone…

SKULL BASE REGION Cerebellopontine angle/internal auditory canal HISTOPATHOLOGY N/A PRIOR SURGICAL RESECTION No PERTINENT LABORATORY FINDINGS Pretreatment audiogram: Class D hearing with word recognition scores at 37% and pure tone…

SKULL BASE REGION Cerebellopontine angle/internal auditory canal HISTOPATHOLOGY N/A PRIOR SURGICAL RESECTION No PERTINENT LABORATORY FINDINGS Pretreatment audiogram: Class A hearing bilaterally with word recognition scores at 100% in both…

SKULL BASE REGION Cerebellopontine angle/internal auditory canal HISTOPATHOLOGY Schwannoma PRIOR SURGICAL RESECTION Yes PERTINENT LABORATORY FINDINGS Pretreatment audiogram: Class A hearing bilaterally  Case description The patient presented at 35 years…

SKULL BASE REGION Cerebellopontine angle HISTOPATHOLOGY Diagnosis based on neuroimaging only PRIOR SURGICAL RESECTION No PERTINENT LABORATORY FINDINGS N/A  Case description The patient is a 36-year-old patient who presented with…

SKULL BASE REGION Prepontine cistern/trigeminal nerve HISTOPATHOLOGY N/A PRIOR SURGICAL RESECTION No PERTINENT LABORATORY FINDINGS N/A  Case description This is a 59-year-old patient with an incidental lesion compatible with a…

SKULL BASE REGION Cerebellopontine angle/petrous bone HISTOPATHOLOGY Endolymphatic sac tumor PRIOR SURGICAL RESECTION Yes PERTINENT LABORATORY FINDINGS N/A  Case description The patient is a 74-year-old female with a known history…

SKULL BASE REGION Sphenopetroclival HISTOPATHOLOGY Meningioma, transitional PRIOR SURGICAL RESECTION Yes PERTINENT LABORATORY FINDINGS N/A  Case description The patient is a 46-year-old female who presented to another hospital with progressive…