Posterior Fossa Arachnoid Cyst Masking a Delayed Diagnosis of Hyperparathyroidism in a Child

<table>Axial MRI Head scans showing the presence of a large posterior fossa arachnoid cyst, this is predominantly left sided, causing mild midline shift and some distortion of the ventricular system. There is no hydrocephalus.</table>

Case Reports in Endocrinology

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Figure 1

Figure 1: Posterior Fossa Arachnoid Cyst Masking a Delayed Diagnosis of Hyperparathyroidism in a Child 