Pituicytoma is a rare brain tumor. It grows at the base of the brain from the pituitary gland. This tumor is thought to be derived from the parenchymal cells of the posterior lobe of the pituitary gland, called pituicytes. Some researchers believe that they arise from the folliculostellate cells in the anterior lobe of the pituitary. As such, it is a low-grade glioma. It occurs in adults and symptoms include visual disturbance and endocrine dysfunction. They are often mistaken for pituitary adenomas which have a similar presentation and occur in the same location. The treatment consists of surgical resection, which is curative in most cases. References
Further reading


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Parents who are carriers of the defective genes show no symptoms but their children have a 25% chance of having CIE.There are several genetic faults which can produce CIE. Known genes involved include TGM1, ALOX12B, ALOXE3, NIPAL4, ABCA12, CYP4F22, LIPN, CERS3, PNPLA1, ST14, and CASP14. Diagnosis
Diagnosis of this condition is done via:
Sequencing of genes- TG1,ALOXE3, ALOX12B, NIPAL4,CYP4F2, CERS3, LIPN etc..Measuring insitu TG1 activity in cryostat sectionelectron microscopy- cholesterol clefts in stratum corneum

Treatment
See also
Ichthyosis
Lamellar ichthyosis
Collodion baby
List of cutaneous conditions

References
External links
GeneReviews/NCBI/NIH/UW entry on Autosomal Recessive Congenital Ichthyosis