What are Craniopharyngiomas?

Craniopharyngiomas
Pathological findings. (a and b) Histopathology at 31 years of age. The tumor is covered with prickle cells, and a single layer of nonatypical basal cells and cholesterin crystals is present in the interstitial tissue. The diagnosis was adamantinomatous craniopharyngioma. (c and d) Histopathology at 36 years and 3 months of age. Densely packed squamous cells and stratification of basal cells with an atypical appearance are seen. The features of adamantinomatous type craniopharyngioma are no longer apparent. (c–d) Hematoxylin and eosin staining at the original magnification.Sequential pathological changes during malignant transformation of a craniopharyngioma: A case report and review of the literature. Negoto T, Sakata K, Aoki T, Orito K, Nakashima S, Hirohata M, Sugita Y, Morioka M - Surgical neurology international (2015). Not Altered. CC.

Craniopharyngiomas are rare intracranial dysontogenic tumors with benign histology and malignant behavior

What is the Pathology of Craniopharyngiomas?

The pathology of craniopharyngiomas is:  

-Etiology: The cause of craniopharyngiomas is fragments of the Rathke cleft and craniopharyngeal duct and gene mutation and involvement.

-Genes involved: Beta-catenin gene, BRAF (V600E).

-Pathogenesis: The sequence of events that lead to craniopharyngiomas; arise from the proliferation of epithelial-squamous cells lining the pituitary stalk.

-Morphology: The morphology associated with craniopharyngiomas shows large cysts or multiple cysts with solid components, fibrous tissue necrotic debris, and calcifications.

-Histology: The histology associated with craniopharyngiomas shows the basal layer of trivial cells, darkly stained nuclei and slight cytoplasm, keratinized to flat plate-like squamous cells.

How does Craniopharyngiomas Present? 

Patients with craniopharyngiomas typically has no gender prevalence, present at age range of 5 to 65 years The symptoms, features, and clinical findings associated with craniopharyngiomas include endocrine dysfunction, headache visual disturbances, cold intolerance, weight gain, excessive fatigue, adrenal failure symptoms diabetes insipidus and reduced sexual drive.

How are Craniopharyngiomas Diagnosed? 

Craniopharyngiomas are diagnosed through laboratory studies, complete endocrine evaluation (serum and urine osmolality thyroid functioning tests, growth hormone levels).

How is Craniopharyngiomas Treated? 

Craniopharyngiomas are treated through surgical resection, radiation therapy, or chemotherapy.

What is the Prognosis of Craniopharyngiomas?

The prognosis of craniopharyngiomas is good.