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Sella and Suprasellar Brain Tumours and Infiltrarive Disorders Affecting the HPA-Axis

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Abstract

The pituitary is a unique organ that is key to maintaining end organ function. However, it is particularly susceptible to some tumors, cysts, and infiltrates. Disruption of pituitary function may help target symptom etiology, but can lead to significant morbidity and mortality if not treated effectively.

Patients can present with similar symptom of mass effect, headaches, and pituitary deficiencies despite disparate types of lesions. In some cases, the patient is asymptomatic, and the lesion is found incidentally on Computerized Tomography (CT)/Magnetic resonance imaging (MRI) imaging. Treatment may depend on the type of lesion found on MRI or after surgical pathology when a definitive diagnosis is acquired.

Disorders such as empty sella syndrome may be primary or secondary to other disorders such as intracranial hypertension or occur after tumor resection. Infiltrative and infective disorders may be primary or localized to the pituitary, or may result secondarily from other system diseases. Cysts or tumors beginning in embryonic development can become symptomatic, with growth impacting the optic apparatus resulting in mass effect symptoms such as headaches and/or visual changes. Other tumors may originate in the hypothalamus, grow downward and impact the optic apparatus and the pituitary gland.

Assessment includes a detailed history and physical, MRI and biochemical and dynamic testing for pituitary dysfunction. MRI may have characteristics suggestive of a diagnosis but surgical pathology is often required for a definitive diagnosis. Treatment is often dictated by tumor or lesion histology.

Nursing assessment includes patient emotional, social and executive functions, resources, family history including parental and personal exposures. Together these form the basis of patient education, preparation for further testing and treatment planning decisions. The patient’s family can be important historians of patient symptoms particularly in the event of cognitive and memory dysfunction.

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Abbreviations

ACTH:

Adrenocorticotrophic hormone

AIP:

Aryl hydrocarbon–interacting protein gene

CP:

Craniopharyngioma

CSF:

Cerebrospinal fluid

CT:

Computerized tomography

DI:

Diabetes insipidus

ES:

Empty sella

FSH:

Follicle stimulating hormone

GSU:

Glycoprotein hormone subunits

HPA:

Hypothalamic-pituitary-adrenal (axis)

ICP:

Intracranial pressure

IIH:

Idiopathic intracranial hypertension

LAR:

Long acting release

LCH:

Langerhans Cell Histiocytosis

LDL:

Low density lipoprotein

LH:

Luteinizing hormone

LHH:

Lymphocytic hypophysitis

LINH:

Lymphocytic infundibuloneurohy pophysitis

MEN-1:

Multiple endocrine neoplasia-type 1

MRI:

Magnetic resonance imaging

PC:

Pituitary carcinoma

PES:

Primary empty sella

PH:

Pituitary hypophysitis

QoL:

Quality of life

RCC:

Rathke’s cleft cysts

SES:

Secondary empty sella

SSA:

Somatostatin analogues (ligands)

SSTR:

Somatostatin receptor

TSH:

Thyroid stimulating hormone

WHO:

World Health Organization

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Correspondence to Christine Yedinak .

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Yedinak, C. (2019). Sella and Suprasellar Brain Tumours and Infiltrarive Disorders Affecting the HPA-Axis. In: Llahana, S., Follin, C., Yedinak, C., Grossman, A. (eds) Advanced Practice in Endocrinology Nursing. Springer, Cham. https://doi.org/10.1007/978-3-319-99817-6_14

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  • DOI: https://doi.org/10.1007/978-3-319-99817-6_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-99815-2

  • Online ISBN: 978-3-319-99817-6

  • eBook Packages: MedicineMedicine (R0)

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