Hypophysitis - new insights into diagnosis and treatment

Area of Science:

• Endocrinology
• Immunology
• Neurology

Background:

• Hypophysitis involves inflammation of the pituitary gland and stalk, potentially primary or secondary to other conditions.
• Symptoms include pituitary enlargement, hormonal deficiencies, diabetes insipidus, and hyperprolactinemia.
• Accurate diagnosis is challenging due to the rarity of hypophysitis and the invasiveness of pituitary biopsy.

Purpose of the Study:

• To consolidate key information on primary hypophysitis, covering epidemiology, clinical presentation, diagnostics, and treatment.
• To enhance understanding and management strategies for hypophysitis.
• To briefly characterize post-traumatic and immunotherapy-related hypophysitis.

Main Methods:

• Diagnosis relies on clinical evaluation, laboratory tests, and imaging studies.
• Histopathological verification via pituitary biopsy is the gold standard but rarely performed.
• Treatment strategies include hormonal replacement and high-dose steroids; immunosuppressants are used for resistant cases.

Main Results:

• The disease course is variable, with potential for remission or progression to pituitary fibrosis and atrophy.
• Persistent hormonal deficiencies and empty sella are common sequelae.
• Steroid therapy is first-line for mass effect symptoms; alternative immunosuppressants show success in refractory cases.

Conclusions:

• Effective management of hypophysitis requires a comprehensive approach integrating clinical, laboratory, and imaging data.
• Further research is needed to establish clear treatment guidelines due to data limitations.
• Understanding the diverse etiologies and clinical spectrum is crucial for optimal patient outcomes.