[Adrenal insufficiency and hypercalcemia--an unusual presentation]

Area of Science:

• Endocrinology
• Oncology
• Nephrology

Background:

• Craniopharyngiomas are rare pituitary tumors often presenting with hormonal deficiencies.
• Hypercalcemia is a complex metabolic disturbance with diverse etiologies.
• Adrenal insufficiency can manifest with nonspecific symptoms like fatigue and nausea.

Observation:

• A 49-year-old male presented with severe fatigue, nausea, vomiting, weight loss, and headache.
• Investigations revealed moderate hypercalcemia and panhypopituitarism, linked to a diagnosed craniopharyngioma.
• Common causes of hypercalcemia were systematically excluded.

Findings:

• The patient's hypercalcemia was ultimately attributed to secondary adrenal failure.
• The craniopharyngioma was the primary cause of panhypopituitarism and subsequent adrenal insufficiency.
• This case illustrates an unusual presentation of hypercalcemia secondary to adrenal failure.

Implications:

• Craniopharyngiomas require comprehensive endocrine assessment due to potential pituitary and adrenal dysfunction.
• Unexplained hypercalcemia, especially in the presence of pituitary abnormalities, warrants investigation for adrenal insufficiency.
• Understanding the interplay between pituitary tumors, adrenal function, and calcium metabolism is crucial for effective patient management.