Pituitary Adenoma
Pituitary adenomas are benign tumors of the pituitary gland found in approximately 10% of people on autopsy, though the vast majority never cause symptoms or require treatment. Clinically relevant adenomas produce symptoms either through hormone overproduction (prolactin, growth hormone, ACTH, TSH) or through mass effect compressing the normal pituitary, optic chiasm, or cavernous sinus.
When to Book
Book a visit if symptoms are new, persistent, getting worse, or affecting daily life. Early evaluation often prevents complications.
Symptoms
Symptoms depend on the tumor type and size. Hormone-producing tumors cause the syndrome of their specific hormone excess (amenorrhea and galactorrhea for prolactinoma, acromegaly for GH adenoma, Cushing's disease for ACTH adenoma). Non-functioning adenomas may cause panhypopituitarism, headache, and bitemporal visual field defects when large.
Causes & Risk Factors
Most pituitary adenomas are sporadic. Multiple endocrine neoplasia type 1 (MEN1) and a few other genetic syndromes increase risk. They occur across all ages but peak in the 30–60 age range.
How We Evaluate
Full anterior pituitary hormone panel (prolactin, IGF-1, ACTH, cortisol, LH, FSH, testosterone or estradiol, TSH, free T4) and a 24-hour urine cortisol or overnight dexamethasone suppression test are obtained. Pituitary MRI with gadolinium characterizes size, sellar extension, and proximity to the optic chiasm. Formal visual field testing is performed for tumors approaching or touching the chiasm.
Treatment Options
Prolactinomas are treated medically with dopamine agonists as first-line. Functioning adenomas causing acromegaly or Cushing's disease are primarily treated with transsphenoidal surgery. Non-functioning macroadenomas causing mass effect also typically require surgery. Radiotherapy is reserved for residual or recurrent tumor. Pituitary hormone deficiencies are replaced as needed.
When It Is Urgent
Seek emergency care for sudden severe headache ('thunderclap' headache), vision loss, or altered consciousness — these may indicate pituitary apoplexy requiring urgent neurosurgical evaluation.
Frequently Asked Questions
Do I need a referral to see an endocrinology provider?
No referral is needed at Nomi Beach Health. You can book directly with our team for hormone, thyroid, metabolic, or weight-management concerns.
How long does it take to see results from treatment?
Timeline depends on the condition. Thyroid medication often improves symptoms within four to eight weeks. Weight-loss interventions show measurable changes in four to twelve weeks. Hormone therapy timelines vary by the specific condition and individual response.
Will I need labs before my first visit?
You can come in without prior labs — we order whatever is appropriate during or after your visit. If you have recent results, bring them so we can start the conversation right away.
Are these conditions managed long-term or treated once?
Most endocrine and metabolic conditions require ongoing management rather than a single treatment. We build a follow-up schedule around your specific diagnosis and goals.
Can I be seen for weight loss even if I do not have a hormone diagnosis?
Yes. We evaluate weight holistically — including metabolic markers, lifestyle factors, and, when appropriate, medication options such as GLP-1 agonists.
Get a Clear Plan for Pituitary Adenoma
Our endocrinology team evaluates you as an individual and builds a treatment plan that fits your life — not a template.