The short answer: Adrenocortical carcinoma (ACC) is a rare aggressive cancer of the adrenal cortex. Advanced ACC requiring end-of-life care presents unique challenges: hormonal overproduction causes Cushing syndrome, virilization, or other endocrine effects; the disease is often refractory to available therapies; and the rarity leaves patients isolated. Palliative care focuses on managing hormonal complications alongside standard cancer symptoms.

What to Expect With Adrenocortical Carcinoma (ACC) End-of-Life Care

Adrenocortical carcinoma is among the rarest of all malignancies — approximately 600-1,000 new cases annually in the US. It arises from the adrenal cortex and is biologically aggressive. About 60% of ACC produces hormones (cortisol, androgens, aldosterone, or mixed), creating unique symptoms that distinguish it from other cancers.

Understanding ACC and Its Treatment

Surgical resection is the only curative treatment, but most ACC is diagnosed at advanced stage. Mitotane (o,p'-DDD) is the primary adjuvant therapy — it suppresses adrenal function and has direct cytostatic effects. Combination chemotherapy (EDP-M: etoposide, doxorubicin, cisplatin, mitotane) is used for advanced disease. Immunotherapy is being investigated. Response rates are modest and the disease typically progresses.

Hormonal Overproduction: The Defining Challenge

Cortisol excess (Cushing syndrome): Weight gain (particularly truncal/face), muscle weakness, diabetes, hypertension, immune suppression, mood changes (depression, psychosis), skin fragility, poor wound healing. Managing Cushing syndrome while cancer is progressing requires careful balance of mitotane dosing and adrenal-suppressive medications.

Androgen excess: Virilization in women (hair growth, deepened voice, enlarged clitoris), and similar effects in men. These changes are distressing and affect body image.

Cortisol deficiency (from mitotane): Mitotane suppresses adrenal function — patients must take glucocorticoid and mineralocorticoid replacement therapy, particularly important during illness or physiological stress when cortisol requirements increase.

Symptoms of Advanced ACC

Beyond hormonal effects: abdominal pain from liver or adrenal metastases; back pain from retroperitoneal disease; pulmonary symptoms from lung metastases; fatigue and weight loss; nausea and anorexia from mitotane (GI toxicity is the dose-limiting side effect).

Adrenal Crisis: A Specific Risk

Patients on mitotane are adrenal-suppressed. If they become acutely ill (infection, trauma, surgery) and cannot take their medications, or if cortisol replacement is inadequate, they can develop adrenal crisis — life-threatening cortisol deficiency with hypotension, vomiting, and collapse. Family and hospice teams must be educated about this specific emergency.

Finding Specialized Care

ACC should be managed at specialized centers with adrenal tumor expertise (MD Anderson, Mayo Clinic, University of Michigan, NIH). For end-of-life care, local hospice can manage most symptoms if educated about mitotane and cortisol replacement, but consultation with the treating endocrine oncologist should remain available.

Frequently Asked Questions

What is adrenocortical carcinoma?

Adrenocortical carcinoma (ACC) is a rare aggressive cancer arising from the cortex (outer layer) of the adrenal glands, which sit atop the kidneys. It is one of the rarest malignancies — approximately 600-1,000 US cases annually. About 60% of ACC produces excess hormones (primarily cortisol causing Cushing syndrome, or androgens causing virilization), creating distinctive symptoms beyond typical cancer presentations.

What is Cushing syndrome from ACC?

Cushing syndrome from cortisol-producing ACC causes: weight gain concentrated in the abdomen, face (moon face), and back of neck (buffalo hump); severe muscle weakness; diabetes; high blood pressure; immune suppression; depression and mood instability; skin thinning and easy bruising; stretch marks; and poor wound healing. These symptoms cause significant morbidity on top of the cancer itself.

What is adrenal crisis and why is it dangerous for ACC patients?

Adrenal crisis is a life-threatening medical emergency caused by cortisol deficiency. ACC patients on mitotane have adrenal suppression and rely on cortisol replacement therapy. If they become acutely ill and cannot take medications, or if their cortisol replacement is inadequate during physiological stress, cortisol levels can drop dangerously low, causing severe hypotension, vomiting, confusion, and potentially death. Patients, families, and hospice teams need emergency protocols.

What is mitotane and why do ACC patients need it?

Mitotane (Lysodren) is the primary drug treatment for ACC. It has both direct adrenal-toxic effects (destroying adrenal cells, including tumor cells) and cytostatic effects. It is used both as adjuvant therapy after surgery and for advanced disease. Side effects include severe nausea, neurological effects (cognitive changes, dizziness), and adrenal suppression requiring cortisol replacement. It must be continued throughout treatment and often until end of life.

Where can ACC patients find support and information?

Given ACC's extreme rarity, specialized resources are limited. The ENSAT (European Network for the Study of Adrenal Tumors) and adrenal tumor programs at major cancer centers (MD Anderson, NIH, Mayo Clinic) provide the most expertise. The Adrenal Cancer Research Fund and rare endocrine tumor organizations provide patient community. Online ACC support groups on Facebook and Reddit connect patients globally.

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