Unexplained Skin Darkening Leads to Life-Saving Addison's Disease Diagnosis in 24-Year-Old Woman
核心洞察
A 24-year-old woman with two years of progressive skin darkening on her hands, feet, gums, and tongue was ultimately diagnosed with Addison's disease (搜索) caused by adrenal tuberculosis (搜索).
Laboratory findings revealed abnormally low cortisol and drastically elevated adrenocorticotropic hormone (ACTH), with CT-confirmed adrenal calcification and a positive tuberculosis (搜索) test.
Treatment with prednisone and anti-tuberculosis (搜索) medications led to complete symptom resolution and significant fading of hyperpigmentation within six months.
A 24-year-old woman who experienced two years of unexplained darkening of her hands, feet, gums, and tongue was ultimately diagnosed with a rare and potentially fatal endocrine disorder after her skin changes were initially dismissed as a cosmetic concern. The case, published on June 4, 2026, in the journal Skin under the title "Hyperpigmentation: Initial Sign of Addison's Disease (搜索)," illustrates how cutaneous manifestations can serve as the earliest warning sign of life-threatening systemic illness.
The patient's hyperpigmentation was accompanied by fatigue, irritability, poor appetite, and a 2.5 kg weight loss over six months. Laboratory investigations revealed abnormally low cortisol levels alongside drastically elevated adrenocorticotropic hormone (ACTH). Further diagnostic workup, including a positive tuberculosis (搜索) test and CT imaging demonstrating adrenal calcification, confirmed the diagnosis of Addison's disease (搜索) secondary to adrenal tuberculosis.
Clinical Presentation and Diagnostic Pathway
Addison's disease (搜索), or primary adrenal insufficiency, occurs when the adrenal glands fail to produce adequate amounts of cortisol and often aldosterone. The elevated ACTH observed in this patient reflects the pituitary gland's compensatory response to low circulating cortisol. ACTH, as part of the pro-opiomelanocortin (POMC) precursor molecule, also stimulates melanocytes, leading to the characteristic hyperpigmentation that can manifest on sun-exposed areas, pressure points, and mucosal surfaces.
In this case, the distribution of pigmentation across the hands, feet, gums, and tongue aligned with the classic pattern of ACTH-driven melanogenesis. The identification of adrenal calcification on CT and a positive tuberculosis (搜索) test pointed to tuberculous adrenalitis as the underlying etiology—a well-recognized but increasingly uncommon cause of Addison's disease (搜索).
Treatment and Outcome
Following diagnosis, the patient was initiated on prednisone to replace deficient glucocorticoids, along with a standard anti-tuberculosis (搜索) medication regimen. The response to treatment was robust: her systemic symptoms resolved completely, and the skin hyperpigmentation faded significantly over a six-month period.
Clinical Significance
The authors of the report emphasize that Addison's disease (搜索) can be fatal if undiagnosed, as patients remain at risk for life-threatening adrenal crisis—a medical emergency characterized by hemodynamic collapse, electrolyte disturbances, and altered mental status. This case underscores the vital role of dermatologists and primary care clinicians in recognizing that seemingly benign skin changes may herald serious underlying endocrine pathology.
The publication serves as a reminder that hyperpigmentation, particularly when accompanied by constitutional symptoms such as fatigue, weight loss, and gastrointestinal complaints, should prompt evaluation for adrenal insufficiency. Early recognition and appropriate treatment can be life-saving.