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Ectopic adrenocorticotrophic hormone syndrome. A case report
Summary
Excessive adrenocorticotrophic hormone (ACTH) production by lung tumors can cause Cushing's syndrome. This article details two rare cases of florid Cushing's syndrome linked to oat cell carcinoma.
Area of Science:
- Endocrinology
- Oncology
- Pulmonology
Background:
- Adrenocorticotrophic hormone (ACTH) hypersecretion is a known complication of certain lung cancers, including oat cell carcinoma and carcinoid tumors.
- Cushing's syndrome, characterized by excessive cortisol levels, can result from ectopic ACTH production.
- Florid Cushing's syndrome, a severe manifestation, is infrequently associated with these pulmonary neoplasms.
Observation:
- This report presents two distinct cases of patients with oat cell carcinoma.
- Both patients exhibited symptoms consistent with florid Cushing's syndrome.
Findings:
- The oat cell carcinomas in both cases were identified as the source of excessive ACTH production.
- The clinical presentation in both patients was that of severe, overt Cushing's syndrome.
Implications:
- Highlights the rare but severe endocrine complications of oat cell carcinoma.
- Underscores the importance of considering ectopic ACTH syndrome in patients with lung cancer and Cushingoid features.
- Contributes to the understanding of the clinical spectrum of neuroendocrine tumors of the lung.