Nelson syndrome: historical perspectives and current concepts.

Area of Science:

• Endocrinology
• Neuroendocrinology
• Oncology

Background:

• Nelson syndrome, characterized by hyperpigmentation and a sellar mass, arises after bilateral adrenalectomy for Cushing disease.
• Historically, adrenalectomy was the primary treatment for Cushing disease, leading to the initial descriptions of Nelson syndrome.
• The syndrome presents with increased plasma ACTH levels and is associated with ACTH-producing tumors.

Discussion:

• Modern diagnostic tools like high-resolution neuroimaging have altered the detection of Nelson syndrome.
• Advances in surgical and radiation therapies for pituitary and adrenal disorders have impacted the incidence and presentation of Nelson syndrome.
• The rarity of Nelson syndrome in the current era necessitates a reevaluation of its diagnostic and therapeutic paradigms.

Key Insights:

• Nelson syndrome's occurrence, diagnosis, and treatment have been profoundly influenced by evolving medical practices.
• The advent of transsphenoidal microneurosurgery and stereotactic radiosurgery has made Nelson syndrome a less frequent clinical entity.
• A contemporary reevaluation of Nelson syndrome is crucial for adopting a modern management approach.

Outlook:

• Future research should focus on refining diagnostic criteria and treatment strategies for Nelson syndrome in the context of current medical capabilities.
• Developing a modern paradigm for Nelson syndrome management is essential given its changing clinical landscape.
• Continued investigation into the long-term outcomes and optimal management of Nelson syndrome is warranted.