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The sympathetic pathways of the collateral ganglia and adrenal medulla serve unique but interconnected roles in the sympathetic response.
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The intricate framework of the endocrine system encompasses a diverse array of glands, with their target tissues and organs strategically distributed throughout the body. Central to this network are the endocrine glands, specialized structures that lack ducts and release hormones directly into the interstitial fluid. Notably, the hypothalamus, a vital neuroendocrine organ situated in the brain, governs neural functions and serves as a potent source of hormonal regulation. Near the hypothalamus...
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Related Experiment Video

Updated: Nov 15, 2025

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[Neuroendorine paraneoplastic syndromes].

M Böhm1, R Gellner2

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Summary

Neuroendocrine paraneoplastic syndromes (PNS) often manifest with distinct skin changes, aiding early diagnosis. This review details these cutaneous signs, their mechanisms, and management strategies for better patient care.

Keywords:
AcromegalyCarcinoidCushing syndromeGlucagonomaVirilization

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Area of Science:

  • Endocrinology
  • Dermatology
  • Oncology

Background:

  • Neuroendocrine paraneoplastic syndromes (PNS) frequently involve the skin due to hormone receptor expression.
  • Cutaneous manifestations can serve as early indicators of underlying neuroendocrine tumors.

Purpose of the Study:

  • To review the clinical features, pathophysiology, and diagnostic/therapeutic approaches for neuroendocrine PNS with skin involvement.
  • To highlight the importance of an interdisciplinary approach in managing these complex cases.

Main Methods:

  • Literature review of clinical features and pathophysiology of neuroendocrine PNS affecting the skin.
  • Summary of diagnostic steps and therapeutic options.
  • Discussion of differential diagnoses for skin manifestations.

Main Results:

  • Specific skin signs associated with acromegaly (cutis verticis gyrata), Cushing syndrome (striae distensae), carcinoid tumors (flushing), serotonin-secreting tumors (fibrosis), androgen-secreting tumors (acne, hirsutism), and glucagonoma (necrolytic migratory erythema) are described.
  • Pathophysiology, including hormonal and receptor-mediated mechanisms, is elucidated.
  • Differential diagnoses and diagnostic pathways are outlined.

Conclusions:

  • Skin manifestations are crucial for the early detection of neuroendocrine PNS.
  • Understanding the pathophysiology guides diagnosis and treatment.
  • Effective management requires a collaborative, interdisciplinary approach.