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Related Concept Videos

Cushing Syndrome II: Pathophysiology01:19

Cushing Syndrome II: Pathophysiology

Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
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Cushing Syndrome I: Introduction

Cushing syndrome refers to the collection of clinical manifestations that arise when tissues are exposed to excessive amounts of cortisol or cortisol-like medications over an extended period. Cortisol, a glucocorticoid produced by the adrenal cortex, regulates metabolism, immune responses, and the body’s adaptation to stress. When its concentration remains chronically elevated, these physiological pathways become dysregulated, resulting in the characteristic features of the syndrome.Exogenous...
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Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
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Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
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Published on: February 3, 2012

Cowden syndrome.

A Farooq1, L J Walker, J Bowling

  • 1Department of General Surgery, St. Helens and Knowsley Teaching Hospitals, Warrington Road, Prescott L35 5DR, UK. afarooq@nhs.net

Cancer Treatment Reviews
|June 29, 2010
PubMed
Summary
This summary is machine-generated.

Cowden syndrome (CS) is a rare genetic disorder causing multiple growths and increasing cancer risk, particularly in the breast, thyroid, and endometrium. Early recognition and genetic testing are vital for patient management and family screening.

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Area of Science:

  • Genetics
  • Oncology
  • Medical Syndromes

Background:

  • Cowden syndrome (CS) is a rare autosomal dominant inherited disorder.
  • Characterized by multiple hamartomas affecting various tissues derived from all three embryonic germ layers.
  • CS is a cancer predisposition syndrome with elevated risks for malignancies, especially in the breast, thyroid, and endometrium.

Purpose of the Study:

  • To provide a comprehensive review of Cowden syndrome.
  • Emphasize diagnostic criteria, clinical manifestations, genetic basis, and management strategies.
  • Highlight the importance of early recognition for screening and genetic testing.

Main Methods:

  • Literature review of Cowden syndrome.
  • Analysis of diagnostic criteria and clinical features.
  • Review of genetic mutations, particularly in the PTEN gene.
  • Discussion of current management and surveillance protocols.

Main Results:

  • Cowden syndrome presents with non-specific signs and symptoms, complicating diagnosis.
  • Germline mutations in the PTEN tumor suppressor gene are identified in approximately 80% of patients.
  • Increased risk of malignancies necessitates vigilant screening and surveillance.

Conclusions:

  • Early identification of Cowden syndrome is crucial for timely cancer screening and intervention.
  • Genetic testing plays a key role in diagnosis and family counseling.
  • A multidisciplinary approach to management and surveillance improves patient outcomes.