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Cushing Syndrome I: Introduction01:26

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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Nephrotic Syndrome I : Introduction

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Related Experiment Video

Updated: May 24, 2026

Prion Safety Laboratory Swipe Test
06:01

Prion Safety Laboratory Swipe Test

Published on: February 14, 2025

[Preiser's disease: a five-case series].

F El Kouhen1, A M Gay, F Chateau

  • 1Service de chirurgie plastique, hôpital d'Avignon, 84000 Avignon, France. faycal_elkouhen@hotmail.fr

Chirurgie De La Main
|February 28, 2012
PubMed
Summary
This summary is machine-generated.

Preiser's disease, a form of avascular necrosis of the scaphoid, presents with wrist pain and stiffness. Treatment options vary, with satisfactory pain improvement but potential residual stiffness, highlighting the need for management guidelines.

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Last Updated: May 24, 2026

Prion Safety Laboratory Swipe Test
06:01

Prion Safety Laboratory Swipe Test

Published on: February 14, 2025

Area of Science:

  • Orthopedics
  • Hand Surgery
  • Radiology

Background:

  • Preiser's disease is avascular necrosis of the scaphoid bone, distinct from fracture or non-union.
  • It presents with insidious onset of wrist pain, stiffness, and reduced grip strength.

Observation:

  • A case series of 5 patients diagnosed with Preiser's disease between 1998 and 2009.
  • Patients reported mild radial wrist pain, stiffness, and/or loss of strength.

Findings:

  • Management strategies included hyaluronic acid injections, vascularized radial bone grafts, and first carpal row resection.
  • A 4.5-year follow-up showed satisfactory pain improvement, though some patients experienced residual postoperative stiffness.

Implications:

  • The rarity of Preiser's disease and lack of prospective studies complicate management.
  • Developing an early management algorithm is crucial for determining optimal treatment and salvage timelines for the scaphoid.