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Related Concept Videos

Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...
Complications of Diabetes Mellitus01:22

Complications of Diabetes Mellitus

Diabetes mellitus is a chronic metabolic disorder characterized by persistent hyperglycemia due to insulin deficiency, resistance, or both. Prolonged hyperglycemia disrupts metabolic homeostasis and leads to acute and chronic complications.Acute ComplicationsAcute complications result from sudden metabolic imbalance.Diabetic ketoacidosis (DKA) mainly appears in type 1 diabetes but may also develop in type 2 diabetes, particularly under extreme stress. It arises from severe insulin deficiency,...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Type I Diabetes III: Clinical Manifestations01:19

Type I Diabetes III: Clinical Manifestations

Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
Pathophysiology of Diabetes01:20

Pathophysiology of Diabetes

Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...

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Related Experiment Videos

A tropical diabetic foot.

L Henckaerts1, R Naesens, E Vlieghe

  • 1Department of General Internal Medicine, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium. liesbet.henckaerts@gmail.com

Acta Clinica Belgica
|November 30, 2012
PubMed
Summary
This summary is machine-generated.

Eumycetoma, a fungal infection, can cause chronic diabetic foot wounds resistant to typical treatments. Early diagnosis via biopsy and PCR is crucial for effective management, especially in endemic areas.

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Area of Science:

  • Medical Mycology
  • Diabetic Foot Complications
  • Infectious Diseases

Background:

  • Diabetic foot infections are a significant cause of morbidity.
  • Chronic, non-healing foot wounds in diabetics warrant thorough investigation.
  • Eumycetoma is a rare fungal infection affecting the foot.

Observation:

  • A patient with type 2 diabetes presented with a chronic foot wound unresponsive to standard antibacterial therapy.
  • Histopathological examination of a bone biopsy was key to diagnosis.
  • Polymerase chain reaction (PCR) confirmed the presence of Madurella mycetomatis.

Findings:

  • The chronic foot wound was diagnosed as eumycetoma, a fungal osteomyelitis.
  • Diagnosis was confirmed through histopathology and molecular methods (PCR).
  • This case highlights an uncommon cause of diabetic foot osteomyelitis in Europe.

Implications:

  • Consider eumycetoma in diabetic patients with chronic foot osteomyelitis, particularly those from endemic regions.
  • Accurate diagnosis requires histopathology and potentially PCR, beyond standard bacterial cultures.
  • Timely and accurate diagnosis is essential for appropriate antifungal treatment and improved patient outcomes.