Related Experiment Video
Updated: May 7, 2026

05:31
Transradial Access Chemoembolization for Hepatocellular Carcinoma Patients
Published on: September 20, 2020
5.5K
Angiokeratomas - When is a few too many?
Colm O'Mahony1, Andrea Franks, Rhiannon Llewellyn
1Department of Sexual Health & HIV, Countess of Chester Hospital, Chester, UK.
International Journal of STD & AIDS
|October 10, 2013
Summary
A few angiokeratoma are normal, but numerous lesions may indicate Fabry disease. Genetic screening and family history are crucial for diagnosis when lesions are widespread.
Area of Science:
- Dermatology
- Genetics
- Vascular Medicine
Background:
- Angiokeratoma are benign vascular lesions that can appear on the skin.
- Their presence can sometimes be associated with underlying systemic conditions.
Observation:
- Many individuals present with a small number of scattered angiokeratoma.
- A higher density or numerous angiokeratoma lesions warrant further medical investigation.
Findings:
- The occurrence of numerous angiokeratoma should raise suspicion for Fabry disease, a rare genetic disorder.
- Checking the family history is an essential step in evaluating potential cases.
Implications:
- Early consideration of Fabry disease based on skin findings can lead to timely diagnosis and management.
- This highlights the importance of dermatological examination in identifying potential genetic conditions.
Related Concept Videos
Spare Receptors
5.0K
Some receptors remain unoccupied even when an agonist produces a maximal response. Such empty ones are called spare receptors. In presence of spare receptors the maximum effect of an agonist drug is achieved with fewer than 100% of the receptors being occupied. To determine the presence of spare receptors, scientists often compare the concentration of the drug needed to produce 50% of the maximum effect (EC50) with the concentration of the drug needed to occupy 50% of the receptors (Kd). If the...
5.0K
Cirrhosis I: Introduction
32
Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
32
Regulation of Angiogenesis and Blood Supply
2.9K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.9K
Angina II: Classification
714
Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
714
Healing II: Complications
39
Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
39

