What is a Diascopy test?

Diascopy is used to determine whether erythema in a lesion is due to blood within superficial vessels (inflammatory or vascular lesions) or is due to hemorrhage (petechiae or purpura). A microscope slide is pressed against a lesion (diascopy) to see whether it blanches.

What type of lesions blanch?

Blanching is usually the primary indicator of an impending ulcer formation. Erythema represents redness on the skin that can be blanched. It can be seen in a variety of inflammatory skin disorders. Blood vessels on the skin, such as vascular lesions like spider veins, are blanchable.

How do you do Diascopy?

Diascopy is a simple procedure which does not require complicated equipment. It involves the application of firm pressure of a hard, transparent instrument like a plastic spatula or clean glass slide or two microscopic slides, which is pressed onto the surface of the lesion gently to produce temporary blanching.

What can a skin scraping diagnose?

Skin Scraping

• It enables both the full thickness of the epidermis and the contents of the hair follicles to be sampled.
• It is most commonly used in the diagnosis of parasitic infestations such as sarcoptic mange, cheyletiellosis and demodicosis.
• Generally several sites are sampled.

What kind of tests are done to diagnose MS?

To help eliminate potential causes of symptoms, your doctor may order some preliminary blood tests to rule out conditions such as vitamin B12 deficiency, lupus, autoimmune disease, Lyme disease, syphilis, or HIV. If the results come back normal, your doctor may then order an MRI of the brain and/or spinal cord.

Can a person be misdiagnosed with multiple sclerosis?

As many as 10 percent of people diagnosed with multiple sclerosis actually have some other condition that mimics MS. Examples of other conditions that masquerade as MS include inflammation in the blood vessels, multiple strokes, vitamin deficiency, and brain infection. Sometimes stress-related disorders can lead to a misdiagnosis of MS.

What do you need to know about diascopy?

What is Diascopy? Diascopy is the medical diagnostic test for blanchability within the skin in order to determine if a rash or lession is vascular in nature (meaning that it inflammatory) or non-vascular (nevus) in nature or haemorrhagic (such as the petechial or purpura rash assocaited with meningococcal disease).

How long does it take to be diagnosed with MS?

Being diagnosed with multiple sclerosis (MS) is a multi-step process that can take anywhere from days to years. Unfortunately, MS is not a condition where you walk into your primary care doctor’s office because of unusual symptoms, and you walk out of the office with a definitive diagnosis.