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Doctor insights on: Causes Of Induration

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Ive been on steroid eye gtts for 3-4 wks, could this cause a false positive ppd? Area currently slight red, no induration approx 36 hrs since test

Ive been on steroid eye gtts for 3-4 wks, could this cause a false positive ppd? 
Area currently slight red, no induration approx 36 hrs since test

No: Steroids would tend to cause a falsely negative PPD. However, please have your PPD read by your doctor's office. Usually a positive PPD is measured in terms of induration. ...Read more

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What is the result of mantoux test if it shows induration is 18mm and it is red?

What is the result of mantoux test if it shows induration is 18mm and it is red?

Exposure to TB: What you have described meets the criteria for a positive mantoux test result. A positive result means that the person has been exposed to tuberculosis. It does not mean that the person has tb, just that at one time the person was infected with the TB microorganism. ...Read more

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How difficult must an induration be to be considered positive TB test?

How difficult must an induration be to be considered positive TB test?

PPD: It is not about hardness of the induration it is about the size of the area of induration. It is harder than surrounding skin. ...Read more

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My mantoux test result is "erythema & induration present diameter 10 mm. What is the interpretation?

Exposure to TB: What you have described meets the criteria for a positive mantoux test result. A positive result means that the person has been exposed to tuberculosis. It does not mean that the person has tb, just that at one time the person was infected with the TB microorganism. ...Read more

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Why some patients who have medical conditions eg. Diabetes, malignancy, when they do tuberculin skin test the result shows > 10mm induration positive?

Why some patients who have medical conditions eg. Diabetes, malignancy, when they do tuberculin skin test the result shows > 10mm induration positive?

Positive PPD: Positive PPD means prior exposure to mycobacterium tuberculosis. It is sort of a screening test. Patients with a weakened immune system such as cancer patients, diabetics are more prone to getting TB if they have the exposure but without the active disease, they will not be PPD positive. Pts who get vaccinated with bcg vaccine, prior exposure, organ transplants, hiv, steroid therapy cn make test+. ...Read more

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Is it normal to have induration just below earflap and 2 cm above the mandibular angle between ramus of the mandible and sternocleidomastoid muscle?

Is it normal to have induration just below earflap and 2 cm above the mandibular angle between ramus of the mandible and sternocleidomastoid muscle?

Not normal: Induration is never a normal finding. When tissue becomes inflamed either from an infectious or non infectious source, hormones are released in the local area that result in a series of events causing redness, warmth, pain, and swelling as the capillaries in the area become more "leaky" causing induration. The area you describe has many different potential causes. See your doctor immediately. ...Read more

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Ent:"mucosa abnormal, l inferior turbinate and floor of nose w/firm hard white induration.Quite remarkable.Pale edema of septum" what does that mean?

Ent:"mucosa abnormal, l inferior turbinate and floor of nose w/firm hard white induration.Quite remarkable.Pale edema of septum" what does that mean?

Hard to say: Each specialty looks at the interior of the nose differently. Was this an ENT or family doc? None of the findings are suggestive of a particular disorder or disease state. It may be as simple and dry membranes. See an ENT or get another opinion. ...Read more