An 18 year old female marathon runner develops an itchy rash.

Discussion in 'Plab 1 and 2 forum' started by Neha Gupta, May 28, 2013.

  1. Neha Gupta

    Neha Gupta Active Member

    An 18 year old female marathon runner develops an itchy rash. Jogging or bathing in hot water causes the rash to temporarily worsen. On inspection there are 1-2 centimeter sized oval spots, somewhat pink to red, with a little scaling. They are located on the trunk in the folds of the skin. There is sparing of the face, palms or soles. She is not given any specific treatment and the rash resolves itself at ten weeks A likely cause of this rash is:

    a) atopic eczema

    b) Pityriasis rosea

    c) lichen planus

    d) parvovirus infection

    e) Human papilloma Virus

    f) Herpes simplex virus

    g) uraemia

    h) psoriasis

    i) urticaria

    j) dermatitis herpetiformis
  2. Neha Gupta

    Neha Gupta Active Member

    ANSWER IS B


    Pityriasis rosea is a common, harmless skin rash that can last from several weeks to several months. The cause is not known, although it may be due to an as yet unidentified virus. It is not caused by a fungus or bacterial infection. Pityriasis rosea is not contagious and usually resolves itself between six to ten weeks. Who gets pityriasis rosea? Mainly young people, especially young adults. It generally affects people between the ages of 10 and 35 years although it can occur at any age. It is 50 per cent more common in females than males. What are the symptoms? Initially a large, single pink patch of skin on the chest or back. This is followed several days later by a rash of smaller pink patches over the trunk and, to a lesser degree, over the skin of the arms and legs. Patches may also occur on the neck and, rarely, on the face. Itching (usually mild) Skin redness or inflammation This condition often starts with a large, single pink patch which is scaly and is called a \'herald\' patch. Sometimes a person will think the patch is ringworm because of its appearance. The rash that occurs later often forms a pattern over the back resembling the outline of an evergreen tree with drooping branches. Sometimes there may be a more severe skin reaction. About half the people with this disease will experience some itching which can be severe, especially if they become overheated. Occasionally there may be other symptoms, including tiredness and aching. The rash usually disappears within six weeks but can last much longer. Physical activity, such as jogging or running, or bathing in hot water may cause the rash to temporarily worsen or reappear. In some cases, the patches will reappear up to several weeks after the first episode. This may continue for many months. There are not normally any permanent marks as a result of this disease, although some darker-skinned people may develop long-lasting flat brown spots.

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