Fibrous histiocytoma developing at the site of tuberculin skin test

Primary malignant fibrous histiocytoma of skin.

Three fibrous histiocytomas, primary in skin, were studied by light and electron microscopy and by frozen section histochemistry. The term malignant was applied to cutaneous tumors which demonstrated aggressive multinodular local growth, including angioinvasion and/or extension into bone, muscle, and fascia. Metastases were not found. Strongly positive reactions for hydrolytic enzymes, particul...

Evalution of Tuberculin Skin Test Four Months after BCG Vaccination at Birth

Misreading of the tuberculin skin test.

this hypothesis would need to be tested in a prospective trial. How long had nifedipine been discontinued in the authors' patient prior to repeat cardiac catheterization? How long has the patient's exercise tolerance remained dramatically improved since the discontinuation of vasodilators?

measurement of tuberculin skin test

current guidelines suggest that the ppd mantoux tuberculin test should be read after 48 or 72 hours. we have compared the measurements at these time points. a 5-tuberculin unit (tu) ppd mantoux test was administered to 100 subjects (91% with bacillus calmette- guerin scars). induration was measured 48 and 72 hours following the injection. results the measurements made at 72nd hour were signific...

BCG vaccination and the tuberculin skin test

The immune response induced by vaccination with Bacille Calmette-Guérin (BCG) is not fully understood, and the interpretation of the tuberculin skin test (TST) is still under debate. This thesis was based on questions raised while implementing protective measures for healthcare workers and others at risk of exposure to tuberculosis (TB) in Sweden, a country where the prevalence of TB is low. Th...