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Pigmented villonodular synovitis in multiple joints. Occurrence in a child with cavernous haemangioma of lip and pulmonary stenosis.
  1. J Leszczynski,,
  2. J R Huckell,
  3. J S Percy,
  4. J C LeRiche,
  5. B C Lentle

    Abstract

    A case is presented of pigmented villonodular synovitis involving three joints in a 7-year-old girl. The diagnosis was confirmed at surgery and by histology. The patient also exhibited a haemangioma of the upper lip and a congenital pulmonary stenosis of mild degree. Subtotal synovectomy of the right knee and of both ankles was performed. The lesion recurred in both ankles after 6 months. Review of the literature failed to reveal any previous report of multiple joint involvement by pigmented villonodular synovitis in childhood and it appears that simultaneous involvement of three joints has not previously been described. Scintiscanning with 99mTc stannous pyrophosphate showed increased vascularity of the involved joints immediately after injection, but no increased osteoblastic activity was seen on the delayed scan. This radionuclide scanning technique is therefore helpful in distinguishing pigmented villonodular synovitis from other arthropathies.

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