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Annular lesion of the lung in sarcoidosis.
  1. H Tada,
  2. R Yasumizu,
  3. S Yuasa,
  4. M Sato,
  5. Y Mizuno
  1. Section of Internal Medicine, Himeji Red Cross Hospital, Japan.


    A 20 year old man presented with eight thin walled, ring shaped shadows, 1-3 cm in diameter, on a chest radiograph. Pulmonary sarcoidosis was diagnosed on the basis of histopathological examination of a cervical lymph node, transbronchial lung biopsy, and increased activity of angiotensin converting enzyme and lysozyme in serum. The lesions disappeared within six months of his starting corticosteroid treatment.

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