Scar sarcoidosis after hyaluronic acid injection.

Author: Dal Sacco D, Cozzani E, Parodi A, Rebora A

Author affiliation: DiSEM, Section of Dermatology, University of Genoa, 16132 Genoa, Italy.

Publication date & source: 2005.05, Int J Dermatol., 44(5):411-2.

Publication type: Case Reports

A 54-year-old woman presented with a 5-month history of tender nodules in both nasolabial folds that had developed 4 months after the injection of hyaluronic acid (HA) (Restylane) for wrinkles. The patient was treated with 1.5 mg/day betamethasone for 6 days and her lesions disappeared within 1 week. About 8 days after stopping therapy, however, new nodules developed at the same site, on previously healthy buttocks, and on old scars. On examination, nodules of about 0.5-1 cm in size were palpable at the nasolabial folds, and red nodules were present on the buttocks (Fig. 1) and on two old scars. Laboratory tests disclosed an increased protein C reaction (7.9 mg/L; normal value, < 5 mg/L) and acetyl-converting enzyme test (14.5 U/L; normal value, < 9 U/L). A chest X-ray was normal. Lung function tests showed a decreased lung CO diffusion, and chest axial tomography disclosed fibrosis, increased parenchyma density, and calcifications, findings suggestive of a diagnosis of lung sarcoidosis. An X-ray of the hands showed some bone cysts. Interestingly, two granulomatous lesions were observed at the sites of venipuncture. Histology of a gluteal lesion biopsy showed a deep granuloma with epithelioid and Langhans cells in the absence of necrobiosis. Sarcoidosis was diagnosed and the patient was given 50 mg/day prednisone with clear clinical improvement of cutaneous lesions in about 6 months. Decreased parenchyma density was also observed by chest axial tomography.

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