Facial lipogranulomas due to self-injection of Vitamin A (cas 11103-57-4) oil

Add time:07/18/2019    Source:sciencedirect.com

Lipogranulomas represent foreign body reactions to exogenous lipid or oil-like substances introduced into the skin. These lesions characteristically have round-to-ovoid, vacuole-like cavities of varying sizes in the dermis, which results in a Swiss cheese-like appearance. We present the case of a 51-year-old Hispanic woman with an onset of painful, swollen, subcutaneous nodules on the face, most prominently on the right lower lip and both cheeks, after multiple self-injections of Vitamin A (cas 11103-57-4) oil. Histopathology test results of the lower lip showed a superficial-to-deep, nodular and interstitial, polymorphous inflammatory infiltrate of predominantly histiocytes with necrobiotic-type granulomatous changes, lymphocytes, and plasma cells. The cheek revealed deep dermal and subcutaneous small collections of foamy/vacuolated histiocytes, without significant numbers of other inflammatory cells. Given the patient’s history of injecting oil extracted from vitamin A capsules into her skin, the light microscopic features are consistent with lipogranulomatous changes that are secondary to a local injection of foreign material. Clinicians and pathologists should be aware of the granulomatous immune reaction generated by the injection of unregulated products into the face and other areas of the body.

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