Incidental finding of skin deposits of corticosteroids without associated granulomatous inflammation: report of three cases.

ABSTRACT

Three cases are described in whom deposits of depot steroids were seen in skin biopsies done for diagnostic purposes. In the first case the skin lesion was clinically suspected to be due to the steroid injected more than a year ago and a diagnosis of pseudo-morphea due to steroid injection was made by the clinician. The other cases had clinical diagnoses of dermatofibroma and morphea with no clinical suspicion of previous steroid injection. The steroid deposits were present in the subcutaneous fat in all three cases. Histologically the findings were distinctive with collections of acellular, amorphous, fuzzy basophilic material surrounded by lipophages and disrupted adipocytes (in Case 2) and without any significant inflammatory infiltrate or granulomatous reaction (in Cases 1 and 3). The absence of inflammatory and granulomatous responses were the findings at variance with the cases described earlier in the literature.