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Self-involuting atrophoderma of the lateral-upper arm. A new benign variant of morphea?
T Inazumi1, J Kawashima, S Tajima
1Department of Dermatology, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
Background:
Atrophoderma of Pasini-Pierini and morphea are considered to be distinct clinical entities. However, some authors say that they are closely related diseases. We encountered 5 unique cases that did not fit the criteria for both diseases.
Objective And Methods:
We report 5 cases with solitary atrophic lesions on the lateral-upper arm. They appeared as white to erythematous, non-indurated and slightly depressed lesions with a smooth surface, and the patients had no history of trauma or injection.
Results:
Histological examinations showed slight to moderate lower dermal fibrosis without specific changes in adipose tissue. The lesions disappeared spontaneously within a year.
Conclusion:
Our cases may be a benign variant form of morphea. We propose the term 'self-involuting atrophoderma of the lateral-upper arm (SALA)' for these clinical features.