A case is discussed in which progressive systemic sclerosis and malignant atrophic papulosis occurred in the same patient. The coincidental occurrence of the two diseases is possible but statistically improbable. Attention is drawn to the similarity of histological blood vessel changes in the two diseases. It is suggested that an immunological abnormality may be the common denominator in etiology or pathogenesis.
Durie BGM, Stroud JD, Kahn JA. Progressive Systemic Sclerosis With Malignant Atrophic Papulosis. Arch Dermatol. 1969;100(5):575-581. doi:10.1001/archderm.1969.01610290059012