In 1901, under the title "A Peculiar Progressive Pigmentary Disease of the Skin," Schamberg first described the dermatosis which now bears his name. His description was so vivid and complete that later contributors have added but little to it. His article was illustrated with a clinical photograph and a photomicrograph showing the microscopic changes.
The cases reported herein are the third and fourth reported in America and the fifteenth and sixteenth in the world's literature. This would indicate that the condition is rare, overlooked or not deemed worthy of report.
Little can be added to Schamberg's original description.... a disease which begins as pinhead, reddish puncta or dots, forming irregular patches, which slowly extend by the formation of new lesions upon the periphery. The puncta, in the course of time, disappear leaving a brownish-yellow or reddish-brown pigmentation, which slowly fades. The process is so slow upon some regions...
TEMPLETON HJ. PROGRESSIVE PIGMENTARY DERMATOSIS (SCHAMBERG): WITH REVIEW OF LITERATURE, REPORT OF TWO CASES AND COMPARISON WITH ANGIOMA SERPIGINOSUM AND PURPURA ANNULARIS TELANGIECTODES. Arch Derm Syphilol. 1927;16(2):141–152. doi:10.1001/archderm.1927.02380020013002
Coronavirus Resource Center
Customize your JAMA Network experience by selecting one or more topics from the list below.