The histologic structure of keloid is generally considered to be similar whether the keloid follows an injury or arises spontaneously. Two cases are reported here in which the clinical appearances were those of keloid and no history of trauma could be obtained. The histologic features were quite unlike those of any condition familiar to us and were not reminiscent of keloid as it is normally understood. However, it appeared as if a subsidiary and variable feature of keloid structure had become so predominant as to alter the microscopic picture completely. REPORT OF CASES Case 1.—W. T., a 56-year-old East Indian man, had been a resident of the United States since he was 26 years of age. His medical history was negative, except for pulmonary tuberculosis, which had developed when he was 36 years old and had been inactive since the age of 45. The skin lesion in