The 209 th Meeting of the Nagasaki Regional Society of the Japanese Dermatological Association was held on 24 th April 1977 in honor of Prof. Dr. M. Nogita who retired a month ago from the office of director of the Dermatological University Clinic, Nagasaki. This is a recollection and supplementary remarks on acropigmentatio reticularis which I made at this Meeting. It has been 34 years since we found in Nagasaki the first case of this disease and published it in 1943 as a kind of symmetric acral dyschromatosis. Acropigmentatio reticularis is now seen at times in Japan. Consisting of small, slightly sunken, uniformly brown macules which appear along furrows of the skin surface and inlaid with smallest, not pigmented, not depressed, normal skin areas, it forms a peculiar pigmentary network mainly on the external surfaces of the distal parts of extremities. Its existence universally in the world was first confirmed 1976 by Griffiths who found it in Iranians, Englishmen and negros. Histologically, besides atrophy of the epidermis and epidermal melanin deposition hitherto mentioned, Griffiths saw an increase in the number of clear cells in the basal region of the epidermis and no evidence of pigmentary incontinence in the upper dermis. According to Griffiths acropigmentatio symmetrica of Dohi, an another characteristic acral pigmentation seen in Japan, has also been recognized in 1952 by Gartmann and in 1964 by Siemens in Europians. However, the descriptions and photographs in the originals of both authors give us the impression that their cases are somewhat different from the prototype of Dohi's as well as of Kitamura's acropigmentation. In this respect Toyama told us once his opinion that among the Japanese with moderately dark skin there are various pigmentary disorders which can not be found or are disregarded in the whites and negros. From the theoretical point of view it should be said that all these pigment anomalies, especially as hereditary diseases, can occur in the whites, negros and any other races in the same way as in the Japanese.
A statistical survey on 100 cases of sporotrichosis at the Dermatological Clinic of Chiba University Hospital from May, 1965 to June, 1975 was reported. The proportion of sporotrichosis to the total number of outpatients and to the total dermatomycoses was 0.14 % and 1.8%. It has gradually increased since 1969. A higher percentage of patients was distributed in the patients less than 11 years old and more than 40 years old. Females were more affected than males. Half of the cases occured in farmers. Geographic distribution was remarkable. 44 cases had a history of injury. 62 cases showed the cutaneous lymphatic type and 38 cases showed the localized cutaneous type. The face and upper extremities were most affected. The sporotrichin test was positive in 41 of 42 cases. The causative organism in section of tissue was demonstrated in 97 of 99 cases.
By clinical and statistical analyses of the patients of melanosis faciei feminae observed at the dermatological clinic of Yamaguchi University Hospital for 10 years, from 1964 to 1973, the following results were obtained: 1) the outpatients observed in this period were 29,440 in number and comprised 191 cases of melanosis faciei feminae (0.6%); 2) the number of cases as well as the incidence rates of this disease per year showed a small peak at 1966 and a higher peak at 1972; 3) the number of cases per month was large in May, April, June, March and October in the order of decreasing frequency, and small in November and December; 4) the cases as well as the incidence rates of this disease at the age decade were found positively from the third decade, and increased in number rapidly at the fourth decade, reaching the highest peak at the fifth decade; 5) of 39 patients who had been tested by patching various cosmetics, 25 cases (64.1%) were positive; 6) make-up cosmetics were mostly patch-tested and creams, beauty washes and cosmetic emulsions followed them in the order of decreasing frequency, and cosmetic emulsions, make-up cosmetics, beauty washes and creams were most frequently found positive by patch testing in the order of decreasing frequency.