Eccrine Poroma

Eccrine Poroma

“…In the original report, for example, it was emphasized th at melanin was not seen, th a t tonofibrils were absent, keratin cysts were rare, and th a t the tum or cells consistently dem onstrated glycogen. Subsequently melanin has been noted in Negro [17] and Japanese [27] patients, tonofibrils have been seen [27], and keratin cysts have been observed by other authors [9,11,22,28] as well as in one case of the present series. A bundant glycogen has been noted in most tum ors, but its distribution and intensity have varied.…”

“…All of our cases were of the white race, but eccrine poroma has been described in Negro [9,10,17,20,21,25], Japanese [27], Mexican [25], and Mestizo [22] patients. Cases have been reported from France [1,3,6,7], England [12,15], Belgium [8], Australia [14], Venezuela [21], Portugal [2], Japan [27], and Colombia [22].…”

Diagnostic features of a non‐pigmented eccrine poroma with a collarette: Histopathological and dermoscopic correlation

“…Poroma was first reported in 1956 3 and with epithelial invagination in 1958. 4 However, the correlations between dermoscopic findings of poroma and the pathological findings remain poorly characterized. In 2018, dermoscopic findings showed white interlacing areas around vessels, yellow structureless areas, milky-red globules, poorly visualized vessels, and branched vessels with rounded endings.…”

“…Poroma was first reported in 1956 3 and with epithelial invagination in 1958 4 . However, the correlations between dermoscopic findings of poroma and the pathological findings remain poorly characterized.…”

Eccrine Poroma of the Sole

“…tumours derived from the intra-epidermal portion of the sweat duct. Knox & Spiller (1958) drew attention to the 'shallow, cup-shaped, epidermal invagination from which the tumours protruded' although in my experience this appearance is not peculiar to such lesions on the sole. In this country, analogous cases have been reported by Hunter & Hellier (1960).…”