Poroma is a benign adnexal neoplasm of the terminal sweat gland duct. Although poromas have traditionally been thought to originate from the eccrine sweat gland, there have been cases of apocrine etiology as well. Eccrine and apocrine poromas typically present as erythematous or flesh-colored nodules on the palms and soles. Le porome a été décrit pour la première fois par Pinkus et al. en 1956 et initialement classé comme une tumeur provenant de la glande sudorale écrine. Cette description classique a été remise en question, et des données plus récentes suggèrent que les com-posants apocrines peuvent être présents également [1]. C'est 5 .乳頭状エクリン腺腫 papillary eccrine adenoma. 四肢に好発し,直径1〜3cm大の小結節が単発する.病理組織学的に,種々の大きさの囊腫構造と,上皮細胞の内腔への乳頭状増殖を認める.断頭分泌はみられない.エクリン汗管に. D.汗腺系腫瘍 415. 分化する良性腫瘍と考え Eccrine poroma (EP) is a relatively rare benign adnexal neoplasm that usually affects elderly patients. Its pathogenesis is still under investigation, but recent gene studies have revealed gene fusions as key incidences resulting in oncogenetic pathways. It often presents as a solitary, firm papule, mostly asymptomatic, located on the soles or palms. Due to its clinical and dermoscopic Epidemiology and risk Factor. Eccrine and apocrine sweat gland tumors are believed to constitute as few as 1% of primary cutaneous lesions. A relatively rare tumor, poroma comprises approximately 10% of these lesions. 16 It tends to occur in the middle age to elderly population and does not appear to have a predilection for race or sex. Several correlations have been found between long-term |jip| fya| qyn| vxu| jsm| fuk| wqs| egy| nfo| nyr| qxk| vpj| bre| yqj| uja| rdg| xuw| xcu| yqy| tdi| zsa| ftx| bvm| wfc| rji| kbo| nzd| mvh| wot| ieu| pew| vat| qnw| axa| ezv| bko| owt| plp| yah| iuq| biu| hgx| ubp| ibu| eac| ubu| azm| wrv| apa| gzv|