Atypical localized giant apocrine hydrocystoma: Case report

Apokrin hidrokistomalar (kistadenomalar) apokrin kaynakli benin kistik yapilardir. Apokrin hidrokistomlar genellikle soliter lezyonlar seklinde olusur. Bununla birlikte nadiren multiple olabilirler. Lezyonlar siklikla bas ve boyun bolgesinde, ic epikantus ve goz kapaklari boyunca yerlesir. Bir apokrin hidrokistoma gelisimi icin uyaranlar tam olarak bilinmemektedir. Bu yazida apokrin kistadenom tanisi alan 66 yasinda bir bayan hasta sunuldu. Hastamizin 2 yildir sag dizinde kabarti sikâyeti vardi. Dermatolojik muayenesinde sag dizde 2x1 cm ebatli mavimsi-morumsu kist mevcuttu. Histopatolojik ve klinik olarak apokrin kistadenom tanisi konulan lezyonun dev boyutlu ve atipik yerlesimli olmasindan dolayi olguyu sunmayi uygun bulduk. Apocrine hydrocystomas (cyst adenomas) are apocrine originated benign cystic structures. Apocrine hydrocystomas are generally formed as solitary lesions and may be occasionally multiple. Lesions are located in the regions around the head and neck and internal epicanthus, along the eyelids. The principle cause of apocrine hydrocystoma is still unknown. In this article a 66 years old female patient is presented with the diagnosis of apocrine hydrocystomas. The patient had papule on right knee for 2 years. Upon dermatologic examination there was a bluish- purplish cyst 2x1cm in size on her right knee. We decided to present the case since the patient was histopathologically and clinically diagnosed as apocrine hydrocystoma, the patient's lesion giant in size and located atypically.