title: Giant metastasizing malignant hidradenoma in a child.
abstract: An 8-year-old girl presented with a scalp swelling. The swelling was recurrent, reappearing everytime after local excision. She underwent surgery and the histopathologic diagnosis was malignant hidradenoma. This very rare and aggressive tumor is known to occur in elderly population and is histopathologically distinct from its commonly occuring benign counterpart. Malignant hidradenoma is resistant to chemotherapy and radiotherapy. We empahsize that being cognizant of the possibility of this rare tumor would assist in timely action in the form of wide resection, with possible reduction in morbidity and mortality.
authors.affiliation: Department of Radio Diagnosis, Safdarjung Hospital and Vardhman Mahavir Medical College, New Delhi, India.
authors.forename: Sunil K
authors.initials: SK
authors.lastname: Bajaj
authors.affiliation: Department of Radio Diagnosis, Safdarjung Hospital and Vardhman Mahavir Medical College, New Delhi, India.
authors.forename: Ritu
authors.initials: R
authors.lastname: Misra
authors.affiliation: Department of Radio Diagnosis, Safdarjung Hospital and Vardhman Mahavir Medical College, New Delhi, India.
authors.forename: Rohini
authors.initials: R
authors.lastname: Gupta
authors.affiliation: Department of Pathology, National Institute of Pathology, Indian Council of Medical Research Laboratory, Safdarjung Hospital Campus, New Delhi, India.
authors.forename: Anju
authors.initials: A
authors.lastname: Bansal
keywords: Clear cell eccrine carcinoma; hidradenoma; malignant nodular hidradenoma; sweat gland carcinoma