title: Malignant nodular hidradenoma of scalp.
abstract: Malignant nodular hidradenoma (MNH) is a rare tumor of sweat gland known by many names in the literature. Scalp is a known and yet uncommon site of occurrence. We describe two patients with scalp MNH with brain parenchymal invasion. Both tumors recurred in spite of total excision and radiotherapy.
authors.affiliation: Department of Neurosurgery, Rahman Hospital, Guwahati, Assam, India.
authors.forename: Tanmoy
authors.initials: T
authors.lastname: Maiti
authors.affiliation: Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.
authors.forename: Sampath
authors.initials: S
authors.lastname: Somanna
authors.affiliation: Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.
authors.forename: Bhagavatula Indira
authors.initials: BI
authors.lastname: Devi
authors.affiliation: Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.
authors.forename: Asha
authors.initials: A
authors.lastname: Unchagi
authors.affiliation: Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.
authors.forename: Dhaval
authors.initials: D
authors.lastname: Shukla
keywords: Cutaneous adnexal tumor; malignant nodular hidradenoma; scalp tumor; skull tumor