title: Neuroendocrine adenoma of middle ear with new bone formation and review of literature.
abstract: Neuroendocrine adenoma of the middle ear has been described in literature as middle ear adenoma with neuroendocrine differentiation or carcinoid tumor. While there have been several case reports describing imaging features of carcinoid tumors of the ear and middle ear adenomas, in our literature review, we have not found a single case where bone formation is described as a prominent radiological feature. We report a first documented case of middle ear carcinoid tumor with new bone formation demonstrated on CT imaging and performed a review literature regarding the tumor. A differential diagnosis of neuroendocrine adenoma of the middle ear should be considered when there is prominent bone formation with a soft tissue mass in the middle ear on CT imaging.
authors.affiliation: Department of Otorhinolaryngology, Changi General Hospital, 2 Simei Street 3, Singapore. Electronic address: xennithus@gmail.com.
authors.forename: Huixin
authors.initials: H
authors.lastname: Hu
authors.affiliation: Department of Diagnostic Imaging, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore.
authors.forename: Wei Yang
authors.initials: WY
authors.lastname: Lim
authors.affiliation: Department of Diagnostic Imaging, Changi General Hospital, 2 Simei Street 3, Singapore.
authors.forename: Tiong Yong
authors.initials: TY
authors.lastname: Tan
authors.affiliation: Department of Otorhinolaryngology, Changi General Hospital, 2 Simei Street 3, Singapore.
authors.forename: Heng Wai
authors.initials: HW
authors.lastname: Yuen
mesh_terms: D000236:Adenoma / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D004428:Ear Neoplasms / Q000175:diagnosis*; D004432:Ear, Middle / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D010012:Osteogenesis; D014057:Tomography, X-Ray Computed / Q000379:methods*