title: Numb chin syndrome as a manifestation of possible breast cancer metastasis around dental implants.
abstract: Numb chin syndrome, sometimes called numb lip syndrome, is an uncommon but well-recognized symptom in medical oncology. It may be a metastatic neurologic manifestation of malignancy, often with no clinically visible pathologic finding. The authors report a numb chin syndrome as a manifestation possible breast cancer metastasis around dental implants in a 69-year-old woman. The patient was presented with complaint of numbness in the lower jaw. Medical anamnesis revealed a metastatic breast carcinoma (CA). Radiographic imaging with conventional panoramic radiography and cone beam computed tomographic examination, revealed a moth-eaten shape, radiolucent, and radiopaque mixed appearance around the dental implants that was related with possible metastasis of the breast cancer. Numb chin syndrome is almost unknown within the dental and oral and maxillofacial community, despite being well reported in the medical literature. General dentists, oral medicine specialists, and oral and maxillofacial surgeons must be aware of this condition to consider metastatic cancer in patients with unexplained facial hypoesthesia. Moreover, although the development of metastatic lesions around implants is an uncommon pathologic finding, the examination of peri-implant lesion should be performed carefully considering the entire pathologic situations.
authors.affiliation: Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey.
authors.forename: Kaan
authors.initials: K
authors.lastname: Orhan
authors.forename: Hakan
authors.initials: H
authors.lastname: Bayndr
authors.forename: Seçil
authors.initials: S
authors.lastname: Aksoy
authors.forename: Basak Kusakci
authors.initials: BK
authors.lastname: Seker
authors.forename: Atilla
authors.initials: A
authors.lastname: Berberoğlu
authors.forename: Oğuz
authors.initials: O
authors.lastname: Ozan
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000473:pathology*; D002680:Chin / Q000294:innervation*; D015921:Dental Implants; D005260:Female; D006801:Humans; D006987:Hypesthesia / Q000209:etiology*; D008339:Mandibular Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D011862:Radiography, Panoramic; D013577:Syndrome; D014057:Tomography, X-Ray Computed
chemical_list: D015921:Dental Implants