title: A misdiagnosis led to an extensive skull base surgery: infratemporal tuberculosis mimicking giant cell tumor.
abstract: Tuberculosis is a major health problem in developing countries. Tuberculosis of the infratemporal region is not common and the diagnosis could be complicated because of the similarity of the presentation to neoplasm. In our paper, we report a 49 year old male presented with a preauricular mass with extension to parotid in right side of the face. The primary histologic diagnosis was giant cell tumor with bony involvement and radical surgery was taken. After 16 months the patient was developed recurrence of the primary lesion in association with post auricular fistula. Ultimately, infratemporal tuberculosis was diagnosed according to result of the drained discharge by AFB microscopy. Therefore, tuberculosis should be considered as an important differential diagnosis of mass lesions in head and neck area, even when there is no history of significant exposure and no systemic signs or symptoms of tuberculosis.
authors.affiliation: Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Amir-A'lam Hospital, North Sa'adi Ave., Tehran, Iran.
authors.forename: Samireh
authors.initials: S
authors.lastname: Farshchi
authors.affiliation: Department Of Infectious Diseases, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Hasibi
authors.affiliation: Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Amir-A'lam Hospital, North Sa'adi Ave., Tehran, Iran.
authors.forename: Mohammad Taghi Khorsandi
authors.initials: MT
authors.lastname: Ashtiani
authors.affiliation: Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Amir-A'lam Hospital, North Sa'adi Ave., Tehran, Iran.
authors.forename: Nasrin
authors.initials: N
authors.lastname: Yazdani
authors.affiliation: Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Amir-A'lam Hospital, North Sa'adi Ave., Tehran, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Mokhtari
authors.affiliation: Department of Pharmacoeconomics and Pharmaceutical Administration, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Amir
authors.initials: A
authors.lastname: Farshchi
keywords: Giant cell tumor; Skull base; Tuberculosis