Now you see the drum, now you don’t: a rare case of conductive hearing loss in a child
DOI:
https://doi.org/10.12970/2311-1917.2017.05.01Keywords:
Temporal bone, fibrous dysplasia, craniofacial, auditory canal, hearing loss.Abstract
Introduction: Fibrous dysplasia is a benign disease of the bones, which affects the differentiation and maturation of osteoblasts. Fibrous dysplasia can affect the craniofacial bones, which can be asymptomatic or present with symptoms commonly found in an ENT outpatient clinic.
Method: We present an unusual case of temporal bone fibrous dysplasia. This is used as a platform to discuss craniofacial fibrous dysplasia further and the investigations and management.
Results: Other cases have been reported on temporal bone fibrous dysplasia, but our case is unique in the presentation. Gold-standard diagnosis for craniofacial fibrous dysplasia is by histopathological sampling, although computerised-tomography imaging can be used to diagnose fibrous dysplasia if a biopsy cannot be sought.
Conclusion: Fibrous dysplasia of the temporal bones is uncommon. Many cases from other series are found incidentally from radiology reports.
References
Papadakis CE, Skoulakis CE, Prokopakis EP, Nikolidakis AA, Bizakis JG, Velegrakis G, et al. Fibrous dysplasia of the temporal bone: report of a case and a review of its characteristics. Ear Nose Throat J 2000; 79: 52-7.
Albright F, Butler M, Hamptom A, Smith P. Syndrome characterized by osteitis fibrosa disseminata, areas of pigmentation and endocrine dysfunction with precocious puberty in females. N Engl J Med 1937; 216: 727-46. https://doi.org/10.1056/NEJM193704292161701
McCune D, Bruch H. Osteodystrophia fibrosa: report of a case in which the condition was combined with precocious puberty, multiple pigmentation of the skin and hyperthyroidism. AJDC 1937; 52: 745-8. https://doi.org/10.1001/archpedi.1937.01980040110009
Lawrence LR, Holliday MJ, McCarthy EF, Nager GT. Fibrous Dysplasia Involving the Skull Base and Temporal Bone. M Arch Otolaryngol Head Neck Surg 2001; 127: 1239-47. https://doi.org/10.1001/archotol.127.10.1239
Frisch CD, Carlson ML, Kahue CN, Pelosi S, Haynes DS, Lane J, et al. Fibrous dysplasia of the temporal bone: a review of 66 cases. Laryngoscope 2015; 125: 1438-43. https://doi.org/10.1002/lary.25078
Fitzpatrick KA, Taljanovic MS, Speer DP. Imaging findings of fibrous dysplasia with histopathologic and intraoperative correlation. Am J Roentgenol 2004; 182: 1389-98. https://doi.org/10.2214/ajr.182.6.1821389
Nager GT, Kennedy DW, Kopstein E. Fibrous dysplasia: a review of the disease and its manifestations in the temporal bone. Ann Otol Rhinol Laryngol 1982; 92: 1-52.
Duggai P, Singh B, Grover R. Fibrous Dysplasia of the Temporal Bone. Int J of Head and Neck Surgery 2010; 2: 121-124. https://doi.org/10.5005/jp-journals-10001-1024