Study of radiological findings in high resolution computed tomography (HRCT) temporal bone in squamous chronic otitis media (COM): A hospital based cross sectional study
Journal Title: Medpulse International Journal of ENT - Year 2019, Vol 9, Issue 3
Abstract
Background: Squamous Chronic otitis media(COM)is retraction of the pars flaccida or pars tensa which has the potential to become active with retained debris(Inactive) or Cholesteatoma(Active) that results in ear discharge and hearing loss. The role of HRCT comes in knowing the extent of involvement by the disease. Objective is to study the HRCT temporal bone findings in chronic middle ear infections with reference to its extent and complications. Materials and Methods: After an initial clinical assessment, 90 patients diagnosed clinically with squamous chronic otitis media (COM) were referred for a HRCT of temporal bone which was done with a Siemens 16 slice MDCT scanner. For normal structure score-0, for involved structure score-1 given. Results: Of the 90 patients, 45 were males and 45 were females. Otorrhoea(100%) is the most common symptom. Stapes is most eroded among ossicles(69 Cases, which is 76.66%) followed by incus (64 cases, 71.1%)and malleus (41 cases, 45.55%). Scutum found eroded in 45 cases(50% cases). Facial canal Dehiscence found in 28 cases(31.11%). Tegmen tympani Erosion was observed in 2 cases. Lateral semicircular canal erosion was observed in 4 cases(4.44%). Dehiscent jugular wall was observed in 1 case. Dural plate involvement seen in 8 cases(9%) and sinus plate involvement was seen in 6 cases(6.66%). EAC involvement was seen in 3 cases(3.33%). Conclusion: HRCT of Temporal bone is useful in identifying various findings related to the location and extent of disease which are clinically occult and is of great importance in guiding the surgeon in planning the surgical approach.
Authors and Affiliations
Tapan Shah, Hiren Soni
Keywords
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