Clinical study of correlation between preoperative findings of HRCT with intraoperative findings of cholesteatoma in cases of CSOM
Journal Title: IP Indian Journal of Anatomy and Surgery of Head, Neck and Brain - Year 2017, Vol 3, Issue 1
Abstract
Among patients attending to ENT OPD, chronic suppurative otitis media (CSOM) is one of the common conditions. Mastoid, middle ear surgeries are difficult at times because, the CSOM can be associated with complications; the temporal bone accommodates vital structures (internal carotid artery, facial nerve, jugular bulb etc.) and its anatomical variations. In this study, we planned to investigate the use of preoperative HRCT scan to assess the pathology, extent of the disease, middle ear structures, and presence of cholesteatoma and also to compare with intra operative findings. Materials and Methods: The HRCT findings of 40 patients with CSOM with cholesteatoma were compared with operative findings. CT scan was performed with Seimens Somatom emotion 6 scanner. With the help of HRCT status of the middle ear structures (ossicles, scutum, facial nerve canal and tegmen tympani), semicircular canals and sigmoid plate were assessed and compared with operative findings. Correlation between radiological and intra-operative findings was calculated. Results: A good radio surgical correlation is seen in CSOM with cholesteatoma for status of most middle and inner ear structures except for the integrity of the facial canal. A poor radiosurgical correlation was observed for differentiating cholesteatoma from chronic mucosal thickening as the underlying pathology in cases with CSOM. HRCT was found to be sensitive in detecting erosions of incus(85%), stapes(82.3%), scutum(91.67%), sigmoid plate(100%) and mastoid cortex(100%) whereas less sensitive in erosions of malleus (68.75%), tegmen(32.6%), semicircular canal(71.4%) and facial canal(53.3%). 100% specificity was obtained for erosions of malleus, incus, scutum, sinus plate and mastoid cortex whereas it is relatively less specific for erosions of facial canal(84%) and tegmen(81%). Interpretation and Conclusion: HRCT of temporal bone has a definitive role in pre-operative assessment of CSOM with cholesteatoma as it helps in assessing the extent of the disease and integrity of most of the middle ear structures.
Authors and Affiliations
Niveditha J. Sagar, Chidananda R. Devasamudra
Keywords
Related Articles
- EP ID EP303631
- DOI 10.18231/2455-846X.2017.0001
- Views 89
- Downloads 0
Perception of first year medical students on the use of whatsapp as a supplementary learning tool
Introduction There is a growing use of Whatsapp as a communication platform between students and also between students and faculties The present study was conducted to find out the perceptions of first year medical stude...
Role of ultrasound and doppler in characterizing thyroid nodules and differentiating benign and malignant thyroid nodules
One of the consequences of increased use of imaging has been the discovery of incidentalomas or pseudodiseases that are common in the general population but have no or minor clinical significance One such incidentaloma t...
Intracranial Tumors in childhood – A Review
Introduction Most commonly intracranial tumors are located in infratentorial region and hind brain is most common site for their origin. Infratentorial tumors account for about 45– 60% of all pediatric brain tumors, and...
Assessment of denture stomatitis in removable denture wearers and its correlation with variable factors such as age, gender, length of denture use and nocturnal dental care
Teeth are shining boon for human beings. In todays, modern times removable dentures have been overtaken by fixed prosthesis. Nevertheless, removable dentures still are used by people to meet their functional and esthetic...
Delayed Facial Nerve Palsy after tympano-mastoid Surgery
Aim: Data on delayed facial nerve palsy (DFNP) following tymanomastoid surgery are limited. We conducted a retrospective chart review to determine the incidence, possible predisposing factors, treatment, and prognosis of...