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allied
academies
September 20-21, 2017 | Philadelphia, USA
Global summit on
TUBERCULOSIS AND LUNG DISEASE
Int J Respir Med 2017 Volume 2 Issue 2
P
urpose: To analyze the computed tomography (CT) features and the reasons for
misdiagnosis of parotid tuberculosis (TB). Methods: CT features of 13 cases of
parotid TB identified more than a 10-year period (2005–2015) were retrospectively
analyzed. The CT features were analyzed for nature, range, and extent of the various
pathological patterns. Results: Because of the nonspecific CT features, 10 of 13 cases
were misdiagnosed as benign and malignant tumors of parotid gland and received
surgery. Ten cases of lymph nodal TB, one case of parenchymal TB, and two cases
of mixed (concurrence of lymph nodal and parenchymal types) TB were found in
the parotid gland. On contrast-enhanced CT scan, two cases showed homogeneous
enhancement and eight cases showed ring enhancement (including five cases with
thin-walled ring enhancement, two cases with flower-ring enhancement, and one
case with thick-walled and eccentric ring enhancement); diffuse enhancement was
seen in the one case of parenchymal type; the two cases of mixed type showed diffuse
enhancement of parotid gland and ring enhancement of lymph node. Thickened skin
around the parotid gland was seen in eight cases, including sinus tract between the
lesion and skin in two cases. Ipsilateral cervical lymphadenopathy was found in 10
patients and bilateral was found in 3 patients. Conclusions: Nonspecific CT features
of parotid TB closely relate with pathological changes. Recognition and understanding
the spectrum of CT features of parotid TB is helpful for differential diagnosis, but the
definitive diagnosis still depends on laboratory and pathological examination.
e:
mrsks2007@hotmail.comCT features and analysis for misdiagnosis of parotid tuberculosis
Shambhu Kumar Sah
Janakpur Zonal Hospital, Nepal