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ISSN: 2161-105X
Journal of Pulmonary & Respiratory Medicine
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A Radiological Opacity: Cause and Mean

Bunkar Motilal, Takhar Rajendra P*, Arya Savita and Arif Mohd

Departments of Respiratory Medicine and Internal Medicine, Government Medical College, Kota, Rajasthan, India

*Corresponding Author:
Rajendra Takhar
MBBS, MD Departments of Respiratory Medicine
Qtr No 1/4, Medical college campus
Kota, Rajasthan, India
Tel: +919784006021
E-mail: [email protected]

Received date: May 14, 2015; Accepted date: May 18, 2015; Published date: May 22, 2015

Citation:Motilal B, Rajendra TP, Savita A, Mohd A (2015) Radiological Opacity: Cause and Mean. J Pulm Respir Med 5: i018. doi:10.4172/2161-105X.1000i018

Copyright: © 2015 Motilal B, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Introduction

A 35 years old female presented with streaky hemoptysis since seven days, without associated chest pain, fever, cough and expectoration. Her chest x-ray showed ill-defined rounded heterogeneous opacity, size approximately 5 × 3 cm in right para hilar region (Figure 1). A differential diagnosis of para hilar mass, cavitatory lesion (tuberculosis, fungal cavity, hydatid cyst and lung abscess), arterio-venous malformation and calcified lymph node was made. Clinical examination of the patient showed no abnormality. To evaluate further, right lateral chest x-ray was advised, surprisingly which was absolutely normal (Figure 2). Retrospectively, we re-examined the patient and found a topknot over her back of chest lying in inter-scapular area, raised a suspicion of topknot as the possible cause of radiological opacity. A repeat chest x-ray with the high tie up of topknot over head with hair clips was advised, Surprisingly, which was also absolutely normal (Figure 3).

clinical-experimental-ophthalmology-rounded-heterogeneous

Figure 1: Chest x-ray showed ill-defined rounded heterogeneous opacity.

clinical-experimental-ophthalmology-Right-lateral

Figure 2: Right lateral chest x-ray.

clinical-experimental-ophthalmology-over-head

Figure 3: A repeat chest x-ray with the high tie up of topknot over head with hair clips.

On the same day, another lady presented with signs and symptoms of bronchial asthma but her X-ray chest showed right sided paratracheal homogenous opacity extending up to neck and lateral X-ray similar to previous case was normal. Repeat X-ray after high tie up of her topknot was also normal (Figure 4a-4c).

clinical-experimental-ophthalmology-her-topknot

Figure 4: Repeat X-ray after high tie up of her topknot.

Two similar cases presented with radiological opacities which were because of the topknot, working as an artifact.

The artifacts are often unavoidable, they are seen due to technical errors by radiographers, patient’s factor or the presence of external or internal non-anatomical objects. The artifacts can produce difficulties in diagnosis as well as wrong diagnosis and treatment [1]. Patient related artifacts like poor co-operation with positioning or movement, obesity, skin fold thickness and hairs can encounter pathological opacity on routine chest x-ray. These hair styles using synthetic hair braid extension create a peculiar radio-opaque pattern that varied according to hair styles [2,3]. As in our cases, topknot mimics varieties of differential diagnosis. Artifacts are acceptable only when clinical question can be answered otherwise, a thorough clinical assessment along with repeat x-ray with proper specification is required. The physician should also remain vigilant, when clinicoradiological discrepancy found.

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