Ultrasound in Ascariasis
Ascaris lumbricoides is a common nematode infesting a major percentage of human beings worldwide. It grows to a maximum length of 35 cm. This species is host specific to human beings and lives longer (1-2 years) with in the small intestine.
However, as the bowel loops are just under the abdominal wall, the detection of intestinal ascariasis is difficult by routine abdominal probes. It demands the use of a higher frequency high-density probe of 5 - 10 MHz. The live worm on longitudinal section appears as a writhing tubular shadow having brighter margins described by some as 'strip sign'. There is a hypoechoic core producing the 'inner tube sign'. The coiled worm appears as 'spaghetti'. The cross-sectional picture is also characteristic of a tubular body described as the ring sign or bull's eye sign if seen with in the CBD or a narrow lumen.
Full article with images here(Full free text available)-
K BALAKUMAR
Ind J Radiol Imag 2005 15:1:107-108
Ultrasound in Ascariasis
![]()
Reviewed by Sumer Sethi
on
Monday, December 26, 2005
Rating:
Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
No comments:
Post a Comment