Imaging spectrum, pattern and level of obstruction of patients with obstructive jaundice on abdominal CT and MRCPat Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia Jan2018-Aug,2020 E.C.
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Date
2020-11
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Addis Abeba University
Abstract
Background:obstructive jaundice is a common clinical problem in medical practice.The condition can be
caused by theobstruction of the bile duct with choledocholithiasis, strictures and hepato-biliarymalignancy.
Objective: To assess imaging spectrum, level and pattern of obstructive jaundice on cross sectional imaging, CT
and MRCP
Methods: A retrospective analysis of all patients admitted with a diagnosis of obstructive jaundice atTikur
Anbessa hospital fromJan 2010 to Aug. 2012 E.C
The data were collected from patient medical records and PACS using pretested, structured data extraction
format was used to collect the data, which were entered onto andanalyzed using SPSSversion 2 5.
Results: A total of 105 patients, 73 (69.5%)were males. Theirage ranged from 25 to 83 years with a mean age
of 53(±SD)13.8years. 79(75.2%) of the cases had malignant causes while the rest 26(24.8%) had benign causes
for obstructive jaundice. The most common malignant lesion was cholangiocarcinoma with 33 cases followed
by pancreatic cancer which was seen in 28 cases. The most common benign lesion seen was
choledocholithiasis which was seen in 9 cases followed by benign Stricture which had 6 cases . The commonest
site of obstruction was at the peri- ampullary region in 40(38.1%) of the cases followed by distal common bile
duct and the hepatic hilum with 35(33.3%) and 20(19%) respectively. The most common imaging findings was
an enhancing intraluminal soft tissue mass which was present in 67(63.8%) which was followed by a focal wall
thickening.Abdominal CT and MRCP wasthe main imaging modality used.
Conclusion:The most common imaging spectrumof obstructive jaundice are malignant lesions with
cholangiocarcinoma being the commonest and choledocholithiasis is the commonest benign causenoted with
periampullary region the commonest level/site of obstructi ve jaundice and intraluminal enhancing mass the
commonest pattern noted both in the cholangiocarcinoma and pancreatic head tumor.
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Keywords
Imaging spectrum ,abdominal CT , MRCP