Sonographic Patterns Of Liver Seconderies Among A Patient With Known Primary Extra Hepatic Cancer At Radiology Department Of Tikur Anbessa Specialized Hospital Tash.

Background: The most common malignancy of the liver is metastases from other organs.rn25–50% patients with a known non-haematological malignancy have liver metastases at the timernof diagnosis. The incidence of hepatic metastases depends on the type of primary tumor and itsrnstage at initial Detection. Ultrasonography being used worldwide with high frequency as arnreliable method for the initial diagnosis of liver metastases.rnAim of study: To assess the common Sonographic patterns of liver metastasis among patientrnwith known extra hepatic primary malignancy.rnMaterials and methods: institution based prospective cross sectional study of 93 patients withrnknown primary extra hepatic malignancy was conducted at sonography unit of Radiologyrndepartment of Tikur Anbessa specialized Hospital (TASH) Addis Ababa, Ethiopia from Februaryrn1 to August, 2017 using a sonoscape SSI-8000 model ultrasound machine.rnResult: The highest numbers of patients (30.1%) were in the age group of 48 – 57 followed byrn38 – 47 and 58 – 67 age group respectively. 81 of 93 patients (87.1%) had multifocal liverrnmetastases disease, where as 12 of 93 cases (12.9%) had single or solitary hepatic metastases.rnThe commonest types of liver lesion identified were target (42%), echogenic (18 %) and Hypornechoic (17 %). Out of 21 primary breast cancer patients 13 patients had Target liver lesion and 5rnhad hypo echoic liver lesions. Thirteen patients with primary colonic cancer 4 had echogenic, 3rnhad hypo echoic and 4 had target liver lesions.rnConclusion: the most common primary tumor resulting hepatic metastases are those from GIrntract with colonic adenocarcinoma being on the top followed by Breast and pancreas. Majority ofrnprimary extra hepatic tumor produce multifocal liver metastases .The ultrasound pattern of liverrnmetastases is quite varied and there is no consistent relation between the ultrasound pattern and type of tumor that allows one to specify primary malignant. The various common ultrasound patterns include multiple target, echogenic, hypo echoic and mixed patterns. Other less commonly seen Sonographic pattern of liver metastases is that of complex cystic, calcified and bizarre appearance which we couldn’t easily categorized easily under above common patterns.

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