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==Evaluation==
Possible findings:
===Lymph nodes===
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File:Ultrasonography of a normal lymph node.jpg|thumb|A typical '''normal lymph node''': smooth, gently lobulated oval with a hypoechoic cortex measuring less than 3 mm in thickness with a central echogenic hilum.<ref name=Dialani2014>{{cite journal|last1=Dialani|first1=V.|last2=James|first2=D. F.|last3=Slanetz|first3=P. J.|title=A practical approach to imaging the axilla|journal=Insights into Imaging|volume=6|issue=2|year=2014|pages=217–229|issn=1869-4101|doi=10.1007/s13244-014-0367-8}} Creative Commons attribution license</ref>
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===Lipoma/Liposarcoma===
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File:Ultrasonography of a lipoma.jpg|A '''lipoma''': hyperechoic compared to adjacent muscle, and relatively well-defined, with miniature hyperechoic lines.<ref name=Chernev2013>{{Cite journal|author=Chernev I, Tingey S.|title=Thenar intramuscular lipoma: A case report.|journal=J Med Cases|year=2013|volume=4|issue=10|pages=676-8}}</ref>
File:Scrotal ultrasonography of liposarcoma.jpg|'''Liposarcoma''': In this case a heterogeneous mass consisting of an upper hyperechoic portion, corresponding to lipomatous matrix, and areas of hypoechogenicity corresponding to nonlipomatous components.<ref name="MakTzeng2012">Content originally copied from: {{cite journal|last1=Mak|first1=Chee-Wai|last2=Tzeng|first2=Wen-Sheng|title=Sonography of the Scrotum|year=2012|doi=10.5772/27586}} from {{cite web|url=https://www.intechopen.com/books/sonography/sonography-of-the-scrotum||title=Sonography|author=Kerry Thoirs}} {{ISBN|978-953-307-947-9}}, Published: February 3, 2012, under the [https://creativecommons.org/licenses/by/3.0/ CC-BY-3.0 license].</ref>
File:Scrotal ultrasonography of liposarcoma mimicking a lipoma.jpg|'''Liposarcoma''' mimicking lipoma. A homogeneous hypoechoic mass presenting with the same appearance of lipoma. It was clinically distinguished as having rapid growth.<ref name="MakTzeng2012"/> It demonstrates the inaccuracy of ultrasound to properly distinguish lipomas from liposarcomas, so this case should have had MRI as a first investigation.
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