Abstract
Article: The Value of Sonography in the Assessment of Skin Cancers and Their Metastases
Authors: Dora DiGiacinto, MEd, RDMS, RDCS, Jennifer Bagley, MPH, RDMS, RVT, and Amber M. Goldsbury, BISMIRS, RDMS, RVT
Category: Abdomen
Credit: 1.0 SDMS CME Credit
Objectives: After studying the article entitled “The Value of Sonography in the Assessment of Skin Cancers and Their Metastases,” you will be able to:
Discuss the role of sonographic imaging in skin cancer assessment
Differentiate normal from abnormal lymph node appearances
Explain various sonographic appearances of nonmelanoma skin cancers
The role of sonography in assessment of skins cancers is Lesion margins Distance from anterior surface of lesion to skin surface Depth to the lesion Sentinel node histology
Which one is not a characteristic of a melanoma? Hypoechoic Homogeneous Firmer Isoechoic to adjacent tissue
Imaging of skin cancer lesions is performed using a frequency range of 7.5–10 MHz 10–14 MHz 14–20 MHz 20–100 MHz
Which characteristic of lymph nodes is equivocal for determining malignancy? Absent hilar vessels Cortical thickening Loss of fatty hilum Longitudinal/transverse diameter ratio <2
Which one of the following is not considered a significant limitation to accuracy in assessing a skin lesion? Transducer frequency Lack of standard reporting Axial resolution Overestimation of depth
When assessing lymph nodes, the sonographer should Attempt compression while scanning in color mode Scan a 4-cm periphery around the lesion Decrease transducer frequency in comparison to skin lesion Assess the largest node only
Which one of the following has the most concerning prognosis? Melanoma Basal cell carcinoma Actinic keratosis Squamous cell
Which one is not a characteristic of metastatic lymph node invasion? Oval to round shape Color flow in the periphery Anechoic Flow in the hilum
Which of the following is a sonographic characteristic of a normal lymph node? Butterfly Hourglass Color flow seen in the hilum Bulging
The histologic depth of invasion is referred to as Bernoulli’s principle Breslow index Clark’s level Lentigo
Footnotes