Answers are grounded in this paper and cite their sources.
The ultrasonic findings in a 54 year old white male with a rare tumor, mesenchymal chondrosarcoma, involving the rectus sheath are described. The sonogram confirmed the tumor's location in the anterior abdominal wall and provided useful information regarding its extent. An interesting feature was the lesion's relative sonolucency, apparently due to its myxoid content.
No takes yet. Share an insight, caveat, or question.
O'Malley et al. (1977) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: