Case report: Ossifying metastases from carcinoma of the large bowel demonstrated by bone scintigraphy

The value of 18F-fluorodeoxyglucose positron emission tomography combined with computed tomography in the detection and characterization of soft tissue metastasis

“…STM may present in a number of muscular and subcutaneous sites across the body with a ratio higher than 1.5:1 (4) or 1.2:1 (15). In this study, the ratio was 1:3.3 (51/170), suggesting that subcutaneous STM may have been underreported in the literature.…”

“…On plain radiographs STM generally presents as a soft tissue shadow; however, in the case of metastatic gastric and pancreatic carcinoma, calcifications within the soft tissue masses have been observed (14). Ossification within the muscle metastases of colorectal cancer has also been reported (15). CT provides a complete evaluation and definition of the extent of the mass in the skeletal muscle and its association to the adjacent bones, fascial planes, vessels and fat.…”

Distant Soft Tissue Metastases: A Series of 30 New Patients and 91 Cases From the Literature

“…3,4,[7][8][9][10][11][12]14,15,20,22,24,26,27,29,30,32,34,36,37,39,40,42,43,44,45,48,49,53,55 Because the currently reported group of 30 new patients did not include any patients whose primary tumors were of renal or colon origin, the possibility remains that cases of renal and colon metastases to soft tissue are overrepresented in the literature. This possibility seems especially likely given the relatively prolonged survival for the vast majority of those renal cell metastases reported.…”

Skeletal muscle metastases: primary tumours, prevalence, and radiological features

“…According to the literature, the ossification of SMM is infrequent and has been described sporadically in gastric cancer, and esophageal and colonic adenocarcinoma [50][51][52]. The cause of this neoplasm-induced intramuscular ossification is unknown.…”