Does false aneurysm behave like a sarcoma? Distal femoral arterial false aneurysm simulated a malign mesenchymal tumor

Abstract

We report a case of a pseudo-aneurysm of the distal femoral artery presenting as a malignant mesenchymal tumor with insidious onset, progressive symptoms, large volume mass, and atypical radiological findings.

Exostosis a Dangerous Location: A Case Report and Literature Review

“…the dangerous location and the volume of the mass, the intimate contact with the pedicle objectified by further examination, make the surgical excision imperative to prevent a significant nerve or vascular complication in this case, also several case studies report the vascular complications of exostosis serving a metaphyseal especially knee [3] [4] [6]- [9]. Also, pain, limitation of flexion and gradual increase pushed us to surgical cure, since in terms of exostosis, the rule is: any painful exostosis must be removed because the risks of degeneration are real but rare [5]. Like in our case ,To confirm the diagnosis and assess risk, MRI angiography and CT angiography are necessary to clarify the relationship between exostosis and arterial axis in the preoperative surgical planning [6], and we have not omitted the significant risk of vascular lesion preoperatively, indeed the cartilaginous exostosis layer is thinned with age and becomes rougher, she is responsible for irritation and strain of mobile vascular walls to contact the lesion, which can break afterwards [3].…”

Avoiding diagnostic pitfalls in mimics of neoplasia: the importance of a comprehensive diagnostic approach

“…Although it is relatively rare, with a prevalence of less than 3%, (11) a literature search of the MEDLINE database for all years found fi ve reports of pseudoaneurysm mimicking a soft tissue sarcoma. (12)(13)(14)(15)(16) In the third case, a premature referral for malignant fi brous histiocytoma was made based purely on the MR imaging fi nding that the right calf showed malignant bone lesion features, without correlating with histopathology or clinical history. Fortunately for the patient, an open biopsy was planned, where it was discovered intraoperatively that the source of the swelling was in fact a pseudoaneurysm arising from an old tibial fracture and lacerated posterior tibial artery, allowing the pseudoaneurysm to be safely resected before an impending rupture.…”

Pseudoaneurysm of the popliteal artery mimicking tumorous condition

“…Gantz et al [3] reported a pseudoaneurysm at the cruris mimicking a malignant soft-tissue tumor with osseous changes at the fibula. Erler et al [1] reported a case of a distal femoral arterial pseudoaneurysm with an intraosseous component mimicking a malignant mesenchymal tumor. Correct diagnosis is essential, as these unusual features of pseudoaneurysms can lead to different evaluation algorithms, such as an orthopedic oncological approach and inappropriate treatment, as in the case report of Erler et al [1].…”

“…Common causes of pseudoaneurysms around the knee include blunt trauma, penetrating trauma, fractures, previous surgical procedures, infections, and in rare cases osteochondromas [1]. The presentation of a pseudoaneurysm mimicking a musculoskeletal tumor is very rare [1-3].…”