title: Pseudoaneurysms Masquerading as Malignant Bone Tumours.
abstract: Swelling around the knees can be due to both neoplastic as well as non neoplastic aetiology. One of the rare cause for the same is pseudoaneurysm. Pseudoaneurysms can mimic a bone tumor or a soft tissue sarcoma. Pseudoanuerysms result because of the gradual growth occurring due to constant arterial pressure and development of a reactive fibrous capsule. Inappropriate diagnosis and management of these lesions may result in major morbidity and rarely mortality. We present two cases of pseudoaneurysms around the knees which were misdiagnosed as osteogenic sarcomas. These cases also stress on the importance of multidisciplinary care, in preventing avoidable morbidity, mortality and providing safe and optimal care to the patients.
authors.affiliation: Fellow, Department of Surgical Oncology, Tata Memorial Hospital , Mumbai, India .
authors.forename: Suman
authors.initials: S
authors.lastname: Byregowda
authors.affiliation: Professor and Head, Department of Surgical Oncology, Tata Memorial Hospital , Mumbai, India .
authors.forename: Ajay
authors.initials: A
authors.lastname: Puri
authors.affiliation: Associate Professor, Department of Surgical Oncology, Tata Memorial Hospital , Mumbai, India .
authors.forename: Ashish
authors.initials: A
authors.lastname: Gulia
authors.affiliation: Senior Resident, Department of Surgical Oncology, Tata Memorial Hospital , Mumbai, India .
authors.forename: Aruna
authors.initials: A
authors.lastname: Prabhu
authors.affiliation: Assistant Professor, Department of Radiodiagnosis, Tata Memorial Hospital , Mumbai, India .
authors.forename: Amit
authors.initials: A
authors.lastname: Janu
keywords: Biopsy; Knee swelling; Osteogenic sarcoma; Yin-yang-sign