title: Chronic Expanding Hematoma in the Popliteal Fossa after Pseudoaneurysm Surgery because of Nail Puncture.
abstract: Hematomas caused by surgery or trauma that persist and expand slowly for more than a month are defined as chronic expanding hematomas (CEH). Magnetic resonance imaging (MRI) is useful for the diagnosis. Total excision with the pseudocapsule is the treatment method. Pseudoaneurysms result from arterial wall disruptions and can be mistaken for CEH. We present a rare case report of a 45-year-old man with a large, painful swelling in his left popliteal fossa. He had a puncture wound by a nail 11 years ago and a gradually expanding mass occurred in his popliteal fossa. A pseudoaneurysm was detected and operated a year later. After surgery, a gradually expanding mass recurred in his popliteal fossa. On the arteriography, the popliteal artery was occluded and the blood flow was maintained with collateral vessels. On MRI, an enormous swelling of 115 × 107 × 196 cm in diameter was seen. It was diagnosed as CEH and was excised completely protecting the collateral vessels and there was no recurrence after a year from the surgery.
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Serdar
authors.identifier: 0000-0002-7681-2254
authors.initials: S
authors.lastname: Yilmaz
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Deniz
authors.identifier: 0000-0002-8139-8780
authors.initials: D
authors.lastname: Cankaya
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Alper
authors.initials: A
authors.lastname: Deveci
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Ozkurt
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey.
authors.forename: Mehmet Emin
authors.initials: ME
authors.lastname: Simsek
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Numune Training and Research Hospital, Ankara, Turkey.
authors.forename: Abdullah Yalcin
authors.initials: AY
authors.lastname: Tabak
authors.affiliation: Department of Orthopaedics and Traumatology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Bozkurt