Cases reported "Popliteal Cyst"

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61/77. False aneurysm of the popliteal artery complicating acupuncture.

    This is the first reported case in which acupuncture needle injury of the popliteal artery caused the development of a false aneurysm. The patient presented with rupture of the aneurysm and was successfully managed by arterial repair. ( info)

62/77. Deep posterior knee pain caused by a ganglion of the popliteus tendon--a case report.

    The most common causes of posterior and posterolateral knee pain (besides referred pain) are knee joint effusions, tendinitis of the hamstring tendons, Baker cyst (semi-membranous cyst), bursitis, meniscal pathologies such as tears and ganglions and lesions of the anterior cruciate ligament. Less common causes include popliteus and gastrocnemius tendinitis, arthrofibrosis after trauma, posterior cruciate ligament sprains, deep venous thrombosis and/or irritations of the common peroneal nerve. We present one patient with posterolateral knee pain after a minor contusion. magnetic resonance imaging revealed a degenerated posterior horn of the lateral meniscus and a somewhat unclear polypoid structure in the intercondylar region. As the posterior component of the pain persisted even after an arthroscopic partial meniscectomy, an operative revision was performed. A small ganglion of the sheath of the popliteus tendon was found and excised. The patient was immediately relieved of his pain after this procedure. To our knowledge this is the first report concerning a ganglion of the sheath of the popliteus tendon causing posterior knee pain. A similar pathology of the popliteus tendon has been described earlier but at a different localisation (in the hiatus), simulating a parameniscal cyst. ( info)

63/77. Is Baker's cyst a risk factor for pulmonary embolism?

    We encountered a 73-year-old man with acute pulmonary embolism (PE) and Baker's cyst. Venography revealed that the right popliteal vein was compressed by Baker's cyst and deep venous thrombosis (DVT) had developed. DVT associated with Baker's cyst is rather common and these two conditions are thought to be causally related. Baker's cyst is the most frequent mass lesion in the popliteal region. We suggest that Baker's cyst is a risk factor for PE as well as surgery and trauma. ( info)

64/77. Adventitial cyst of the popliteal artery. Report of a case.

    A case of cystic degeneration of the popliteal artery in a 58-year-old male is reported. Symptoms consisted of a claudication of abrupt onset and the correct diagnostic clue was initially given by magnetic resonance of the knee and confirmed by angiography. Treatment consisted of surgical removal of the cyst and saphenous vein angioplasty of the popliteal artery, with good anatomic and functional result at one year follow-up. Diagnostic tools and treatment of the condition are briefly discussed. ( info)

65/77. Proximal dissection of a popliteal giant synovial cyst: a case report.

    Giant synovial cysts in patients with rheumatoid arthritis are well-recognized soft-tissue masses adjacent to the knee. Cases involving the elbow, hip, and other synovial joints have been reported as well. Regardless of location, these expanding, space-occupying lesions usually present with nonspecific symptoms of swelling and pain. Less commonly, the original presentation may be related to the secondary effects of the cyst on nearby anatomic structures. We present a case of a giant synovial cyst originating posteriorly in the knee, which, rather than dissecting distally into the calf, dissected proximally into the posterior soft tissue of the thigh in a patient with long-standing rheumatoid arthritis. ( info)

66/77. MRI appearance of popliteal cysts in childhood.

    Popliteal cysts are soft fluid-filled lesions of synovial origin which result from extrusion of joint fluid into the gastrocnemiosemimembranous bursa. They may occur in any age group, but 22-33 % occur in the first 15 years of life. In this age group they are rarely associated with intraarticular abnormalities and therefore rarely require treatment. This case report shows the magnetic resonance imaging (MRI) appearances of a popliteal cyst in two children. ( info)

67/77. Baker's pseudocyst in the prosthetic knee affected with aggressive granulomatosis caused by polyethylene wear.

    It is our belief that this is the first histologically documented case of popliteal cyst secondary to early failure of a cementless knee prosthesis, that occurred after 4 years. The walls of the cyst presented with granulomatous reaction to polyethylene particles. In prosthetic reimplantation successive to excision of the cyst we observed a recurrence of cysts and osteointegration of the prosthetic components, that made reimplantation difficult. Histological assessment of the synovial tissue, periprosthetic tissue and underlying bone showed granulomatous reaction to polyethylene debris. A "tumor" in a patient that has a knee prosthesis can be caused by implant failure. In cases of early failure wear forms large particles and their migration at the bone-prosthesis interface may be obstructed and thus cause a different biological response. If reimplantation is necessary osteointegration of the implants may make surgery difficult. ( info)

68/77. Acute compartment syndrome in ruptured Baker's cyst.

    We present a case report of a previously healthy 43-year-old man with a Baker's cyst and spontaneous venous bleeding in a leg compartment, which caused a compartment syndrome. A thorough evaluation of this case and the treatment are explored. ( info)

69/77. Noninvasive vascular imaging in the diagnosis and treatment of adventitial cystic disease of the popliteal artery.

    This brief case report describes the successful outcome after surgical excision of multiple adventitial cysts of the popliteal artery in a 75-year-old man with rapidly worsening claudication. It highlights several unsettled points concerning the diagnosis, cause, and management of cystic adventitial disease of the popliteal artery and compares duplex ultrasound, computed tomography, and magnetic resonance angiography in the noninvasive diagnosis and treatment of this condition. ( info)

70/77. thrombophlebitis and pseudothrombophlebitis in the ED.

    The patient presenting to the emergency department (ED) with a painful swollen lower extremity is considered to have deep venous thrombosis (DVT) until this diagnosis can be ruled out. This clinical presentation, however, is far from specific and the differential diagnosis includes symptomatic Baker's cyst, also known as pseudothrombophlebitis syndrome (PTP). This article presents two cases of PTP and reviews the literature relevant to diagnosis of DVT and PTP. ultrasonography is now the diagnostic test of choice for both DVT and PTP, being safe, accurate, noninvasive, and rapid, and should ideally be available for use in the ED. ( info)
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