Cases reported "Psoas Abscess"

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1/24. Pneumococcal psoas abscess.

    A 47-year-old woman was admitted to our hospital because of severe low back pain. A computed tomography (CT) scan revealed a left sided psoas muscle abscess. On the first hospital day, US-guided drainage was performed. streptococcus pneumoniae was isolated from the pus. Thereafter, the open drainage of the abscess and antibiotic treatment were given with subsequent clinical improvement. Only 10 cases of pneumococcal psoas abscess have been previously reported in the world literature.
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2/24. Unusual presentation of psoas abscess in a child.

    Primary abscess of the psoas muscle is relatively rare in infants and young children. The clinical presentation of the disease, with limping, fever, and abdominal pain, may be confused with conditions such as septic arthritis of the hip, osteomyelitis, or appendicitis. The authors present an unusual case of a ruptured left psoas abscess presenting as generalized peritonitis in a child. J Pediatr Surg 36:1859-1860.
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3/24. psoas abscess associated with infected total hip arthroplasty.

    A 65-year-old man with a left uncemented total hip arthroplasty performed 11 years previously was admitted with a history of progressive low back pain, left hip pain, and sepsis that had begun 6 months earlier. On physical examination, a gross, fluctuant mass was palpated in the left thigh. A computed tomography (CT) scan revealed a 6.5 x 3 cm left retrofascial psoas abscess communicating with the hip joint. The patient underwent irrigation and debridement of the hip with removal of the components. The psoas abscess was drained through the iliopsoas bursa. A residual psoas abscess was drained percutaneously under CT guidance. Cultures isolated escherichia coli, and the patient responded to 6 months of ciprofloxacin therapy. After 1 year, the patient had no evidence of infection. Pathways of infection spread, diagnosis, and treatment of a patient with this rare association are discussed with a review of the literature.
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4/24. Vertebral osteomyelitis and psoas abscess occurring after obstetric epidural anesthesia.

    BACKGROUND AND OBJECTIVES: Back pain and infectious complications occasionally occur after epidural anesthesia in obstetrics, and accurate diagnosis can be difficult. We report a patient who developed low back pain soon after obstetric epidural anesthesia and was diagnosed 6 months later with lumbar vertebral osteomyelitis, discitis, and a psoas abscess. CASE REPORT: A 34-year-old woman developed persistent low back pain after receiving epidural anesthesia for labor analgesia and cesarean delivery. After 6 months, a diagnosis of lumbar vertebral osteomyelitis, discitis, and psoas abscess was made, and surgery was performed. Because of the temporal and anatomical relationships between epidural catheterization and the development of symptoms, the preceding epidural anesthesia was initially suspected as a potential cause. However, because the posterior spinal elements were unaffected and the infectious agent was subsequently identified as tuberculous, the cause was eventually determined as unlikely to be related to the epidural procedure. CONCLUSION: Investigation of severe back pain after epidural anesthesia should include consideration of infectious causes, such as vertebral osteomyelitis and discitis, which may not be causally related to the epidural catheterization itself.
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keywords = back pain
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5/24. Primary psoas abscess complicating a normal vaginal delivery.

    BACKGROUND: psoas abscess is a rare and potentially dangerous complication of normal delivery. CASE: We describe a case of primary psoas abscess after normal vaginal delivery. A young woman presented with fever, left back pain, left lower abdominal pain, and hip pain starting on postpartum day 2. Computed tomography demonstrated a large retroperitoneal collection. Aspiration drainage of the abscess under computed tomography guidance isolated Streptococcus viridans, which responded to antibiotic therapy and percutaneous drainage with complete resolution. CONCLUSION:A high index of suspicion is necessary for diagnosis of psoas abscess, which should be considered in postpartum patients with pyrexia, back and hip pain, and a normal neurologic examination. Computed tomography is effective for diagnosis and allows percutaneous drainage of the abscess.
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keywords = back pain, abdominal pain
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6/24. Clinics in diagnostic imaging (71). Left iliopsoas abscess secondary to vertebral osteomyelitis.

    A 26-year-old woman presented with a progressively painful lump at her left groin and upper thigh for five months. She also had intermittent back pain for three years. Radiographs and CT showed osteolytic destruction of the several contiguous thoracolumbar vertebrae with a large left iliopsoas abscess that extended to involve the left gluteus maximus and adductor magnus muscles. She responded well to a course of antibiotics.The role of imaging and imaging features of iliopsoas abscesses are discussed, together
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7/24. Primary psoas abscess. Report of three cases.

    BACKGROUND: Primary psoas abscesses are a rare clinical entity with subtle and non specific symptoms, most commonly seen in patients predisposed to infections. early diagnosis and appropriate management are therefore challenging aspects for physicians. patients AND methods: We present three patients with primary pyogenic psoas abscess, treated at the Heraklion University Hospital, during a 5-year period. The two male and one female patient, aged 36-51 years were admitted with fever, abdominal pain and a palpable tender mass. RESULTS: The classical sign of limping was absent in all cases. Positive psoas symptoms were detected in only two patients. CT scan accurately confirmed the diagnosis in all cases. The patients were successfully treated with antibiotics and prolonged surgical drainage. staphylococcus aureus was the causative microorganism in the first two and bacteroides fragilis in the third patient. This is the first reported case resulting from this specific bacteria. None of our patients had any predisposing risk factor. CONCLUSIONS: A high index of suspicion is mandatory to enable early recognition of this rare clinical disease. CT scan is the standard diagnostic tool to confirm diagnosis. Prolonged drainage and appropriate antibiotics are essential for the successful treatment of primary psoas abscesses.
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keywords = abdominal pain
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8/24. low back pain at presentation in a newly diagnosed diabetic.

    insulin dependent diabetes mellitus predisposes to a range of different and unusual infections, including epidural and psoas abscesses. However, they occur mainly in adults with longstanding diabetes. We report the case of a 12 year old boy who presented with diabetic ketoacidosis and low back pain, and was subsequently diagnosed with both a left psoas abscess and an extensive thoracolumbar spinal epidural abscess measuring 20 cm in length. This case report highlights the need to maintain a high index of suspicion for epidural abscesses in children presenting with fever and localised back pain. early diagnosis with appropriate imaging and aggressive management can prevent development of permanent neurological damage as was the case in our patient.
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9/24. The challenge of diagnosing psoas abscess.

    Diagnosing psoas abscess in patients with low back pain might be hampered by their atypical symptoms. We describe a case in which a 39-year-old retired provost marshal presented to our emergency facility with acute onset of low back pain following an episode of lumbar strain during a flight. His initial computed tomography of lumbar spine and abdominal sonography were inconclusive. Two weeks later, he was admitted to our rehabilitation unit for similar symptoms. One day later, leukocytosis and elevated c-reactive protein following rising body temperature were found. fever of unknown origin (FUO) was impressed after series of laboratory studies. However, an inflammatory gallium scan performed 2 weeks later due to persistent fever revealed active infection in the L4 vertebra and soft tissue of the L5 paraspinal region. MRI was then performed and demonstrated abnormal enhancement at the bodies of the L2 and L3 vertebrae, prevertebral soft tissue and bilateral psoas muscles. A CT-guided percutaneous aspiration of 10 cc yellowish pus was attained, which yielded no pathogens. His symptoms subsided 1 week after being given appropriate antibiotics. This case showed the importance of nuclear scanning and MRI in patients with low back pain and FUO. It also suggests that repeated imaging study and/or other modality should be considered when the initial imaging result is not compatible with the clinical presentation of psoas abscess, which was initially missed by image studies.
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10/24. Is spinal instrumentation a risk factor for late-onset infection in cases of distant infection or surgery? Case report.

    As a cause of revision spinal surgery, spinal epidural abscess after instrumentation-assisted fusion is rare in neurosurgical practice. Postoperative infections are frequently seen in the time period soon after surgery. The authors report on the case of a 45-year-old woman who had undergone posterior instrumentation-augmented fusion for L4-5 degenerative spondylolisthesis. Ten months after the operation she presented to the neurosurgery clinic with complaints of severe low-back pain and radicular right lower-extremity pain. She had undergone laparoscopic surgery for acute cholecystitis 1 month prior to readmission. Radiological study revealed a spinal epidural abscess in communication with a right psoas abscess at L4-5. The abscess was drained percutaneously with the aid of C-arm fluoroscopic guidance, and a 6-week course of parenteral antibiotic therapy was administered. Retrograde lymphatic bacterial translocation, hematopoietic spread, and the suitable characteristics in the host may facilitate the development of infection around the implant. Thus, distant surgery and infection may be a risk factor in cases in which spinal instrumentation is placed. In such cases a prolonged antibiotic therapy for distant infection after surgery is recommended.
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