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PubMed1994

General peritonitis induced by rectal examination: an unusual complication of primary psoas abscess.

Primary psoas abscess is a relatively rare disease with highest incidence in children and adolescents. It usually presents with fever, abdominal pain and limp. Limping tends to incriminate musculoskeletal problems below the pelvis, but movement of the hip involves the psoas muscle which is mostly retroperitoneal and intimately related to pelvic and intraperitoneal organs. Although the current tendency is to use abdominal sonography, rectal examination is still a valuable step in clinical examination, and may help to assess a pelvic mass or abscess. The following case report describes the elusive nature of psoas abscess and a rare occurrence of abscess rupture and peritonitis, immediately after rectal examination.

Child, Preschool↗
PubMed1992

Psoas abscess following ingestion of psoas.

A case of right psoas abscess that was caused by duodenal perforation following the ingestion of a wooden skewer from a filet mignon is presented. Surgical repair of the perforation, drainage of the abscess and 5 days of intravenous antibiotics resulted in prompt recovery.

Duodenal Diseases↗
PubMed1994

Secondary psoas abscess twenty-seven years after nephrectomy.

Abscesses of the psoas muscle are due to a hematogenous dissemination, to the spread of infection from adjacent intestinal structures, to osteomyelitis of the spine or to tuberculous infection of a disc space. In contrast, psoas abscesses related to the urological tract have only been described on exception. The present report focuses on a right psoas abscess which developed 27 years after a nephrectomy. The infectious process resulted from the spread of an acute vesical infection through the residual ureter. Analysis of 4 other cases reported in the literature allows us to delineate the clinical features of psoas abscesses of urological origin.

Aged↗
PubMed1985

Psoas abscess complicating Crohn's disease.

Psoas abscess classically was described as secondary to tubercular spondylitis but now more frequently is a complication of an intraabdominal process such as Crohn's disease. Less well recognized is that the fever, flexion contracture of the hip, and weight loss characterizing psoas abscess may be the first indications of Crohn's disease; in fact, gastrointestinal symptoms may be completely absent. Psoas abscess was the first sign of Crohn's disease in 11 of 46 reported patients. We present three additional patients; two were asymptomatic before psoas abscess formation. Only seven of 26 patients whose sole surgical procedure was drainage had subsequent resolution of the abscess. When drainage was combined with bowel resection, 14 of 18 patients (77.8%) were cured by the initial procedure. Thromboembolic complications occurred in four patients (8.3%). Effective therapy when psoas abscess complicates Crohn's disease, includes appropriate antibiotics, drainage, resection of fistulous intestine, and antithrombotic prophylaxis.

Abdominal Muscles↗
PubMed2003

[Psoas abscesses. Genesis, diagnosis, and therapy].

BACKGROUND: A psoas abscess is a rarely encountered entity with various etiologies and nonspecific clinical presentation, frequently resulting in delayed diagnosis, increased morbidity, and prolonged or recurrent hospitalization. PATIENTS AND METHODS: Between January 1996 and January 2002 we treated ten patients (approximately 54.8, 5 males,5 females). These cases were analyzed retrospectively relative to a review of the literature. RESULTS: CT scanning was decisive in the final diagnosis of psoas abscess. Primary psoas abscess occurred in four cases and six patients had secondary abscesses. In all except one case, the psoas abscess was located on the right side. The causes of primary abscesses were retroperitoneal perforated appendicitis, paravertebral injections for lumboischialgia, Pott's disease, and repeated intravenous drug application in the groin. Five patients underwent retroperitoneal open drainage and four patients CT-guided drainage. One patient with retroperitoneal perforated appendicitis was treated by laparotomy. Staphylococcus aureus, Bacteroides fragilis, and Escherichia coli were the most common infective agents. There was no postoperative mortality and no cases of abscess recurred. CONCLUSIONS: CT scan is a diagnostic "gold standard" for psoas abscess. CT-guided drainage is the method of first choice, but is not possible in all cases. Open retroperitoneal drainage is a standard method of treatment. Postoperative antibiotic therapy is obligatory and should be adapted individually.

Adult↗
PubMed1993

Ga-67 imaging in primary and secondary psoas abscess.

Primary and secondary psoas abscesses are uncommon and frequently misdiagnosed. Two cases of pyogenic psoas abscess are presented to illustrate the usefulness of Ga-67 scintigraphy in determining the presence and the extent of the infectious process.

Adolescent↗
PubMed2002

[Psoas abscess: 12 case reports].

Psoas abscess are rare. Primitives or secondary their clinical diagnosis is difficult. Imagery and especially computed tomography is fundamental. Treatment associates antibiotherapy and drainage. This drainage can be percutaneous or surgical (open surgery). The authors analyze in a retrospective way 12 cases of abscess of the psoas.

Adolescent↗
PubMed2002

Psoas abscess diagnosed at a Northern university hospital.

Abscess of the psoas muscle is an infrequent diagnosis at hospitals in Northern countries. We report on 16 patients who had this diagnosis during the period 1991-2001. Eight patients were immigrants who had previously been healthy and most of them had experienced symptoms for approximately 1 y. MRI or CT scans revealed spondylodiscitis in 6 of these patients and Mycobacterium tuberculosis was identified as the causative agent. With the exception of 1 patient who was exclusively treated with antituberculous agents, all 8 immigrant patients were successfully treated with antituberculous agents in addition to percutaneous drainage. The other 8 patients were Norwegians, 4 of whom had underlying conditions such as diabetes mellitus or drug abuse. The causative microorganisms were Staphylococcus aureus or Streptococcus spp., with the exception of M. tuberculosis in 1 case. The Norwegian patients had a more acute history of symptoms than the immigrant patients and 2 of them were in a septic condition on admittance. Two of the Norwegians died of serious infection; 5 were successfully treated with percutaneous drainage in addition to antibiotics and 1 was treated exclusively with antibiotic agents. The clinical history and microorganism associated with psoas abscess seemed to depend on whether or not the patient was an immigrant. Owing to increasing immigration, diagnosis of psoas abscess should be taken into account in Northern countries.

Adult↗
PubMedDate not supplied

[Bilateral epidural psoas abscess simulating bilateral proximal diabetic plexopathy].

We describe a diabetic woman with an epidural abscess and associated bilateral psoas abscesses which simulated the clinical course of diabetic bilateral proximal plexopathy. We emphasize three aspects: 1) the rarity of associated epidural abscess and bilateral psoas abscesses, 2) the rarity of the germ isolated (Streptococcus bovis), and 3) the diagnostic difficulties when both processes are associated, particularly in patients with an underlying disease that may simulate other common, clinical pictures.

Aged↗
PubMed1985

Psoas abscess in children.

In children, psoas abscess does not head the list in the differential diagnosis of the child who presents with a limp or lower abdominal pain. Therefore, the road to this diagnosis can be long and complicated leading to numerous studies and specialty consultations. Over a 7-year period, seven psoas abscesses have been drained surgically. All were Staphylococcal though one was mixed. In each case, the original admitting diagnosis was that of septic arthritis of the hip. In general, this diagnosis was ruled out by negative hip aspirations and bone scans. Often, the severity of symptoms led to persistent evaluation with noninvasive tests such as gallium scan, intravenous pyelogram, or barium enema. Though these tests were often suggestive, a positive ultrasound or CT scan was the key studies diagnostic enough to warrant surgical exploration and drainage. During this time period, there have been no negative explorations for psoas abscess. Upon surgical drainage, all patients improved, with subsequent recovery of hip function. The child who presents with a limp or painful hip should be considered for ultrasonography or computerized tomography once hip pathology is ruled out. We feel that the results of other tests such as gallium scan, IVP, or barium enema are not sufficiently specific to indicate surgery.

Abscess↗
PubMed2000

[Psoas abscess caused by nephrolithiasis with perirenal abscess complicated with pleural effusion].

Left pleural effusion was found in a 60-year-old woman in whom chest radiography performed during a physical check up revealed no abnormality. Abdominal CT scanning revealed an abscess in the left psoas muscle. The psoas abscess was eliminated temporarily by drainage under ultrasonographic guidance and by the administration of antibiotics, but recurred one month later. A stag-horn renal stone considered to have caused the psoas abscess by formation of a perirenal abscess was eliminated by left nephrectomy. It is suggested tentatively that the psoas abscess might have been the cause of the pleural effusion.

Abscess↗
PubMedDate not supplied

[Tuberculous psoas abscess in a patient with HIV].

Psoas abscess is an uncommon disease with varied etiology. The most common pathogen in primary abscess is Staphylococcus aureus. Crohn's disease is the most common cause of a secondary abscess. Recently, drug abuse and HIV infection have become important risk factors in identification of a patient with psoas abscess. Mycobacterium tuberculosis is considered an extremely rare cause of psoas abscess, but it is reported in HIV patients. Physical presentation is insidious; classical symptoms are pain and fever. Computed tomography (CT) is the most important tool for diagnosis. Preferred treatment is percutaneous drainage guided by CT. Open surgical drainage should be reserved if percutaneous drainage fails, if possible by extraperitoneal approach; in secondary abscess, the transperitoneal approach is preferred to correct the possible disease.

Adult↗
PubMed2003

[Psoas abscess after anterior spinal fusion].

We present 3 cases of secondary psoas abscess after anterior spinal fusion. Psoas abscess is still a rare clinical entity. It is often associated with unspecific symptomatology and may present as late infection. A high index of suspicion is required for early diagnosis and treatment. Computed tomography is the imaging technology of choice. Treatment includes open abscess drainage and antibiotic therapy. In secondary psoas abscess causative treatment of the primary infection focus is essential. For psoas abscess after anterior spondylodesis this includes treatment of a deep wound infection. Predisposing factors for postoperative infection are large implants, bone grafting, long operating times, previous spinal surgery, immunodeficiency and metabolic disorders. Usually several operations are necessary to eradicate infection. As long as stability is guaranteed, implant materials should be removed. Continuing antibiotic therapy for 2-3 weeks after normalization of infectious parameters is suggested. Delayed therapy results in an increase of the morbidity and mortality of psoas abscess.

Adult↗
PubMed2000

Primary pyogenic psoas abscess in children.

Primary pyogenic psoas abscess, although quite a common condition, particularly in the tropics, is often overlooked as a clinical entity, probably because a psoas abscess has been traditionally associated with tuberculous spondylitis. The abscess is easily diagnosed by ultrasonography (US). Treatment by open drainage and antibiotics effective against Staphylococcus aureus results in complete reversal of symptoms and signs. In our series of 55 cases in the pediatric age group (0-12 years), pain and flexion at the hip were the most frequent clinical features at presentation. US was diagnostic in all cases in which it was performed. All except 1 patient showed complete resolution with extraperitoneal drainage, antibiotics, and skin traction. Although 4% of the cases were associated with suppurative external-iliac lymphadenitis, the remaining ones arose de novo in the psoas sheath, suggesting a primary pyomyositis of the psoas muscle.

Anti-Bacterial Agents↗
PubMed2006

[Pyogenic psoas abscess: six cases and review of the literature].

PURPOSE: Psoas abscess is a rare disease in developed countries. Its diagnosis is difficult and any delay could lead to a worsen prognosis. The aim of this study is to determine the best diagnostic and therapeutic practices. METHODS: A retrospective study of psoas abscess that occurred during six months was performed. RESULTS: Six cases of secondary psoas abscess are reported. They were associated with spondylodiscitis in three cases, arthritis and gynaecologic infection in the three remaining cases. Anatomic diagnosis was performed by tomodensitometry. Microbiologic diagnosis was obtained by blood culture or direct puncture of the abscess. Antibiotics were associated with percutaneous drainage in two cases, with simple puncture in one case, and with surgery in one case. A local improvement w observed in all cases. The oldest patients presented the worst complications which were not directly caused by the abscess. CONCLUSION: Physicians must be aware of psoas abscess because of their increasing incidence. Despite the fact that digestive pathologies are the main cause of secondary psoas abscess, bone infections, particularly spine infections, should be taken into consideration. Tomodensitometry guided puncture or percutaneous drainage are of diagnostic and therapeutic interest. Infectious samples must be taken before starting antibiotics, which have to be efficient against Gram negative bacillus, anaerobes and Staphylococcus aureus. Surgery must be quickly performed when the primary infection localisation need it, in case of voluminous abscess or when antibiotics and drainage are inefficient.

Adult↗
PubMed1997

Psoas abscess: making an early diagnosis in the ED.

The variable and nonspecific presentations of psoas abscess, as well as its infrequent incidence in the emergency department (ED), can result in delayed diagnosis or misdiagnosis. Previous reports have not discussed the diagnostic difficulties of psoas abscess from the viewpoint of emergency physicians (EPs), especially in light of the widespread use of ED ultrasonography. This report describes a 1-year experience between November 1993 and October 1994, during which 10 ED patients were diagnosed to have psoas abscess; in 7 cases, diagnoses were established in the ED. Patients' mean age was 64.6 years (range, 46 to 76). Pain was the most frequently encountered symptom (80%), with 5 patients (50%) complaining of flank pain. The triad of fever, flank pain, and limitation of hip movement, which is specific for psoas abscess, was present only in 3 patients (30%). The mean duration of symptoms was 10.6 days (range, 1 to 30 days). The mean time spent to establish the diagnosis was 1.7 days (range, 0 to 7 days). The diagnosis of psoas abscess was established by ultrasound in 6 patients, by computed tomography (CT) in 3 patients, and by surgery in 1 patient. Four patients who presented with either sepsis and nonspecific abdominal/flank pain or sepsis and thigh swelling were diagnosed to have psoas abscess by ultrasound performed by EPs. Only 3 patients were admitted to the ED with an initial diagnosis of psoas abscess. The remaining 7 had the following initial ED diagnoses: 2, fever of unknown origin; 2, septic shock; 1, shock; 1, sepsis; and 1, peritonitis. All but one had manifestations of sepsis. Two patients died of septic shock; these two patients had failed to be drained well. This report also includes a discussion of the role of EPs and ultrasonography in the diagnosis of psoas abscess. With their alertness and their expertise in ultrasonographic techniques, EPs can make an immediate diagnosis and arrange an early drainage procedure. For patients with sepsis of unknown origin, prolonged fever of unknown origin, and some specific manifestations suggestive of psoas abscess, the screening ultrasound should scan not only abdominal solid organs but also peritoneal cavity and retroperitoneal space. In addition, a flow chart is presented for facilitating the diagnosis of psoas abscess in the ED.

Aged↗