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Results for “Psoas Abscess”

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At least 793 records · Page 44Linked to original sources
PubMed2004

Pneumococcal psoas pyomyositis associated with complement deficiency.

A 4.5-year-old boy with complement deficiency developed infection of the psoas caused by Streptococcus pneumoniae. Pyomyositis of the psoas muscle is uncommon but should be included in the differential diagnosis of fever and lameness. The most useful diagnostic test is computed tomography guided needle aspiration, and underlying conditions should be sought.

Anti-Bacterial Agents↗
PubMed2003

Acute pyogenic sacroiliitis without predisposing conditions.

STUDY DESIGN: Clinical and imaging findings of patients diagnosed with pyogenic sacroiliitis were retrospectively analyzed. OBJECTIVES: To characterize the clinical and magnetic resonance features of patients with acute pyogenic sacroiliitis without the usually known predisposing conditions and to investigate the diagnostic value of magnetic resonance imaging in detecting the early stages of pyogenic sacroiliitis. SUMMARY OF BACKGROUND DATA: Pyogenic sacroiliitis is relatively uncommon, and accurate diagnosis is frequently delayed due to lack of awareness by clinicians and nonspecific clinical presentation. There have been few reports that have evaluated the clinical features of acute pyogenic sacroiliitis and investigated the diagnostic capabilities of magnetic resonance imaging in detecting pyogenic sacroiliitis in the early stages. METHODS: The clinical data of 9 patients (6 male, 3 female; average age 27.3 years) diagnosed with acute pyogenic infection of the sacroiliac joint were retrospectively analyzed. Magnetic resonance images as well as computed tomography of the sacroiliac joints were available in all cases. Seven of the patients underwent 99mtechnetium bone scans. RESULTS: All patients showed positive findings on magnetic resonance images, whereas 99mtechnetium bone scans were positive in six of seven patients. Eight patients responded well to treatment with intravenous antibiotic therapy, whereas one patient required debridement of the sacroiliac joint following conservative treatment. CONCLUSIONS: Both magnetic resonance imaging and technetium bone scanning are sensitive for localizing occult sites of bone inflammation. Magnetic resonance imaging may provide more useful information than bone scanning by screening for abnormalities in the sacroiliac joint region. With prompt appropriate antibiotic therapy, clinical improvement of patients can be expected.

Acute Disease↗
PubMed2004

Infected aortic aneurysms: imaging findings.

PURPOSE: To determine the imaging characteristics of infected aortic aneurysms. MATERIALS AND METHODS: Review of records of patients with surgical and/or microbiologic proof of infected aortic aneurysm obtained over a 25-year period revealed 31 aneurysms in 29 patients. This study included 21 men and eight women (mean age, 70 years). One radiologist reviewed 28 computed tomographic (CT) studies (22 patients underwent CT once and three patients underwent CT twice), 12 arteriograms (12 patients underwent arteriography once), eight nuclear medicine studies (six patients underwent nuclear medicine imaging once and one patient underwent nuclear medicine imaging twice), and three magnetic resonance (MR) studies (three patients underwent MR imaging once). Features evaluated included aneurysm size, shape, and location; branch involvement; aortic wall calcification; gas; radiotracer uptake on nuclear medicine studies; and periaortic and associated findings. The location of infected aortic aneurysms was compared with that of arteriosclerotic aneurysms. RESULTS: Aneurysms were located in the ascending aorta (n = 2, 6%), descending thoracic aorta (n = 7, 23%), thoracoabdominal aorta (n = 6, 19%), paravisceral aorta (n = 2, 6%), juxtarenal aorta (n = 3, 10%), infrarenal aorta (n = 10, 32%), and renal artery (n = 1, 3%). Two patients had two infected aortic aneurysms. CT revealed 25 saccular (93%) and two fusiform (7%) aneurysms with a mean diameter at initial discovery of 5.4 cm (range, 1-11 cm). Paraaortic soft-tissue mass, stranding, and/or fluid was present in 13 (48%) of 27 aneurysms, and early periaortic edema with rapid aneurysm progression and development was present in three (100%) patients with sequential studies. Other findings included adjacent vertebral body destruction with psoas muscle abscess (n = 1, 4%), kidney infarct (n = 1, 4%), absence of calcification in the aortic wall (n = 2, 7%), and periaortic gas (n = 2, 7%). Angiography showed 13 saccular aneurysms with lobulated contour in 10 (77%). Nuclear medicine imaging showed increased activity consistent with infection in six (86%) of seven aneurysms. MR imaging showed three saccular aneurysms. Adjacent abnormal vertebral body marrow signal intensity was seen in one (33%) of three patients. CONCLUSION: Saccular aneurysms (especially those with lobulated contour) with rapid expansion or development and adjacent mass, stranding, and/or fluid in an unusual location are highly suspicious for an infected aneurysm.

Adult↗
PubMed1996

Osteonecrosis in systemic lupus erythematosus, steroid-induced or a lupus-dependent manifestation?

Osteonecrosis (ON) is a well-known complication in patients with systemic lupus erythematosus (SLE) often associated with steroid therapy. In a cohort of 280 SLE patients followed over the last 10 years, seven patients developed symptomatic ON, one of them after septic arthritis of the hip. Two other patients developed ON several years after discontinuing steroids. One patient developed ON of both humeral and femoral heads within a few months after the diagnosis of SLE. When we compared the cumulative steroid doses taken by our patients with those described in other reports (43,700 mg and 45,300 mg, respectively), our patients received less steroids (38,834 mg). We found no increased frequency of Raynaud's phenomenon, leukopenia, anti-phospholipid antibodies, or a flare of SLE activity in our patients with ON, factors which have been reported to be associated with ON. Various pathogenic mechanisms, which could lead to ON in SLE patients are discussed.

Adrenal Cortex Hormones↗