PURPOSE: To document the expected frequency, location, and size of pedal abscesses in patients with advanced foot infection. MATERIALS AND METHODS: Images obtained at contrast material-enhanced magnetic resonance (MR) imaging (at 1.5 T) of 161 feet of 51 women and 107 men (mean age, 58.5 years; 82.3% had diabetes) who ...

OBJECTIVE: The objective of our study was to determine the current role of percutaneous CT-guided drainage as an alternative to surgical treatment of splenic abscesses. CONCLUSION: Splenic abscess is an uncommon entity that can be treated percutaneously. CT-guided drainage of splenic abscess seems to be a safe and effective alternative ...

This study was performed to investigate lesions with ring-like thallium-201 (201Tl) uptake and to determine whether SPECT provides any information in differential diagnosis. METHODS: A total of 244 201Tl SPECT images were reviewed. In each study, early (15 min postinjection) and late (3 hr) brain SPECT images were obtained with ...

BACKGROUND AND PURPOSE: Discriminating pyogenic brain abscesses from cystic or necrotic tumors is sometimes difficult with CT or MR imaging. We compared findings of proton MR spectroscopy ((1)H-MRS) with those of diffusion-weighted imaging to determine which technique was more effective for this differential diagnosis. METHODS: Fourteen patients (necrotic or cystic ...

The purpose of this article is to review the imaging characteristics of musculoskeletal tuberculosis. Skeletal tuberculosis represents one-third of all cases of tuberculosis occurring in extrapulmonary sites. Hematogenous spread from a distant focus elsewhere in the body is the cornerstone in the understanding of imaging features of musculoskeletal tuberculosis. The ...

Diagnostic ultrasound is used widely to identify the presence of fluid collections preoperatively. Although its role in other parts of the body is well established, this report describes the technique of using diagnostic ultrasound intraoperatively to aid drainage of a large fascial space abscess in the head and neck. Following ...

The differential diagnosis between brain abscesses and necrotic tumors such as glioblastomas is sometimes difficult to establish by conventional computed tomography and magnetic resonance imaging. Combined proton magnetic resonance spectroscopy (1H-MRS) and diffusion-weighted magnetic resonance imaging (DWI) were used to establish the preoperative diagnosis of brain abscess and glioblastoma. DWI ...

The mortality associated with undrained intra-abdominal abscesses is high. Computed tomography-guided percutaneous drainage (CT-PD), a minimally invasive technique, allows a drainage catheter to be inserted into fluid collections throughout the body with minimal risk. We described two neutropenic patients with intra-abdominal abscesses treated with CT-PD after they failed to respond ...

Cross-sectional imaging, in particular CT, has become the main method of detecting abdominal collections. Indium-labelled white-cell scintigraphy and gallium scintigraphy are reserved for patients in whom there is a high clinical suspicion of abdominal sepsis but CT has not revealed a source of sepsis. Scintigraphy is also used in patients ...

A 57-year-old man was admitted to our hospital because of high fever and generalized tonic seizure. Brain magnetic resonance imaging (MRI) delineated multiple abnormal intensity areas. Thallium-201 (201Tl) scintigraphy revealed abnormal uptake in the brain. The imaging findings did not allow definitive exclusion of brain tumor, even though brain abscess ...

A58-year-old man suffered from acute disseminated encephalomyelitis (ADEM) after dengue fever. ADEM has not been described as the cause of neurological complications in dengue fever. However, the increasing use of magnetic resonance imaging in endemic areas may help to identify ADEM as being responsible for neurological complications in dengue fever.

Pyomyositis is common in the tropics but rarely reported in temperate climates. This disease may give rise to obscure, non-specific, or misleading signs and symptoms. Delayed diagnosis and treatment may lead to death. The most common pathogen is Staphylococcus aureus. We analyzed 8 cases treated in the Tri-Service General Hospital ...

We studied chronological magnetic resonance spectral changes in brain abscesses before and after medical and/or surgical treatment. We examined five patients with MRI imaging and (1)H magnetic resonance spectroscopy (MRS) on two or more occasions, using two volume-of-interest patterns, and saw chronological changes related to the evolution of the abscess. ...

The perinephric spaces consist of the subcapsular, perirenal, anterior and posterior pararenal spaces. Fluid may collect in one or more of these compartments; this can be readily demonstrated by cross-sectional imaging, particularly computed tomography (CT). This pictorial review illustrates the radiological manifestations of perinephric fluid collections with their differential diagnosis ...

In this paper, we describe a case of an immunocompetent patient with cerebral nocardiosis. The onset was with loss of strength, paresthesia and focal epilepsy of the left arm. MRI showed on T2-weighted sequences a hyperintense central area of pus surrounded by a well-defined hypointense capsule and surrounding edema; on ...

We report an unusual child with sickle cell disease, in which osteomyelitis of the sternum and clavicle was diagnosed at the same time. The standard x-ray failed to demonstrate the lesion. Magnetic resonance imaging was very helpful in locating the site and degree of involvement. We recommend the use of ...

Emphysematous (gas-forming) infections of the abdomen and pelvis represent potentially life-threatening conditions that require aggressive medical and often surgical management. The initial clinical manifestation of these entities may be insidious, but rapid progression to sepsis will occur in the absence of early therapeutic intervention. Conventional radiography and ultrasonography are often ...

The aims of this study were to determine the pathways of odontogenic infection spread into the submandibular space and their relationship to the clinical symptoms. Computerized tomography (CT) and magnetic resonance (MR) images of 33 patients with submandibular involvement were analyzed. The spread of infection was evaluated by lateral asymmetry ...

Diffusion-weighted (DW) magnetic resonance imaging (MRI) has already gained status in the neuroradiological MRI approach of a patient suffering from a variety of neurological diseases. The clinical application of DW MRI in the evaluation of renal disease is not standard. This manuscript describes preliminary results of the application of DW ...

This is a case report of sigmoid diverticular abscess presenting as prostate abscess. Helical computed tomography (CT) scan revealed the prostate abscess but failed to demonstrate the underlying diverticular abscess. Colonic diverticular abscess can have many unusual presentations, and multiple imaging modalities may be required to reveal the underlying pathology. ...

BACKGROUND: Tubercular brain abscess (TBA) is a rare manifestation of CNS tuberculosis. It is characterised by an encapsulated collection of pus, containing viable tubercular bacilli without evidence of tubercular granuloma. PRESENTATION AND HISTORY: Patients may present with features of raised intracranial pressure and focal neurological deficit commensurate with the site ...

We describe a 41-year-old man with a 1-week history of nausea and vomiting 1 month after chemoembolization of a liver metastasis. The patient subsequently became febrile and developed right upper quadrant abdominal and midback pain. Findings of initial laboratory and imaging studies (a noncontrast computed tomographic [CT] scan and ultrasound) ...

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 immunodeficiency states in children may be sub-divided into two major groups; congenital (primary), and acquired (secondary). The spectrum of illness and imaging appearances are similar, regardless of the underlying cause of immunodeficiency. All immunodeficiency states are associated with an increased susceptibility to infection and neoplasia, with the lymphoproliferative disorders ...

The case of a 17-year-old girl who presented with a two-day history of absolute dysphagia secondary to a bulbar palsy due to a pre-pontine abscess is described. Rigid oesophagoscopy was normal and a neurology consultation suggested a central cause for her dysphagia. However the diagnosis was delayed because a computed ...

A 56-year-old female presented with transorbital penetrating injury caused by bamboo fragments, which resulted in brain abscess 2 weeks after the injury. Initial computed tomography (CT) of the head did not reveal the foreign bodies. However, follow-up CT demonstrated a well-defined hyperdense abnormality of 1.0 cm length in the left ...

In this report, we describe the appearance of the spinal vertebral body and epidural abscesses in a patient who underwent diffusion-weighted imaging of the spine and CT-guided aspiration of one of the abscesses. The abscesses were hyperintense relative to the surrounding tissues on diffusion-weighted images, and they appeared dark on ...

We demonstrate the usefulness of "near real-time" neuro-navigation by open MRI systems for guidance of stereotactic evacuation of intracranial abscesses. A 70-year-old patient was referred to our institution with an intracranial left temporal abscess. He presented with headache, senso-motor aphasia and mild right hemiparesis. The abscess (35 x 25 mm) ...

A 57-year-old man and a 45-year-old woman presented with cerebral abscesses. Diffusion-weighted magnetic resonance (MR) imaging and conventional MR imaging clearly showed the different stages of the course of the brain abscesses. As the abscess matured, the signal intensity of the center gradually increased to the typical high value with ...

RATIONALE AND OBJECTIVES: The authors' purpose was to elucidate the various computed tomographic (CT) and magnetic resonance (MR) imaging findings in intracranial aspergillosis. MATERIALS AND METHODS: Retrospective analysis of cranial imaging findings was performed in eight proved cases of central nervous system aspergillosis. The patients ranged in age from 17 ...

OBJECTIVE: To assess the role of computed tomography (CT) in the diagnosis of rib and lung involvement in tuberculous abscess in the retromammary region. DESIGN AND PATIENTS: Eight patients with tuberculous retromammary abscess were examined by CT and the findings were evaluated. A cold abscess (purulent collection with absence of ...

A 19-y-old woman presented with Proteus vulgaris meningitis as a complication of chronic otitis media. Despite treatment with ceftazidime and amikacin no clinical improvement was observed. Cranial MRI revealed right-sided mastoiditis/otitis media and venous sinus thrombosis. After mastoidectomy, repeat cranial MRI demonstrated abscess formation in the venous sinuses. The abscess ...

The aim of this study was to investigate the signal characteristics of the abscess wall and tumor wall on diffusion-weighted and perfusion-weighted images and thus to evaluate the feasibility of using combined MR diffusion and perfusion imaging to differentiate pyogenic cerebral abscess from infected brain tumor. The tumor wall of ...

Investigators have used various techniques and radionuclides such as 51Cr and 32P-diisofluorophosphate to label blood cells and to study cell survival. Early studies also used these radionuclides to label human leucocytes for cell survival by in-vitro counting. But external imaging could not be done with these agents. Starting with the ...

The aim of this study was to compare the performance of the CT and the water-soluble contrast enema (CE) in the diagnosis and the severity of acute left-colonic diverticulitis, and to recognize the impact of CT during the acute phase and after a first acute episode successfully treated medically. From ...

A 6-month-old alpaca presented for lethargy, failure to thrive and leucocytosis. Diagnostic procedures, including thoracic ultrasound, radiographs and a computed tomography scan, were used to document a thoracic mass. Based on appearance and ultrasound-guided aspiration of purulent material, the mass was determined to be a large abscess. The abscess was ...

SUMMARY: Intraoperative magnetic resonance imaging provides the surgeon with powerful, high-resolution, real-time imaging. Procedures may be performed with minimal invasion, with the benefit of reduced tissue damage, improved wound healing, and a better cosmetic result. The authors present a case of a leukemic pediatric patient with a few large, deeply ...

BACKGROUND: There is considerable overlap between the clinical presentation and radiological appearances of hepatic abscesses and hepatic metastases. The distinction is important given the treatable nature of hepatic abscesses compared with most forms of metastatic disease and the very high morbidity and mortality associated with untreated or missed pyogenic abscesses. ...

Magnetic resonance imaging was performed on an eight-year-old, neutered female German Shepherd dog with a history of acute depression, inappetence, and hyperthermia. A lesion in the cerebrum was suspected. Possible differential diagnoses were meningoencephalitis, neoplasia, and vascular lesion (infarction, bleeding). A ring enhancing lesion was found in the basal ganglia ...

BACKGROUND AND PURPOSE: MR imaging features are nonspecific with respect to the causative organism for patients with brain abscesses. On the basis of the hypothesis that the biochemical environment depends on the infecting organism and might be different in tuberculous compared with pyogenic brain abscesses, this study attempted to determine ...

We report a case of recurrent pyogenic vertebral osteomyelitis associated with type 2 diabetes mellitus. A 51-year-old male was admitted to our hospital because of lumbago and general fatigue, with multiple ulcers on the soles of his feet. Staphylococcus aureus was isolated from peripheral blood and the foot ulcers, and ...

Rhinocerebral mucormycosis (RCM) is an aggressive fungal infection with a high mortality rate. It frequently develops in patients with uncontrolled diabetes mellitus or immunocompromised patients. RCM typically presents in a rapidly fulminant manner with headache, fever, mucosal necrosis, and ophthalmic symptoms. Although the definitive diagnosis is achieved by histopathological examination, ...

Because Pseudallescheria boydii vertebral osteomyelitis is rare and frequently resistant to available antifungal agents, the proper treatment of this lesion has not been defined. To better determine the best treatment of this lesion, the authors evaluated a case P. boydii vertebral osteomyelitis and reviewed the literature. A 48-year-old man had ...

OBJECT: The authors present their experience with neurosurgical procedures requiring real-time imaging feedback such as aspiration of a cystic structure or abscess cavity, decompression of hydrocephalic ventricles, management of arachnoid cysts, and installation of permanent or temporary drainage conduits, in which interactive magnetic resonance (MR) imaging guidance was used to ...

We report on a 4-year-old boy adopted from Paraguay who presented with an acute onset of thigh pain. Initial clinical, imaging, and histopathologic findings suggested florid osteomyelitis. However, the development of pancytopenia on intravenous antibiotics prompted further investigation and the ultimate diagnosis of Gaucher disease. In retrospect, characteristic changes on ...

An 83-year-old man with a lifelong history of intermittent otorrhea and hearing loss was referred for management of a facial paralysis of 3 weeks' duration. Computed tomography (CT) of the head detected a neoplasm of the nasopharynx along with chronic otomastoiditis. A followup CT suggested the development of a nasopharyngeal ...

We present the case of a young child who developed a massive tuberculous abscess of the posterior fossa while being treated for pulmonary tuberculosis. Clinical improvement after surgical excision of the abscess was followed by recurrence of symptoms of acutely raised intracranial pressure on standard antituberculosis and corticosteroid therapy. Magnetic ...

Primary sternal osteomyelitis (PSO) is rare. In a 9-year-old boy with Staphylococcus aureus bacteremia, magnetic resonance imaging helped to promptly establish the diagnosis of PSO. Eleven previously reported cases are reviewed, emphasiz ing surgical drainage and antimicrobial therapy for optimal outcome. Magnetic resonance imaging may be superior to other imaging ...

Necrotizing fasciitis continues to occur due to beta-haemolytic streptococci but is now also recognized as being due to Vibrio spp. in fishermen and those in contact with warm water in the Gulf of Mexico and South-East Asia, including Hong Kong. Magnetic resonance image scanning has identified the extent of fasciitis ...

OBJECTIVE: To determine the accuracy and usefulness of computed tomography (CT) in diagnosis and management of lateral and deep neck infections METHODS: An 11-year retrospective review of 110 children (age range 1 months to 17 years) was conducted at a tertiary care children's hospital. RESULTS: Fifteen patients treated medically (8 ...