Biomedical subjects
Publications and source records attributed to R G Haddad.
A symptomless 58 year old man had an eosinophilic granuloma of the lung that presented as a solitary pulmonary nodule rather than the usual diffuse reticulonodular shadow on the chest radiograph. Only one previous case presenting in this way has been described.
Low back pain is one of the commonest disorders, yet is the most confusing. The cost in work-time lost and in the search for and treatment of its many causes amounts to billions of dollars annually. The traditional techniques for anatomic visualization have been plain-film radiography and myelography, but they have limitations. The development of computed tomography and magnetic resonance imaging have substantially improved anatomic imaging. However, invasive procedures, such as discography, percutaneous nerve-root blocking and percutaneous facet injection, may be helpful in patients with disabling pain in whom noninvasive methods give negative findings, show abnormalities that do not correlate with the symptoms or identify multiple sites of disease. The invasive procedures are believed by some to be associated with too many complications. We have attempted to clarify the strengths and weaknesses of the currently available methods of investigating low back pain and the indications for their use.
Stress fractures usually present with vague clinical features and delayed radiographic findings. A patient with a longitudinal stress fracture of the tibia is described here. Computed tomographic images, perpendicular to the fracture, were diagnostic while plain radiographs and scintigraphy showed nondiagnostic changes due to an unexpected fracture pattern.
The purpose of this prospective study was to compare arthroscopy with arthrography in the diagnosis of ulnar wrist pain. Thirty-seven consecutive patients with ulnar wrist pain but normal routine and stress radiographs had dynamic and static radiocarpal arthrograms (R.G.H.) and arthroscopy (J.H.R.) performed. Sixteen arthrograms demonstrated a leak of contrast into the distal radioulnar joint. Arthroscopy demonstrated a perforation of the triangular fibrocartilage complex in all 16. Seven arthrograms demonstrated a leak of contrast into the midcarpal joint. Arthroscopy demonstrated lunotriquetral instability in two and no abnormality in five. Seventeen arthrograms showed no abnormality. Arthroscopy confirmed no abnormality in nine but also demonstrated seven triangular fibrocartilage perforations and one case of isolated lunate chondromalacia. Arthroscopy findings were confirmed in eight patients who underwent a subsequent arthrotomy. Radiocarpal arthroscopy is superior to arthrography in the diagnosis of chronic ulnar wrist pain.
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The Budd-Chiari syndrome is an uncommon condition in which hepatic venous outflow is obstructed by thrombosis of the major hepatic veins. Many of the cases are idiopathic, but it has been described in association with vena caval webs, abdominal trauma, retroperitoneal neoplasms, and hypercoagulable states. A patient with systemic lupus erythematosus (SLE) who developed the Budd-Chiari syndrome with inferior vena cava thrombosis led to a review of the possible association between SLE and the Budd-Chiari syndrome. The therapy of the Budd-Chiari syndrome with associated vena cava thrombosis is also discussed.
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Explore the source record for details and available documents.