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Biomedical subjects

C R Goldfarb

Publications and source records attributed to C R Goldfarb.

At least 19 recordsLinked to original sources
PubMed1997

Gallium scanning in the 'new' tuberculosis.

PURPOSE: To evaluate the findings and usefulness of Ga-67 scanning in recent cases of tuberculosis (TB). MATERIALS AND METHODS: The authors reviewed chest x-ray films and Ga-67 citrate scans of 52 patients with culture-confirmed infection caused by Mycobacterium tuberculosis treated after 1988. RESULTS: Ga-67 scans were positive in every case, delineating upper lobe lung lesions in 6 patients, diffuse involvement or lower lobe disease in 34 patients, and intrathoracic adenopathy in 15 patients. Pulmonary parenchymal lesions were not detected on x-ray films in 3 patients, and nodal lesions were not apparent in 3 patients. In addition, in 6 patients cervical adenopathy was detected by Ga-67 scintigraphy; 4 underwent biopsy with culture confirmation. CONCLUSIONS: Ga-67 scanning is more sensitive than routine chest radiography for detection of both TB parenchymal lung involvement and adenopathy. Ga-67 imaging facilitates the choice of biopsy sites by identifying accessible peripheral nodes. Typical patterns in recent cases of TB differ significantly from the upper lobe predilection of classical TB.

Adult↗
PubMed1997

Can (99m)technetium methylene diphosphonate bone scans objectively document costochondritis?

STUDY OBJECTIVES: To determine whether bone imaging with 99mTc methylene diphosphonate is a specific method of making the diagnosis of costochondritis in patients with chest pain who rule out for myocardial infarction. DESIGN: Nonblinded prospective controlled study in 20 patients and 10 control subjects. SETTING: Inpatient medical service of a tertiary teaching hospital. PATIENTS: Two hundred consenting patients admitted to the hospital with chest pain and suspected myocardial infarction were examined. Those in whom acute myocardial infarction was ruled out were evaluated for the clinical signs of costochondritis, ie, tenderness over one or more costochondral junctions. Twenty patients who met the clinical criterion gave informed consent and were subjected to bone imaging. Ten control subjects with cancer who did not have clinical signs of costochondritis underwent bone imaging to rule out metastatic disease (normal in all cases). INTERVENTIONS: Bone imaging with I.V. 99mTc methylene diphosphonate. MEASUREMENTS: Bone scans of the investigative patients and the control subjects were read by two independent nuclear medicine specialists. RESULTS: Sixteen of the 20 patients with clinically diagnosed costochondritis showed increased technetium uptake at all costochondral junctions bilaterally; six of them also had increased uptake elsewhere on the chest wall (sternum, manubrium, or first rib). All 10 of the control patients likewise showed increased technetium uptake at all costochondral junctions bilaterally. CONCLUSIONS: Bone imaging with 99mTc methylene diphosphonate is not a specific method of making the diagnosis of costochondritis.

Bone Neoplasms↗
PubMed1995

Axillary lymph node uptake of technetium-99m-MDP.

UNLABELLED: We sought to determine the frequency and significance of axillary lymph node visualization on bone scans performed with diphosphonates. METHODS: Consecutive 99mTc-methylene diphosphonate (99mTc-MDP) bone scans (2435) were inspected for axillary soft-tissue uptake. In positive cases, the results of physical examination, correlative imaging studies and serial bone scans were recorded, as was the site of venipuncture. RESULTS: Forty-eight studies (2%) showed axillary uptake ipsilateral to the injection site. Extravasation of tracer, documented by focal activity near the injection site, was present in every case. There was no association with axillary adenopathy, mass, induration or radiographically visible calcification. On some images, foci adjacent to the axilla were superimposed on the rib, scapula, or humerus. The bone-to-background ratio was frequently reduced; repeat imaging after 1-2 hr usually improved osseous detail. CONCLUSION: Ipsilateral axillary lymph node visualization due to extravasation of 99mTc-MDP is frequently associated with additional foci superimposed on osseous structures simulating pathology. Delayed skeletal uptake is common in such cases and necessitates a greater time interval between injection and imaging.

Axilla↗
PubMed1994

Bilateral osteomyelitis due to intraosseous infusion: case report and review of the English-language literature.

Intraosseous infusion, a mode of peripheral access largely abandoned in the 1940s and 1950s, is becoming increasingly popular in the setting of pediatric crisis. While complications are rare when the procedure is properly performed, the risk of osteomyelitis increases with prolonged infusions. We present a case of bilateral osteomyelitis secondary to intraosseous infusion.

Humans↗
PubMed1990

Gallium-67 imaging in candidal esophagitis.

Ga-67 scanning has been used to evaluate esophageal carcinoma. It has demonstrated candidal infection in other body sites and, in one previous case, in the esophagus. The authors present a case of diffuse esophageal uptake of Ga-67 in esophageal candidiasis.

Adult↗
PubMed1990

Scintigraphic pattern of pneumothorax complicating Pneumocystis carinii pneumonia in patients with AIDS.

Spontaneous pneumothorax is a serious though infrequently reported pulmonary complication of AIDS. An unsuspected lung collapse was discovered via gallium scintigraphy for the study of Pneumocystis carinii pneumonia. Neither the pneumonia nor the pneumothorax were apparent on the most recent chest roentgenogram. In evaluating gallium images during the work-up of AIDS patients with associated pulmonary pathology, the possible complication of lung collapse should be considered. If pneumothorax is suspected on gallium imaging, a chest roentgenogram in expiration must be obtained for prompt delineation of this serious, yet correctable, condition.

Acquired Immunodeficiency Syndrome↗
PubMed1988

Lymphocytic interstitial pneumonitis: a cause of pulmonary gallium-67 uptake in a child with acquired immunodeficiency syndrome.

Lymphocytic interstitial pneumonitis (LIP) is currently recognized as a frequent pediatric manifestation of the acquired immunodeficiency syndrome (AIDS). We report the gallium scan findings in a 3-yr-old girl with this disorder and review its clinical, radiologic, and pathologic features. LIP must be a prime consideration in the differential diagnosis of diffuse pulmonary gallium uptake in pediatric AIDS patients. Further experience will afford greater perspective on the diagnostic role that nuclear medicine will ultimately play in this disease.

Acquired Immunodeficiency Syndrome↗