Lawrence Edward Kass

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  • L Kass
  • American journal of clinical pathology
  • 1977
Utilizing a unique ability of homocysteine to form a yellow-brown precipitate with nickel chloride, a cytochemical test was developed in an effort to identify this amino acid. Among a variety of types of anemias studied, bright yellow-colored erythrocytes and erythroid precursors were found only in marrows from patients who had untreated pernicious anemia(More)
Society has a right to expect that all physicians possess basic knowledge of emergency care and the skills to manage acute problems. Competency in the care of acutely ill and injured patients is one of the fundamental exit goals of most medical schools as mandated by the Liaison Committee on Medical Education. Several groups have called for strengthening(More)
The Sysmex R-3000 (TOA Medical Electronics, Kobe, Japan) evaluates maturation of reticulocytes by quantitating the fraction of reticulocytes within low-, middle-, and high-fluorescence intensity regions. We defined the immature reticulocyte fraction (IRF) as the sum of the fraction of high-fluorescence intensity regions plus the fraction of(More)
A 65-year-old man presented with an episode of loss of consciousness associated with a fever and headache. His history was significant for 1 year of short-term memory loss. Computed tomographic scanning showed a third ventricular mass that was ultimately resected and pathologically confirmed as a colloid cyst. The patient's postoperative course was(More)
Eosinophilia and plasmacytosis of the bone marrow were found in a group of patients with newly diagnosed Hodgkin's disease. An attempt was made to correlate these cytologic findings with other modalities used in the staging of patients with Hodgkin's disease and believed to have prognostic importance, such as age, sex, histologic type of Hodgkin's disease,(More)
BACKGROUND Needle localization breast biopsy (NLBB) is the standard for removal of breast lesions after vacuum assisted core biopsy (VACB). Disadvantages include a miss rate of 0% to 22%, a positive margin rate of approximately 50%, and vasovagal reactions (approximately 20%). We hypothesized that clip migration after VACB is clinically significant and may(More)
Using the high resolution technique of isoelectric focusing in polyacrylamide gel, isoenzymatic components could be discerned in acid phosphatase extracted from normal human lymphocytes, granulocytes, monocytes, and platelets. For each cell type, distinctive isoenzymatic patterns of acid phosphatase activity could be observed. These studies provide further(More)