Summary:A reliable measure to predict peripheral blood progenitor cell (PBPC) autograft CD34 + cell content is required to optimize the timing of PBPC collection. We prospectively examined the peripheral blood (

PTCP should be considered in the assessment of low platelet count. While decreasing the transfer time of blood specimens may decrease PTCP incidence, microscopic inspection of the blood smear may avoid erroneous diagnosis of thrombocytopenia.

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It is widely accepted that amyloidosis in Waldenström's macroglobulinemia (WM) is exclusively due to amyloid light-chain deposition. However, only a small number of previous reports have actually characterized the type of amyloid in WM. We now report the third patient with WM and amyloid A protein (AA) amyloidosis. This patient developed malabsorption, nephrotic syndrome, and orthostatic hypotension. AA was immunohistochemically demonstrated in the rectal biopsy. In conjunction with previous examples of AA amyloidosis, the present report raises the possibility that AA amyloidosis may also occur in WM patients.