To assess concordant, discordant, and deferred diagnosis rates from frozen sections; to
determine reasons for discordance; to identify pathologic processes associated with discordant …

Fine-gauge (22-G) transbronchial needle aspiration (TBNA) has significantly added to the
diagnostic yield of FOB, and in some institutions has become routine in staging bronchogenic …

0 Objective—To develop a multi-institutional reference database of extraneous tissue (contaminants)
in surgical pathology. Design—In 1994, participants in the College of American …

To expand the clinical spectrum of ulcerative colitis-associated lung disease, we describe a
patient with panbronchiolitis associated with ulcerative colitis. In addition to his having a …

… Participants—Two hundred thirty-two North American institutions and one New Zealand
institution. Main Outcome Measures—The discordance and deferral rates of frozen section …

There is a spectrum of glomerular pathology in patients with severe lupus glomerulonephritis
(GN) that includes (1) severe segmental GN (SEG) with ≥50% of glomeruli involved by …

In 13 specimens of renal tissue from 11 patients, deposits of monoclonal immunoglobulin
light chains and continuous granular electron-dense material within tubular basement …

The nephrotoxicity associated with mercury may be manifested as either acute tubular necrosis
or an immune complex glomerulonephritis, depending upon the conditions under which …

A case of pulmonary vasculitis (Wegener's granulomatosis) is reported in which
immunoperoxidase studies demonstrated that the vascular lymphoid infiltrates were composed …

Pleural involvement with systemic amyloidosis has been reported rarely in the literature.
Diagnosis of this entity by percutaneous needle biopsy of the pleura has been described only in …