Telangiectatic oncocytoma: a previously undescribed variant of renal oncocytoma.

Abstract:

OBJECTIVES:To identify, describe, and investigate the clinical, radiologic, and pathologic features of 8 cases of telangiectatic oncocytoma. METHODS:Fifty-three consecutive renal oncocytomas were reviewed for the telangiectatic pathologic features that were subsequently correlated with the demographic, clinical, and radiographic findings. RESULTS:Telangiectatic oncocytoma accounted for 15% of the 53 renal oncocytomas collected in the past 7 years in our institution. On radiology, almost all presented as an enhancing mass and were suspicious for or consistent with a renal malignant tumor. Grossly, the tumors ranged from 2.4 to 6.0 cm (mean, 3.5 cm) and macroscopically were hemorrhagic spongy or multicystic masses without a central stellate scar. Microscopically, they were characterized by variably sized blood-distended spaces (<0.1-mm to 2- to 3-mm blood lakes) lined by typical oncocytoma cells and without evidence of degenerative changes. CONCLUSIONS:With its unique radiologic and pathologic presentations in comparison with classic renal oncocytoma, it is important to recognize this new variant of renal oncocytoma.

journal_name

Am J Clin Pathol

authors

Xiao GQ,Ko HB,Unger P

doi

10.1309/AJCP9HDXYB2WYYJX

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

103-8

issue

1

eissn

0002-9173

issn

1943-7722

pii

140/1/103

journal_volume

140

pub_type

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