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Nuclear pseudoinclusions in fine‐needle aspiration cytology of hepatic angiomyolipoma: Case report
Author(s) -
Villari D.,
Grosso M.,
Vitarelli E.,
Tuccari G.,
Barresi G.
Publication year - 2000
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/(sici)1097-0339(200006)22:6<390::aid-dc12>3.0.co;2-m
Subject(s) - medicine , angiomyolipoma , pathology , cytology , cytopathology , epithelioid cell , nodule (geology) , malignancy , lesion , fine needle aspiration , immunohistochemistry , radiology , biopsy , kidney , paleontology , biology
A nodular lesion was found in the fourth segment of the liver in a 51‐yr‐old Caucasian woman and subjected to aspiration cytology. Smears exhibited solid sheets or small aggregates of epithelioid cells with numerous nuclear pseudoinclusions, scanty mature adipocytes, and red blood cells. With a presumptive diagnosis of angiomyolipoma, the patient underwent laparotomy with resection of the nodule; histologic and immunohistochemical findings confirmed the diagnosis, identifying the trabecular variant. Although the presence of nuclear pseudoinclusions has been previously reported in renal angiomyolipomas, this cytologic feature has not received adequate attention in liver localization, where only cell block samples have been reported. Therefore, when the typical different cellular components of angiomyolipomas are absent in cytologic smears, nuclear pseudoinclusions should not be regarded as a criterion of malignancy, but they may be considered as an additional nonspecific cytological feature in hepatic angiomyolipoma. Diagn. Cytopathol. 22:390–393, 2000. © 2000 Wiley‐Liss, Inc.