Premium
Sonographic appearances of adrenal schwannomas
Author(s) -
Zhou Wei,
Zhu Ying,
Zhang Lu,
Xu Shangyan,
Zhan Weiwei
Publication year - 2019
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.22644
Subject(s) - echogenicity , medicine , vascularity , calcification , radiology , homogeneous , ultrasound , schwannoma , magnetic resonance imaging , blood supply , adrenal gland , hypervascularity , pathology , surgery , physics , thermodynamics
Abstract Objective To evaluate the sonographic ultrasound (US) appearances of adrenal gland schwannomas. Materials and Methods This was a retrospective analysis of 15 cases of schwannomas involving the adrenal gland. The following US features were assessed: size, border, echogenicity, homogeneity, intralesional cystic necrosis, presence of septa, intralesional calcification, posterior acoustic enhancement and blood supply. Results Of the 15 tumors, seven (46.7%) were located on the left side, and the remaining eight (53.3%) on the right side. The most frequent US appearance of adrenal schwannoma was a single, well‐defined and isoechoic mass. The internal echotexture was homogeneous in 2 cases, and heterogeneous in 13 cases, with intralesional cystic areas ( n = 11), septa ( n = 10) or calcifications ( n = 6). Posterior acoustic enhancement was seen in 12 of the 15 cases (80%). On color Doppler US, 86.7% (13/15) of the lesions did not show any vascularity. Conclusions Adrenal schwannomas usually present on US as well‐defined isoechoic masses often with posterior acoustic enhancement, cystic necrosis with septa and poor blood supply. These appearances should suggest the diagnosis of adrenal schwannomas. Nevertheless, additional information from laboratory tests and CT or MR imaging may be required to avoid unnecessary surgery.