Morio et al., "Prevalence of the reversed halo sign
in neutropenic patients compared with non-neutropenic patients: data from a single-centre study involving 27 patients with pulmonary mucormycosis (2003-2016)," Mycoses, vol.
The qualitative variables like echogenicity, calcifications, halo sign
and vascularity patterns were presented as frequency, percentage and proportions.
The halo sign
and peripancreatic fluid: useful CT signs of hypovolaemic shock complex in adults.
Reversed halo sign
on computed tomography: state-of-the-art review.
Pathophysiological implication of reversed CT halo sign
in invasive pulmonary mucormycosis : A rare case report.
The halo sign
is a special computed tomography (CT) finding consisting of a macronodule surrounded by a perimeter of ground-glass opacity [35,36].
High-resolution CT visualization of the halo sign-indicative of a hemorrhagic pulmonary nodule-is an early sign of IPA with high sensitivity and specificity (6); however, differential diagnosis of the halo sign
is quite complex, as it may be observed as a result of infection with other microorganisms [(Candida spp., mucormycosis, cryptococcosis, cytomegalovirus (CMV), herpes simplex virus (HSV)] and other diseases, including Wegener granulomatosis, pulmonary metastases of hypervascular tumors, and Kaposi's sarcoma (7), (8).
Historically, the fat halo sign
has been associated with patients suffering from chronic inflammatory bowel disease.
(3) This appearance has also been dubbed the "reversed halo sign
" (Figures 1 through 4).
ATLANTA -- The presence of a "halo sign
" on a CT scan of the bowel is a probable sign of noncancerous disease, Dr.
A computed tomography (CT) scan of the chest revealed a 3 cm x 3 cm, well-defined and round mass surrounded by a halo of ground-glass attenuation, namely the halo sign
, in the posterior basal segment of the right inferior lobe (Fig.