Dumbbell-shaped thoracic hibernoma: computed tomography and magnetic resonance imaging findings.
Hibernoma is an uncommon, benign soft tissue tumor that arises in brown adipose tissue. The computed tomography (CT) and magnetic resonance imaging (MRI) findings of hibernomas are similar to those of well-differentiated liposarcoma or angiolipoma. We report the unique appearance of a rare thoracic wall hibernoma, which appeared as a dumbbell-shaped lipomatous tumor across an intercostal region. A dynamic contrast-enhanced study on MRI revealed early enhancement, which corresponded to the branching low-signal intensity on T2-weighted images of the mass.
Department of Radiology, National Hospital Organization, Omuta Hospital, 1044-1 Tachibana, Omuta, 837-0911, Japan. kumazoehi@yahoo.co.jp
Hiroyuki
H
Kumazoe
Yoshinori
Y
Nagamatsu
Tatsuya
T
Nishi
Yusuke Norman
YN
Kimura
Takahiko
T
Nakazono
Sho
S
Kudo
D006801:Humans; D008067:Lipoma / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed