Fatty bronchogram: a sign of cystic teratoma rupture in the lung.
A 47-year-old man was admitted to our hospital for septic fever. Multidetector computed tomography showed a pulmonary cavitated consolidation that was partially filled by low-density material and an interrupted rim of soft tissue in adjacent mediastinum, lining an inhomogeneous fat density area. Lung consolidation presented a bronchogram fluid sign with a -40 Hounsfield unit density value, which indicated a fatty bronchogram. Mediastinal cystic teratoma rupture in the lung was derived from a bacterial infection, with the lipoid material pouring into the lung and its drainage bronchus.
Department of Diagnostic Imaging, AORN Monaldi, Via Leonardo Bianchi, Naples 80131, Italy.
G
G
Rossi
F M
FM
Ronza
A
A
Porto
N
N
De Rosa
D000273:Adipose Tissue / Q000000981:diagnostic imaging / Q000473:pathology; D001707:Biopsy, Needle; D001995:Bronchography / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods; D009367:Neoplasm Staging; D012422:Rupture, Spontaneous / Q000000981:diagnostic imaging / Q000601:surgery; D018805:Sepsis / Q000175:diagnosis / Q000209:etiology; D013724:Teratoma / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D013908:Thoracotomy / Q000379:methods; D016896:Treatment Outcome