Hyperdensity of recent hemorrhage at body computed tomography: incidence and morphologic variation
Body computed tomographic (CT) scans were reviewed in 73 patients with hematomas of recent onset. The incidence, extent, and morphologic variation of regions of hyperdensity on precontrast scans were assessed. Of the 73 hematomas 55 (75%) exhibited regions of localized or diffuse hyperdensity. Only one of the 80 (1.25%) control lesions showed relative hyperdensity that could not be explained by obvious calcification, bone fragments, or diminished density of the organ of origin. Predominant hyperdensity throughout the lesion was present in 35 (48%) of the hematomas and l6 (22%) of these were homogenous in texture. Hyperdensity at CT was due to the high hemoglobin content of retracted clot or sedimented blood. The various patterns seen can be related to sequential changes occurring in blood following hemorrhage. Relative hyperdensity and its variations seen on precontrast scans are useful diagnostic signs of recent hemorrhage.
- Research Organization:
- St. Louis Medical Center, MO
- OSTI ID:
- 6600372
- Journal Information:
- Radiology; (United States), Journal Name: Radiology; (United States) Vol. 148:3; ISSN RADLA
- Country of Publication:
- United States
- Language:
- English
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550800 -- Morphology
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
ABDOMEN
BODY
BODY AREAS
CHEST
COMPUTERIZED TOMOGRAPHY
DENSITY
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
EXTERNAL IRRADIATION
HEMATOMAS
HEMORRHAGE
IRRADIATION
MORPHOLOGICAL CHANGES
PATHOLOGICAL CHANGES
PATIENTS
PHYSICAL PROPERTIES
SYMPTOMS
TOMOGRAPHY
WHOLE-BODY IRRADIATION