Glioma CT: Difference between revisions

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Revision as of 18:32, 22 September 2015

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2], Sujit Routray, M.D. [3]

Head CT scan may be diagnostic of glioma.

Head CT scan may be diagnostic of glioma.^[1]^[2]^[3]^[4]^[5]^[6]


Type of glioma	CT findings

Pilocytic astrocytoma	1. Large cystic component with a brightly enhancing mural nodule (67%) Non enhancing cyst wall (21%) Enhancing cyst wall (46%) 2. Heterogeneous, mixed solid and multiple cysts and central necrosis (16%) 3. Completely solid (17%)
Low-grade astrocytoma	1. Isodense or hypodense 2. Positive mass effect 3. No enhancement 4. Calcification is rare 5. Cystic component
Anaplastic astrocytoma	1. Variable enhancement 2. Regions of low attenuation 3. Positive mass effect
Glioblastoma multiforme	1. Irregular thick margins: iso- to slightly hyperattenuating (high cellularity) 2. Irregular hypodense centre representing necrosis 3. Marked mass effect 4. Surrounding vasogenic edema 5. Hemorrhage 6. Calcification is rare
Oligodendroglioma	1. Hypodense to isodense 2. Calcification (70-90%) 3. Hemorrhage 4. Overlying skull may show pressure erosion
Ependymoma	1. Coarse calcification is common (50%) 2. Cystic areas (50%) 3. Iso- to hypodense solid component 4. Heterogeneous enhancement 5. Hemorrhage

↑ Radiological findings of pilocytic astrocytoma. Radiopaedia.org 2015. http://radiopaedia.org/articles/pilocytic-astrocytoma
↑ Radiological findings of low grade infiltrative astrocytoma. http://radiopaedia.org/articles/low-grade-infiltrative-astrocytoma
↑ Radiological findings of anaplastic astrocytoma. http://radiopaedia.org/articles/anaplastic-astrocytoma
↑ Radiological findings of glioblastoma. http://radiopaedia.org/articles/glioblastoma
↑ Radiological findings of oligodendroglioma. http://radiopaedia.org/articles/oligodendroglioma
↑ Radiological findings of ependymoma. Radiopaedia.org 2015. http://radiopaedia.org/articles/ependymoma

@@ Line 18: / Line 18: @@
 [[Pilocytic astrocytoma]]
 | style="padding: 5px 5px; background: #F5F5F5;" |
-:1. Large cystic component with a brightly enhancing mural nodule (67%)
+:1. Large [[cystic]] component with a brightly enhancing mural nodule (67%)
 :* Non enhancing cyst wall (21%)
 :* Enhancing cyst wall (46%)
-:2. Heterogeneous, mixed solid and multiple cysts and central necrosis (16%)
+:2. Heterogeneous, mixed solid and multiple cysts and central [[necrosis]] (16%)
 :3. Completely solid (17%)
 |-
@@ Line 30: / Line 30: @@
 :2. Positive mass effect
 :3. No enhancement
-:4. Calcification is rare
+:4. [[Calcification]] is rare
 :5. Cystic component
 |-
@@ Line 47: / Line 47: @@
 :3. Marked mass effect
 :4. Surrounding vasogenic [[edema]]
-:5. Hemorrhage
+:5. [[Hemorrhage]]
-:6. Calcification is rare
+:6. [[Calcification]] is rare
 |-
 | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
@@ Line 54: / Line 54: @@
 | style="padding: 5px 5px; background: #F5F5F5;" |
 :1. Hypodense to isodense
-:2. Calcification (70-90%)
+:2. [[Calcification]] (70-90%)
-:3. Hemorrhage
+:3. [[Hemorrhage]]
 :4. Overlying skull may show pressure erosion
 |-
@@ Line 61: / Line 61: @@
 [[Ependymoma]]
 | style="padding: 5px 5px; background: #F5F5F5;" |
-:1. Coarse calcification is common (50%)
+:1. Coarse [[calcification]] is common (50%)
 :2. Cystic areas (50%)
 :3. Iso- to hypodense solid component
 :4. Heterogeneous enhancement
-:5. Hemorrhage
+:5. [[Hemorrhage]]
 |}