Table 3. Summary of topographical classification of craniopharyngiomas from published literature.
| Authors | Year | Basis of classification | Classification system |
|---|---|---|---|
| Yasargil et al57 | 1990 | Relation with diaphragm | Purely intrasellar–infradiaphragmatic Intra- and suprasellar, infra- and supradiaphragmatic Supradiaphragmatic parachiasmatic, extraventricular Intra- and extraventricular Paraventricular in respect to the third ventricle Purely intraventricular |
| Hoffman1 | 1994 | Relation with ventricle | Preventricular Subventricular Retrochiasmatic Intraventricular |
| Samii and Tatagiba58 | 1997 | Tumor extension | I: intrasellar or infradiaphragm II: occupying the cistern with/without an intrasellar component III: lower half of the third ventricle IV: upper half of the third ventricle V: reaching the septum pellucidum or lateral ventricles |
| Kassam et al59 | 2008 | Relation with stalk | Preinfundibular Transinfundibular Retroinfundibular Isolated intraventricular |
| Pascual et al39 | 2004 | Relation with third ventricle | Suprasellar tumor pushing the intact third ventricle floor upward Suprasellar mass breaking through the third ventricle floor and invading the third ventricle cavity Intraventricular mass within the third ventricle cavity and floor, the latter being replaced by the tumor Intraventricular mass completely located within the third ventricle cavity and with the intact floor lying below its inferior surface |
| Qi et al60 | 2011 | Growth pattern of arachnoid envelope around the stalk | Infradiaphragmatic Extra-arachnoidal Intra-arachnoidal Subarachnoidal |
| Fatemi et al61 | 2009 | Anatomic extension of tumor | Retrochiasmal Sellar and suprasellar Cavernous sinus invasion Far lateral extension |
| Jeswani et al42 | 2016 | Endoscopic view of Infundibular | Infundibular I Infundibular II Infundibular III |
| Matsuo et al62 | 2014 | Anatomic association between CP and sellar diaphragm, hypophyseal stalk, and optic nerve | Relation with diaphragm Subdiaphragmatic (complete, incomplete) Supradiaphragmatic |
| Relation with hypophyseal stalk Preinfundibular lateroinfundibular retroinfundibular transinfundibular | |||
| Relation with optic nerve Prechiasmatic type Retrochiasmatic type Other (pure intrasellar) Tumor extension Third ventricle Interpeduncular cistern Prepontine cistern Frontal base Cavernous sinus Sphenous sinus Sellar type Presellar type Concha type |