Index
O
Entries beginning with O.
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Oesophagus
Oesophageal adenocarcinoma
Oesophageal adenocarcinoma arises in the lower oesophagus, usually after Barrett’s. This entry covers GORD, staging, and perioperative treatment.
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Oesophagus
Oesophageal squamous cell carcinoma
Oesophageal squamous cell carcinoma arises from the squamous lining, often mid/upper oesophagus. This entry covers smoking, alcohol, and chemoradiation.
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Central nervous system
Oligodendroglioma
Oligodendroglioma is an IDH-mutant diffuse glioma defined by 1p/19q codeletion. This entry covers seizures, calcified frontal tumours, and PCV or temozolomide.
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Primary bone tumours
Osteosarcoma
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Childhood
Ovarian germ cell tumours
Malignant ovarian germ cell tumours are rare cancers of young women. This entry covers dysgerminoma, yolk sac tumour, immature teratoma, and fertility-sparing treatment.