Suprasellar Mass in Adults: Differential Diagnosis #13
Today's Daily Diff is suprasellar masses in adults. The phrase SATCHMOE can be used to recall the diagnoses in this differential. Apparently, 'Satchmo' (without the 'e') was a nickname for jazz great Louis Armstrong. Some purists would omit the 'e' from the mnemonic, especially as eosinophilic granuloma is a form of Langerhans Cell Histiocytosis, which is already covered by the letter 'h'.
MR characteristics as well as age can be used to narrow the differential, but those features are beyond the scope of this post... which is a fancy way of saying I am too lazy to look all them up right now, but hopefully will update this at a later time. Or just check out the references below.
References:
| Disease | Notes | |
| S | Suprasellar adenoma | aka pituitary adenoma; enhances on MR |
| A | Aneurysm | Pulsation artifact on MR |
| T | Teratoma Seminoma | |
| C | Craniopharyngioma | Arise from Rathke's cleft Papillary form, age 40s Typically calcified and cystic |
| H | Histiocytosis Hypothalamic glioma | |
| M | Meningioma Metastases | Most common pituitary mets: breast, lung |
| O | Optic glioma | |
| E | Eosinophilic granuloma Epidermoid | Epidermis are DWI+ |
MR characteristics as well as age can be used to narrow the differential, but those features are beyond the scope of this post... which is a fancy way of saying I am too lazy to look all them up right now, but hopefully will update this at a later time. Or just check out the references below.
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| Pituitary macroadenoma Source: Radiopaedia |
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