Granuloma Annulare Elbow
Heather Borders, MD
over 5 years ago
Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.
Pars Intermedia Cyst
Joseph Junewick, MD FACR
|Diagnostic Category: Genetic or Congenital
|Created: over 8 years ago
|Updated: over 7 years ago
2 year old with seizure.
Pars intermedia cyst (Rathke’s cleft cyst)
MR – Nonenhancing T1 hypointense and T2 hyperintense focus interposed between the anterior and posterior pituitary.
Pars intermedia cysts, also referred to as Rathke’s cleft cysts, are thought to be congenital remnants of Rathke’s pouch. Pars intermedia cysts are common, found in 13-22 % of autopsies but are rarely symptomatic because most are less than 3 mm in diameter. Cysts are lined by goblet epithelial cells and can enlarge and produce headaches, pituitary dysfunction, visual disturbance and hypothalamic symptoms. MR signal varies depending upon the cyst contents; nodules can occur in the cyst wall.
Byun WM, et al. MR Imaging Findings of Rathke’s Cysts: Significance if Intracystic Nodules. AJNR 2000; 21:485-488.