Rathke's cleft cyst presenting as sphenoid sinusitis.
Rathke's cleft cysts are developmental abnormalities of the craniopharyngeal duct composed of retained stratified ciliated cuboidal cells of the respiratory type. Incidentally found in the pars intermedia in 13% to 33% of routine autopsies, they are discovered in growing numbers on CT and MRI scans. From 1991 to 1999, 9 cases of Rathke's cleft cysts were encountered by the senior authors, 4 of which were treated surgically (3 by using a transsphenoidal approach and one by using a transcranial subfrontal approach). Of the 3 patients treated with a transsphenoidal approach, 2 presented with symptoms mimicking sphenoid sinusitis and were initially referred for otolaryngologic evaluation. The clinical, pathologic, and radiologic features, as well as management and follow-up of those 2 patients, are reviewed. There has been only one previous case report of Rathke's cleft cysts presenting as sinusitis. Nevertheless, the otolaryngologist should be aware of this condition because it may present with other significant symptomatic extracranial extensions.
Department of Neurosurgery, SMBD-Jewish General Hospital, McGill University, 3755 Cote Ste-Catherine, Montreal, Quebec, Canada, H3T 1E2.
R
R
Nader
S
S
Frenkiel
G
G
Mohr
L
L
Jacques
D
D
Tampieri
S
S
Albrecht
D000328:Adult; D020863:Central Nervous System Cysts / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008443:Maxillary Sinus / Q000473:pathology; D008875:Middle Aged; D013517:Otorhinolaryngologic Surgical Procedures; D013101:Sphenoid Sinus / Q000473:pathology / Q000601:surgery; D015524:Sphenoid Sinusitis / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed