Late development of craniopharyngioma following surgery for Rathke's cleft cyst.
Clin Neuropathol
; 28(3): 177-81, 2009.
Article
em En
| MEDLINE
| ID: mdl-19537134
ABSTRACT
OBJECTIVE:
Rathke's cleft cyst (RCC) may transform to papillary type craniopharyngioma (CP) after squamous metaplasia this is referred to as ciliated CP. We encountered a case involving a patient who had late development of adamantinomatous CP following surgery for RCC, the details of which may shed light on the histogenesis of CP in general. PATIENT A 41-year-old man presented to our institution with visual disturbance, and magnetic resonance imaging (MRI) showed a cystic mass in the suprasellar region. The patient underwent a biopsy via a transsphenoidal approach and was diagnosed as having a RCC. 34 months after the initial surgery, the patient revisited our hospital for a rapidly aggravating visual disturbance and underwent neuroendoscopic biopsy and tumor removal via a bifrontal craniotomy. Histologically, the tumor was shown to be an adamantinomatous CP. No nuclear beta-catenin accumulation was detectable in the previous RCC specimen, but nuclear beta-catenin accumulation was found in the recent CP specimen, restricted to whorl-like structures or surrounding ghost cells.CONCLUSIONS:
Our case of adamantinomatous CP that developed long after removal of the RCC, diagnosed by beta-catenin staining, supports the hypothesis that CPs may develop from RCCs directly due to beta-catenin mutations. However, it still does not prove that a histogenetic connection can be shown between the two lesions which are clonally unrelated. Our case is reported as two consecutive lesions; this in itself is a rare situation.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias Hipofisárias
/
Segunda Neoplasia Primária
/
Craniofaringioma
/
Cistos do Sistema Nervoso Central
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article