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Necrotizing Granulomatous Hypophysitis Presenting as a Sellar Mass.
MedLine Citation:
PMID:  21301995     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We report the case of a 45-year-old Colombian female with a 3-month history of headache, anorexia, fatigue, and diplopia in addition to left facial nerve palsy 2 weeks prior to presentation. On examination, visual fields and fundi were normal, but left abducens and facial nerve palsies were noted. An MRI scan disclosed a sellar mass with suprasellar but neither parasellar nor retrosellar extension. The mass was interpreted as a pituitary tumor and resected via the transsphenoidal approach. Histologic examination revealed necrotizing granulomas in a background of normal pituitary gland tissue. The differential diagnosis includes tuberculosis, sarcoidosis, fungal infection, syphilis, granulomatous autoimmune hypophysitis, Langerhans cell histiocytosis, and Erdheim-Chester disease. Staining for tubercle bacilli (acid fast and fite) as well as for fungi (GMS) was negative and PCR for mycobacteria showed the same result. Postoperative empiric treatment with antituberculous medication resulted in resolution of the cranial nerve palsies within a 1 month. The diagnosis of inflammatory/infectious granulomatous hypophysitis can be difficult to diagnose preoperatively and occasionally even postoperatively. A high index of suspicion should be maintained especially in those patients with a history of a systemic granulomatous disease or in regions endemic in granulomatous infectious diseases.
Authors:
Sahar Al-Haddad; Rafael Fandino; Bernd W Scheithauer; Leandro Galvis; Luis V Syro; Kalman Kovacs
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-8
Journal Detail:
Title:  Endocrine pathology     Volume:  -     ISSN:  1559-0097     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9009288     Medline TA:  Endocr Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Laboratory Medicine, St Michael's Hospital, University of Toronto, 30 Bond St, Toronto, ON, M5B 1W8, Canada, al-haddads@smh.ca.
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