Article: Unusual endocrine presentations of nasopharyngeal carcinoma

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TitleUnusual endocrine presentations of nasopharyngeal carcinoma
AuthorsTan, KCB1 2
Nicholls, J1
Kung, AWC1
Leong, L1
Lam, KSL1
Keywordsbone metastases
ectopic ACTH syndrome
Epstein- Barr virus
nasopharyngeal carcinoma
Issue Date1996
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/28741
CitationCancer, 1996, v. 77 n. 10, p. 1967-1972 [How to Cite?]
DOI: http://dx.doi.org/10.1002/(SICI)1097-0142(19960515)77:10<1967::AID-CNCR1>3.0.CO;2-E
AbstractBACKGROUND. Nasopharyngeal carcinoma is endemic in Southern China and the majority of patients present with local symptoms due to the tumor. METHODS. This report describes two unusual cases of occult nasopharyngeal carcinoma in which the patients initially presented with endocrine manifestations. RESULTS. The first patient presented with Cushing's syndrome secondary to ectopic adrenocorticotropic hormone (ACTH) production. Nasolaryngoscopy showed a growth in the left nasal fossa and biopsy revealed a poorly differentiated nasopharyngeal carcinoma that exhibited positive immunostaining for ACTH. The second patient presented with a 10-month history of bone pain over both lower limbs. She was normocalcemic but her serum alkaline phosphatase was markedly elevated. A bone biopsy showed both osteoclastic and osteoblastic activity with widespread fibrosis suggestive of Paget's disease. Three months later, she developed third cranial nerve palsy. Computed tomography investigation revealed a soft tissue mass filling the sphenoid and ethmoid sinuses. Biopsy showed a poorly differentiated nasopharyngeal carcinoma. The bone biopsy was reviewed and immunohistochemistry demonstrated the presence of cells positive for the epithelial marker AE1/3 within the fibrous stroma. Radio-labeled in situ hybridization showed that Epstein-Barr virus early RNA was present in these tumor cells and the bone lesions were in fact metastases. CONCLUSIONS. Nasopharyngeal carcinoma can present with rather atypical symptoms that may lead to a delay in diagnosis. Therefore, in high risk populations, it is important to consider nasopharyngeal carcinoma as a possible primary tumor in patients with occult carcinomas.
ISSN0008-543X
2011 Impact Factor: 4.771
2011 SCImago Journal Rankings: 0.578
DOIhttp://dx.doi.org/10.1002/(SICI)1097-0142(19960515)77:10<1967::AID-CNCR1>3.0.CO;2-E
ISI Accession Number IDWOS:A1996UJ26200001
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorTan, KCB
dc.contributor.authorNicholls, J
dc.contributor.authorKung, AWC
dc.contributor.authorLeong, L
dc.contributor.authorLam, KSL
dc.date.accessioned2010-09-06T07:38:00Z
dc.date.available2010-09-06T07:38:00Z
dc.date.issued1996
dc.description.abstractBACKGROUND. Nasopharyngeal carcinoma is endemic in Southern China and the majority of patients present with local symptoms due to the tumor. METHODS. This report describes two unusual cases of occult nasopharyngeal carcinoma in which the patients initially presented with endocrine manifestations. RESULTS. The first patient presented with Cushing's syndrome secondary to ectopic adrenocorticotropic hormone (ACTH) production. Nasolaryngoscopy showed a growth in the left nasal fossa and biopsy revealed a poorly differentiated nasopharyngeal carcinoma that exhibited positive immunostaining for ACTH. The second patient presented with a 10-month history of bone pain over both lower limbs. She was normocalcemic but her serum alkaline phosphatase was markedly elevated. A bone biopsy showed both osteoclastic and osteoblastic activity with widespread fibrosis suggestive of Paget's disease. Three months later, she developed third cranial nerve palsy. Computed tomography investigation revealed a soft tissue mass filling the sphenoid and ethmoid sinuses. Biopsy showed a poorly differentiated nasopharyngeal carcinoma. The bone biopsy was reviewed and immunohistochemistry demonstrated the presence of cells positive for the epithelial marker AE1/3 within the fibrous stroma. Radio-labeled in situ hybridization showed that Epstein-Barr virus early RNA was present in these tumor cells and the bone lesions were in fact metastases. CONCLUSIONS. Nasopharyngeal carcinoma can present with rather atypical symptoms that may lead to a delay in diagnosis. Therefore, in high risk populations, it is important to consider nasopharyngeal carcinoma as a possible primary tumor in patients with occult carcinomas.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationCancer, 1996, v. 77 n. 10, p. 1967-1972 [How to Cite?]
DOI: http://dx.doi.org/10.1002/(SICI)1097-0142(19960515)77:10<1967::AID-CNCR1>3.0.CO;2-E
dc.identifier.doihttp://dx.doi.org/10.1002/(SICI)1097-0142(19960515)77:10<1967::AID-CNCR1>3.0.CO;2-E
dc.identifier.epage1972
dc.identifier.hkuros14142
dc.identifier.isiWOS:A1996UJ26200001
dc.identifier.issn0008-543X
2011 Impact Factor: 4.771
2011 SCImago Journal Rankings: 0.578
dc.identifier.issue10
dc.identifier.openurl
dc.identifier.pmid8640657
dc.identifier.scopuseid_2-s2.0-0029880192
dc.identifier.spage1967
dc.identifier.urihttp://hdl.handle.net/10722/77994
dc.identifier.volume77
dc.languageeng
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/28741
dc.publisher.placeUnited States
dc.relation.ispartofCancer
dc.relation.referencesReferences in Scopus
dc.rightsCancer. Copyright © John Wiley & Sons, Inc.
dc.subject.meshACTH Syndrome, Ectopic - complications - diagnosis
dc.subject.meshAdrenocorticotropic Hormone - analysis
dc.subject.meshBone Neoplasms - secondary
dc.subject.meshCushing Syndrome - etiology
dc.subject.meshDiagnosis, Differential
dc.subject.meshFemale
dc.subject.meshHerpesvirus 4, Human - isolation & purification
dc.subject.meshHumans
dc.subject.meshMiddle Aged
dc.subject.meshNasopharyngeal Neoplasms - complications - diagnosis
dc.subject.meshOsteitis Deformans - diagnosis
dc.subject.meshOsteosclerosis - diagnosis
dc.subjectbone metastases
dc.subjectectopic ACTH syndrome
dc.subjectEpstein- Barr virus
dc.subjectnasopharyngeal carcinoma
dc.titleUnusual endocrine presentations of nasopharyngeal carcinoma
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Queen Mary Hospital Hong Kong