Oral cancer-associated paraneoplastic syndromes
L Feller1, N H Wood, R A G Khammissa
1Department of Periodontology and Oral Medicine, School of Oral Health Sciences, Faculty of Health Sciences, University of Limpopo, Medunsa Campus, South Africa. lfeller@ul.ac.za
Summary
Paraneoplastic syndromes are rare disorders linked to cancer, caused by tumor cell mediators or immune responses. Oral cancers can uncommonly manifest with specific paraneoplastic syndromes like pemphigus or hormonal imbalances.
Area of Science:
- Oncology
- Endocrinology
- Immunology
Background:
- Paraneoplastic syndromes are disorders associated with cancer.
- They are not caused by direct tumor effects, metastasis, treatment side-effects, or cancer complications.
- These syndromes arise from ectopic mediator production by tumor cells or immune responses to malignancy.
Purpose of the Study:
- To define paraneoplastic syndromes.
- To elucidate their underlying mechanisms.
- To highlight associations between specific cancers and paraneoplastic disorders.
Main Methods:
- Literature review and synthesis of existing research on paraneoplastic syndromes.
- Classification of causes: ectopic mediator production and immunological responses.
- Documentation of specific cancer-syndrome associations.
Main Results:
- Paraneoplastic syndromes involve endocrinological, haematological, dermatological, or neurological disorders.
- Ectopic production of biological mediators or immunological responses are the primary causes.
- Oral carcinomata are uncommonly associated with paraneoplastic pemphigus, humoral hypercalcaemia of malignancy, syndrome of inappropriate antidiuretic hormone, and paraneoplastic leukocytosis.
Conclusions:
- Paraneoplastic syndromes represent a distinct category of cancer-associated disorders.
- Understanding these syndromes is crucial for comprehensive cancer patient management.
- Specific oral cancer associations, though uncommon, warrant clinical awareness.
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