Paraneoplastic Syndromes | Ehealthinfo.net
Paraneoplastic Syndromes
In addition to local tissue invasion and metastasis, neoplastic cells can produce a variety of peptides that that can stimulate hormonal, hematologic, dermatologic, or neurologic responses. Paraneoplastic syndromes refer to the disorders that accompany benign or malignant tumors but are not directly related to mass effects or invasion. Tumors of neuroendocrine origin, such as small cell lung carcinoma (SCLC) and carcinoids, produce a wide array of peptide hormones and are common causes of paraneoplastic syndromes. However, almost every type of malignancy has the potential to produce hormones or cytokines, or to induce immunologic responses. Careful studies of the prevalence of paraneoplastic syndromes indicate that they are more common than is generally appreciated. The signs, symptoms, and metabolic alterations associated with paraneoplastic disorders may be overlooked in the context of a malignancy and its treatment. Consequently, atypical clinical manifestations in a patient with cancer should prompt consideration of a paraneoplastic syndrome. The most common endocrinologic and hematologic syndromes associated with underlying neoplasia will be discussed here.
Epidemiology
These syndromes may be the first sign of a malignancy and may affect up to 15% of patients with cancer. However, if patients with cachexia are excluded, the incidence probably drops to only a few percent. Paraneoplastic syndromes are important clinically for a number of reasons. First, they may be the initial presenting sign or symptom of an underlying malignancy. Up to two thirds of paraneoplastic syndromes arise before an associated malignancy is diagnosed. In some cases, the paraneoplastic syndrome may be associated with relatively small tumors; recognition of these associations may lead to earlier diagnosis and better therapy. Second, one of the hallmarks in defining a paraneoplastic syndrome is that the course of the syndrome generally parallels the course of the tumor. Therefore, effective treatment of the underlying malignancy is often accompanied by improvement or resolution of the syndrome. Conversely, recurrence of the cancer may be heralded by return of systemic symptoms. One exception is the neurologic paraneoplastic syndromes, in which damage to structures within the nervous system may not be reversible. Third, the clinical manifestations of the paraneoplastic syndrome (or the toxic effects of electrolyte disturbances) may constitute a more urgent hazard to life or have a greater impact on quality of life than the underlying cancer.
Paraneoplastic Syndromes Of The Nervous System - Bookshelf
Handbook of clinical neurology, Neuro-oncology
Paraneoplastic syndromes of the nervous system: diagnostic approaches JOSEPDALMAU Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, ...Neuronal activity in tumor tissue
Paraneoplastic Syndromes of the Nervous System Neuronal tumor antigens may stimulate an immune response which may seldom lead to an autoimmune syndrome of ...Cancer Nursing, Principles and Practice
INTRODUCTION Paraneoplastic syndromes (PNSs) have been reported as far back ... of the central or peripheral nervous system from the cerebral cortex to the ...Comprehensive hospital medicine, an evidence based approach
Though this chapter concentrates on paraneoplastic syndrome affecting the nervous system, paraneoplastic syndromes can also affect most other organs and ...Current diagnosis and treatment in neurology
Current evidence indicates that the pathogenesis of most paraneoplastic syndromes of the central nervous system is likely explained by a combination of ...Daily Source Directory
Paraneoplastic syndromes of the nervous system - MayoClinic.com
Paraneoplastic syndromes — Overview covers symptoms, diagnosis, treatment of rare neurological disorders associated with cancer.
Paraneoplastic syndromes of the nervous system
Paraneoplastic syndromes can affect many areas, including your skin, kidneys, blood and joints. But, one of the most common areas affected is the nervous system. ...
MayoClinic.com Health Library - Paraneoplastic syndromes of ...
Paraneoplastic syndromes of the nervous system are a group of rare ... Paraneoplastic syndromes of the nervous system are rare, occurring in less than 1 percent ...
OhioHealth - Paraneoplastic syndromes of the nervous system
Paraneoplastic syndromes of the nervous system are a group of rare ... Paraneoplastic syndromes of the nervous system occur when cancer-fighting agents of the ...
Blue Cross & Blue Shield of Rhode Island - Paraneoplastic ...
Paraneoplastic syndromes of the nervous system are a group of rare ... Paraneoplastic syndromes of the nervous system are rare, occurring in less than 1 percent ...