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==Overview==
==Overview==
Neuroblastoma patients may initially present with vague symptoms making the diagnosis of such patients difficult. If left untreated, patients with neuroblastoma may progress to develop fatigue, loss of appetite, joint pain, and fever. Complications of neuroblastoma may include treatment-resistant diarrhea, Horner's syndrome, and transverse myelopathy. Depending on the extent of the tumor at the time of diagnosis, the prognosis may vary. However, the prognosis of neuroblastoma is generally regarded as poor.<ref name="radio">Neuroblastoma. Radiopaedia(2015) http://radiopaedia.org/articles/neuroblastoma Accessed on October, 5 2015</ref><ref name="wiki">Neuroblastoma. Wikipedia(2015) https://en.wikipedia.org/wiki/Neuroblastoma Accessed on October, 5 2015</ref><ref name="gov"> Neuroblastoma Treatment for health professionals. National Cancer Institute (2015) http://www.cancer.gov/types/neuroblastoma/hp/neuroblastoma-treatment-pdq#link/_534_toc Accessed on October, 7 2015</ref><ref name="patho"> Neuroblastoma. Libre Pathology(2015) http://librepathology.org/wiki/index.php/Adrenal_gland#Neuroblastoma Accessed on October, 5 2015</ref>
Neuroblastoma patients may initially present with vague symptoms making the diagnosis of such patients difficult. If left untreated, patients with neuroblastoma may progress to develop fatigue, loss of appetite, joint pain, and fever. Complications of neuroblastoma may include treatment-resistant diarrhea, Horner's syndrome, and transverse myelopathy. Depending on the extent of the tumor at the time of diagnosis, the prognosis may vary. However, the prognosis of neuroblastoma is generally regarded as poor.<ref name="radio">Neuroblastoma. Radiopaedia(2015) http://radiopaedia.org/articles/neuroblastoma Accessed on October, 5 2015</ref><ref name="wiki">Neuroblastoma. Wikipedia(2015) https://en.wikipedia.org/wiki/Neuroblastoma Accessed on October, 5 2015</ref><ref name="gov"> Neuroblastoma Treatment for health professionals. National Cancer Institute (2015) http://www.cancer.gov/types/neuroblastoma/hp/neuroblastoma-treatment-pdq#link/_534_toc Accessed on October, 7 2015</ref><ref name="patho"> Neuroblastoma. Libre Pathology(2015) http://librepathology.org/wiki/index.php/Adrenal_gland#Neuroblastoma Accessed on October, 5 2015</ref>

Revision as of 16:04, 11 October 2015

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]

Overview

Neuroblastoma patients may initially present with vague symptoms making the diagnosis of such patients difficult. If left untreated, patients with neuroblastoma may progress to develop fatigue, loss of appetite, joint pain, and fever. Complications of neuroblastoma may include treatment-resistant diarrhea, Horner's syndrome, and transverse myelopathy. Depending on the extent of the tumor at the time of diagnosis, the prognosis may vary. However, the prognosis of neuroblastoma is generally regarded as poor.[1][2][3][4]

Natural History

  • Neuroblastoma patients may initially present with vague symptoms making the diagnosis of such patients difficult.
  • If left untreated, patients with neuroblastoma may progress to develop fatigue, loss of appetite, joint pain, and fever.
  • Gradual development of site specific symptoms may occur as the tumor size rapidly increases.[2]

Complications

  • Complications of neuroblastoma may include:[2]
  • Treatment-resistant diarrhea (due to vasoactive intestinal peptide secretion)
  • Horner's syndrome (due to cervical sympathetic chain compression)
  • Opsoclonus myoclonus syndrome and ataxia (due to a paraneoplastic syndrome)
  • Hypertension (due to either catecholamine secretion or renal artery compression)
  • Transverse myelopathy (due to tumor spinal cord compression)
  • Anemia and decreased immunity (due to bone marrow metastasis)

Prognosis

  • Depending on the extent of the tumor at the time of diagnosis, the prognosis may vary. However, the prognosis of neuroblastoma is generally regarded as poor.
  • The table below lists the prognostic factors for neuroblastoma patients:[1][2][3][4]
Prognostic Factor Description
Patients Age
Patients older than 18 months of age are associated with poor prognosis.
Tumor Stage
Advanced INSS stages of neuroblastoma are associated with poor prognosis.
Tumor Grade
An unfavorable Shimada histology index is associated with poor prognosis.
Schwannnian Stroma
A reduced schwannian stroma background content on histological analysis is associated with poor prognosis.
Mitotic-karyorrhectic Index
A high mitotic-karyorrhectic index is associated with poor prognosis.
Genetics Mutations
Chromosome 1p deletion, chromosome 11q deletion, and N-MYC oncogene amplification are associated with poor prognosis.
Response to Treatment
Patients whose neuroblastoma responds to treatment and goes into complete remission have a better prognosis than people whose cancer does not respond to the initial treatment.


References

  1. ↑ 1.0 1.1 Neuroblastoma. Radiopaedia(2015) http://radiopaedia.org/articles/neuroblastoma Accessed on October, 5 2015
  2. ↑ 2.0 2.1 2.2 2.3 Neuroblastoma. Wikipedia(2015) https://en.wikipedia.org/wiki/Neuroblastoma Accessed on October, 5 2015
  3. ↑ 3.0 3.1 Neuroblastoma Treatment for health professionals. National Cancer Institute (2015) http://www.cancer.gov/types/neuroblastoma/hp/neuroblastoma-treatment-pdq#link/_534_toc Accessed on October, 7 2015
  4. ↑ 4.0 4.1 Neuroblastoma. Libre Pathology(2015) http://librepathology.org/wiki/index.php/Adrenal_gland#Neuroblastoma Accessed on October, 5 2015

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