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Pancreatoblastoma

From Wikipedia, the free encyclopedia
Medical condition
Pancreatoblastoma
SpecialtyOncology
Relative incidences of various pancreatic neoplasms, with pancreatoblastoma annotated at center right.[1]

Pancreatoblastoma is a rare type ofpancreatic cancer.[2] It occurs mainly in childhood[3] and has a relatively good prognosis.

Symptoms

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Children with pancreatoblastoma rarely present with early-stage disease, instead, most present with locally advanced ormetastatic disease. Common presenting symptoms includeabdominal pain,emesis, andjaundice. Amultidisciplinary approach including goodclinical history,state of the art imaging, and careful pathology is often needed to establish the correct diagnosis.[4]

Pathology

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Resected pancreatoblastomas can be quite large, ranging from 2 centimeters to 20 centimeters in size (1 to 8 inches). They are typically solid, soft masses. Under the microscope, at least two cell types are seen: cells with “acinar” differentiation, and cells forming small “squamoid” nests. The cells with acinar differentiation have some features of the normal acinar cell of the pancreas (the most common cell in the normal pancreas).[5]

Diagnosis

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Histopathology shows two pancreatic lines of differentiation which can be acinar, ductal or neuroendocrine.

Characteristic feature is presence of squamoid nests. Tumor is overall hypercellular, with lobules separated by fibrotic bands.

Treatment

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If the tumor is operable, the first line of therapy should be surgical resection. Then, after surgical resection, adjuvant chemotherapy should be given, even in stage I disease. In patients with inoperable disease, chemotherapy alone should be given.[6] A multi-disciplinary approach to the treatment, including surgeons, oncologists, pathologists, radiologists, and radiation oncologists, is often the best approach to managing these patients.[4]

See also

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References

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  1. ^Wang Y, Miller FH, Chen ZE, Merrick L, Mortele KJ, Hoff FL; et al. (2011). "Diffusion-weighted MR imaging of solid and cystic lesions of the pancreas".Radiographics.31 (3): E47-64.doi:10.1148/rg.313105174.PMID 21721197.{{cite journal}}: CS1 maint: multiple names: authors list (link)
    Diagram by Mikael Häggström, M.D.
  2. ^"Pancreatoblastoma". Archived fromthe original on 2004-06-02.
  3. ^Naik VR, Jaafar H, Leow VM, Bhavaraju VM (March 2006)."Pancreatoblastoma: a rare tumour accidentally found"(PDF).Singapore Med J.47 (3):232–4.PMID 16518559.
  4. ^ab"Pancreatic Cancer Multi-Disciplinary Clinic at Johns Hopkins University". Archived fromthe original on 2020-05-03. Retrieved2010-03-11.
  5. ^"Pancreatic Cancer Frequently Asked Questions". Archived fromthe original on 2020-02-09. Retrieved2010-03-11.
  6. ^http://www.orpha.net/data/patho/GB/uk-pancrea.pdfArchived 2016-03-08 at theWayback Machine -

External links

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Classification
GI tract
Upper
Esophagus
Stomach
Lower
Small intestine
Appendix
Colon/rectum
Anus
Upper and/or lower
Accessory
Liver
Biliary tract
Pancreas
Peritoneum
Not otherwise specified
Connective tissue neoplasm
Fibromatous
Fibroma/fibrosarcoma
Fibroma/fibromatosis
Histiocytoma/histiocytic sarcoma
Myxomatous
Fibroepithelial
Synovial-like
Lipomatous
Myomatous
General
Smooth muscle
Skeletal muscle
Complex mixed and stromal
Mesothelial
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