Tumor

Articles

• hepatoblastoma
  16 March 2004

  hepatoblastomas
  Definition: Hepatoblastoma is a malignant embryonal liver tumor that occurs almost exclusively in infants and very young children.
  Image
  Macroscopy : https://twitter.com/DraEosina/status/762631086207893506
  Cytology: https://twitter.com/AdamGomezMD/status/720632495671087104
  https://twitter.com/MArnold_PedPath/status/736000944303808512
  Hepatoblastoma is composed of epithelial and mesenchymal elements in varying proportions and at various stages of differentiation. The (...)

• progressive transformation of germinal centers
  15 December 2003

  PTGC, progressive transformation of germinal center

• osteoblastoma
  11 February 2004

  Digital cases
  HPC:79 : Osteoblastoma
  HPC:147 : Osteoblastoma
  Definition: An osteoblastoma is a rare solitary, benign, osteoid- and bone-forming neoplasm that contains many well-differentiated osteoblasts and osteoclasts, and usually has a vascular stroma.
  Clinical synopsis
  Osteoblastomas predominantly affect young adults and are often painful.
  Swelling and tenderness are usually the symptoms that prompt the patient to seek medical attention.
  "Toxic" cases - A few patients with (...)

• hydatiform mole
  28 April 2004

  molar gestation; hydatiform moles
  Images
  partial hydatiform mole by Ed Euthman
  complete hydatiform mole
  https://twitter.com/luishcruzc/status/738155933801418752
  https://twitter.com/KUSAURAP/status/778827207976230916
  Definition: Hydatiform mole is a gestational trophoblastic disorder.
  Accurate diagnosis and classification of hydatidiform mole (HM) are important because the risk of persistent gestational trophoblastic disease, including choriocarcinoma, is significantly higher (...)

• Wilms tumor
  14 November 2003

  nephroblastoma

• basal cell carcinoma
  21 April 2004

  basal cell carcinoma; cutaneous basal cell carcinoma
  Images
  Superficial crust on the sole of foot : BCC
  https://twitter.com/JAADjournals/status/876864956611907588
  Digital cases
  UI:1828 : cutaneous basal cell carcinoma.
  UI:1276 : cutaneous basal cell carcinoma.
  JRC:10423 : Adenoid basal cell carcinoma.
  JRC:10424 : Basal cell carcinoma (Pseudo-Brooke).
  JRC:10425 : Adenoid basal cell carcinoma.
  JRC:10427 : Basal cell carcinoma ("Fibroepithelioma").
  JRC:10431 : Multicentric (...)

• mammary fibroadenoma
  18 January 2005

  breast fibroadenoma, Benign cystosarcoma phyllodes, Cellular fibroadenoma, Cellular adenofibroma, Fetal fibroadenoma, Juvenile adenofibroma; mammary fibroadenoma PO Webpathology BP
  Definition : The mammary fibroadenoma is a benign mammary biphasic tumor with epithelial and stromal components.
  It is a benign breast lesion that result from hyperplasia of the normal lobules.
  It is a circumscribed, often large, breast mass usually occuring in adolescent females with stromal and (...)

• pancreatic solid pseudopapillary tumor
  12 November 2003

  PSPPT; solid-pseudopapillary tumor of the pancreas, Frantz tumor, Frantz’s tumor; solid pseudopapillary tumor of the pancreas; ICD-O codes Solid pseudopapillary neoplasm 8452/1, Solid pseudopapillary carcinoma 8452/3; pancreatic solid pseudopapillary tumor; pancreatic solid and pseudopapillary tumor; Solid-pseudopapillary neoplasm of the pancreas PathConsult
  Definition: Solid pseudopapillary neoplasms of the pancreas are rare pancreatic tumors with mostly benign behavior, affecting (...)

• colorectal adenoma
  12 May 2004

  colorectal adenomas
  Definition: Adenomas, the benign glandular neoplasms that precede colon cancer development, originate from the intestinal epithelium. They occur singly or multiply. When multiple, the patients may have a genetic predisposition syndrome for colorectal cancer.
  See also : colorectal adenoma with adenocarcinoma
  Endoscopy
  Small (< 5 mm) colorectal polyps commonly affect individuals older than 50 years of age and adenomas account for 60% to 66% ofthese small lesions. (...)

• lentigo simplex
  8 July 2004

  The simple lentigo is a brown to black, sharply circumscribed and usually uniformly pigmented macule, measuring a few millimeters in diameter. It may be found anywhere on the body surface.
  The term ‘labial melanotic macule’ is now used for a clinically similar lesion on the lip that was previously referred to as a lentigo.
  Microscopy
  There is variable basal hyperpigmentation with an increased number of single melanocytes in the basal layer.
  There is usually acanthosis, with regular (...)

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