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 (...)

• actinic keratosis
  6 July 2004

  solar keratosis, senile keratosis, pre-epitheliomatous keratosis WKP
  Digital cases
  UI:906 - Actinic keratosis.
  UI:917 - Actinic keratosis.
  UI:1826- Actinic keratosis.
  JRC:10567 : Actinic keratosis.
  JRC:10569 : Actinic keratosis.
  Definition: Actinic keratosis is a premalignant condition of thick, scaly, or crusty patches of skin
  It is more common in fair-skinned people and it is associated with those who are frequently exposed to the sun, as it is usually accompanied by (...)

• nodular fasciitis
  13 July 2004

  subcutaneous pseudosarcomatous fibromatosis, proliferative fasciitis. Ent. 1955 WKP PO
  Definition: Nodular fasciitis is a benign proliferation of fibroblasts in the subcutaneous tissues, commonly associated with the deep fascia. Nodular fasciitis is a benign mesenchymal tumor.
  Nodular fasciitis (NF) is a relatively common mass-forming and self-limited subcutaneous pseudosarcomatous myofibroblastic proliferation of unknown pathogenesis. Due to its rapid growth and high mitotic (...)

• gastric adenocarcinoma
  22 April 2004

  gastric cancer, gastric carcinomas PO
  Images
  M 14y/o gastric adenocarcinoma with bone metastasis https://twitter.com/Sandro_CZ/status/778725943980417024
  Digital cases
  JRC:10442 : cutaneous metastasis of a gastric adenocarcinoma.
  Etiology
  Gastric cancer is thought to result from a combination of environmental factors and the accumulation of specific genetic alterations due to increasing genetic instability, and consequently affects mainly older patients.
  Microscopical subtypes (...)

• ovarian thecoma
  14 July 2004

  ovarian thecoma, theca cell tumors

• trichoblastoma
  3 June 2010

  WP WM
  Definition: Trichoblastomas are a cutaneous condition characterized by benign neoplasms of follicular germinative cells. Trichoblastomas are epithelial tumors consisting mostly of follicular germinative cells. There are rare cases of malignant degeneration.
  Images
  https://twitter.com/Levelsx5/status/734924666830266368
  https://twitter.com/jotacegepat/status/596099602769645569
  https://twitter.com/pathsoc/status/549912249536884736 (...)

• infantile hemangioma
  11 March 2004

  juvenile hemangioma, cellular hemangioma of infancy, common hemangioma of infancy; GLUT1+ infantile hemangioma
  Digital Cases (Digital slides)
  HPC/106 : GLUT1+ infantile hemangioma
  HPC:186 : GLUT1+ infantile hemangioma
  HPC:385 : GLUT1+ infantile hemangioma
  Clinical synopsis
  The typical infantile hemangioma appears postnataly, grows quickly, and regresses gradually in the first few years of life. Approximately one third of IH are present at birth.
  Infantile hemangiomas progress (...)

• embryonal rhabdomyosarcoma
  25 November 2003

  Images
  Vaginal mass. In embryonal rhabdomyosarcoma, botryoid type. Cambium layer, rhabdomyoblasts vary from round to strap-shaped cells. https://twitter.com/A_Elshaikh/status/893992220356997120
  Digital cases
  HPC:181 : Embryonal rhabdomyosarcoma of the maxillary region
  HPC:210 : Embryonal rhabdomyosarcoma
  HPC:211 : Botryoid embryonal rhabdomyosarcoma
  HPC:250 : Botryoid embryonal rhabdomyosarcoma of the nasopharynx.
  JRC:19400 : Pulmonary embryonal rhabdomyosarcoma. (...)

• mammary invasive lobular carcinoma
  9 February 2011

  breast invasive lobular carcinoma; invasive lobular carcinoma of the breast; mammary infiltrating lobular carcinoma; lobular carcinoma of the breast: mammary invasive lobular carcinoma; infiltrating lobular carcinoma of the breast PO WPA
  Definition: Invasive lobular carcinoma shows single file infiltrative neoplastic cells, which are negative for E-cadherin and shows cytoplasmic p120 cadherin as opposed to surface p120.
  The lesion usually presents as a palpable mass, and mammography (...)

• fibrofolliculoma
  29 March 2005

  Definition: Fibrofolliculoma is a very rare benign tumor of the skin that is derived from the perifollicular sheath. The patients with multiple fibrofolliculomas have an association with Birt-Hogg-Dube syndrome.
  Images
  https://twitter.com/GregHoslerMDPhD/status/718863580368609281
  Pathology
  It is a neoplastic proliferation of the fibrous sheath of the hair follicle, with solid extensions of the epithelium of the follicular infundibulum.
  As a benign tumor derived from the dermal part (...)

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