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 (...)

• Kaposi sarcoma
  12 December 2003

  Definition: Kaposi sarcoma is a multifocal HHV-8-driven vascular proliferation which does not show conventional features of malignancy—in particular, it may regress spontaneously.
  Images
  Kaposi sarcoma
  https://twitter.com/bunn_belinda/status/796890548493815808
  https://twitter.com/phmckee1948/status/845560382362144768
  https://twitter.com/phmckee1948/status/865860247172395009
  https://twitter.com/IPenzhorn/status/1323995643757711365
  polypoid lesion : pyogenic granuloma-like Kaposi (...)

• thyroid follicular adenoma
  14 December 2005

  Definition: A benign, encapsulated tumour of the thyroid showing evidence of follicular differentiation.
  Images
  Wikimedia : Follicular adenoma
  Digital cases (Digital slides)
  HPC:395 : Thyroid follicular adenoma with papillary epithelial hyperplasia.
  JRC:2612 : Thyroid atypical follicular adenoma, thyroid Spindle cell and follicular neoplasm.
  JRC:14584 : Thyroid follicular adenoma, clear cell type.
  JRC:15430 : Thyroid follicular adenoma (with pseudoclear).
  Follicular adenoma is (...)

• hydatiform mole
  28 April 2004

  molar gestation; hydatiform moles WKP
  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 (...)

• myopericytoma
  7 February 2006

  myopericytomas; benign myopericytoma
  Definition: Myopericytoma is a benign tumor composed of cells that show apparent differentiation towards putative perivascular myoid cells called myopericytes. Myopericytoma arises most commonly in the dermis or subcutaneous tissue of the extremities in adults.
  Images
  Myopericytoma : circumscribed multilayered growth of short spindle cells around ectatic vessels. SMA (+). https://twitter.com/RyanHickMD/status/795695282843426820
  Myopericytoma (MPC) (...)

• oral peripheral giant cell granuloma
  23 November 2006

  OPGCG

• spindle cell hemangioma
  14 June 2004

  fusiform cell hemangioendothelioma, spindle cell hemangioendothelioma
  Definition: Spindle cell haemangioendothelioma is an entirely benign, non-recurring lesion which has been renamed "spindle cell hemangioma".
  Images
  Spindle cell hemangioma
  https://twitter.com/histiocytosisX/status/715931392580927488
  https://twitter.com/rlhutton/status/864217351474081792
  Similarly, it is now appreciated that as many as 20–30% of epithelioid haemangioendotheliomas may give rise to distant metastases (...)

• leiomyosarcoma
  27 February 2004

  leiomyosarcomas
  Digital cases
  JRC:110 : Leiomyosarcoma of the skin.
  JRC:11650 : Leiomyosarcoma of soft tissue.
  JRC:6405 : Pulmonary leiomyosarcoma.
  Images
  leiomyosarcoma https://twitter.com/histiocytosisX/status/744961403526709249 https://twitter.com/SamKhader/status/1324431040488841216
  pleomorphic leiomyosarcoma - stromal eosinophilic hyalinization https://twitter.com/Konzult_/status/781310175584092160
  Mitosis collections of leiomyosarcoma / atypical mitosis / atypical (...)

• epithelioid sarcoma
  22 April 2004

  Epithelioid sarcoma of soft tissue WMC WP PO
  Definition: Epithelioid sarcoma is a rare, malignant soft-tissue neoplasm occurring on the distal extremities of young adults.
  Images
  EPITHELIOID SARCOMA. NB: sheets of epithelioid cells w/ occasional ’rhabdoid’ features; small nucleoli; and, INI-1 deficient. https://twitter.com/histiocytosisX/status/733322071946711041 https://twitter.com/histiocytosisX/status/795999024147009537

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