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 (...)
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 (...)
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 (...)
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 (...)
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 (...)
teratoma
10 March 2004

teratomas
Definition: Teratomas are neoplasms comprised of mixed elements derived from the three germ cell layers.
Images
Gastric teratoma in a 1yo male
https://twitter.com/DraEosina/status/817663085376901121
A teratoma is generally defined as a tumor arising from pluripotent cells, and it is precisely the heterogeneity of tissues present in such a tumor that best characterizes it; it is also commonly accepted that a teratoma must contain derivatives of more than one blastodermic (...)
mature teratoma
8 November 2004

Videos
mature ovarian teratoma
See also
teratomas mature teratoma (dermoid cyst ) immature teratoma malignant teratoma
germ cell tumors (GCTs )
References
Is a mature teratoma a premalignant condition? Hawkins EP. Hum Pathol. 1999 May;30(5):596. PMID: #10333236#
chondroblastoma
28 October 2009

Images
Chondroblastoma https://twitter.com/KUSAURAP/status/688729523848777728 https://twitter.com/Konzult_/status/726795851327221760 https://twitter.com/smlungpathguy/status/748733692659380224 https://twitter.com/ArchivesPath/status/872883836484497409 https://twitter.com/sarabethrides/status/864908265360109568 https://twitter.com/histiocytosisX/status/880850700489674752
chicken wire appearance calcifications in chondroblastoma (...)
proliferative myositis
29 March 2005

PO
Definition: Infiltrative poorly demarcated intramuscular mass resembling nodular fasciitis but with large basophilic cells resembling ganglion cells.
Histologically almost identical to proliferative fasciitis except located in muscle. It may be related to a reactive process. An occasional history of trauma can be noted.
The proliferative myositis belongs to the "pseudosarcomatous fasciitis and myositis" group, joining nodular fasciitis (NF), proliferative fasciitis (PF), and (...)
gliosarcoma
8 February 2005

References
Behling E, Birbe R, Veznadaroglu E, Andrews DW, Flanders A, Kenyon LC. Gliosarcoma arising from an anaplastic ependymoma: a case report of a rare entity. Hum Pathol. 2004 Apr;35(4):512-6. PMID: #15116335#

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