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 (...)
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. (...)
progressive transformation of germinal centers
15 December 2003
PTGC, progressive transformation of germinal center
myxoid/round cell liposarcoma
7 October 2005

myxoid liposarcoma and round cell liposarcoma group; MRC-LPS
Definition: Myxoid and round cell liposarcoma accounts for about 30% to 35% of all liposarcomas and, even if still classified by the World Health Organization (WHO) as 2 distinct subtypes, share both clinical and morphologic features.
See also :
myxoid liposarcoma
round cell liposarcoma
Lesions combining both patterns are frequent and wide agreement exists in considering round cell liposarcoma as the high grade counterpart (...)
hepatocellular adenoma
31 May 2003
liver adenoma, liver cell adenoma, hepatic adenoma
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 (...)
osteochondroma
18 March 2004

solitary osteochondroma
Digital case (Digital slides)
HPC:396 : Osteochondroma
Images
Osteochondroma https://twitter.com/KUSAURAP/status/745057733565526016 https://twitter.com/MArnold_PedPath/status/734893844592893952 https://twitter.com/E_Heidi_Cheek/status/873941616712704000
Cytogenetics
loss of distal 8q (#11793371#)
Predisposition
multiple osteochondromas (or hereditary multiple exostoses (HME) or osteochnondromatosis) type 1 (MIM.133700): EXT1 germline mutations type 2 (...)
osteofibrous dysplasia
16 April 2004

Ossifying fibroma, osteofibrodysplasia, cortical osteofibrous dysplasia (COFD); differentiated adamantinoma; OFD
Digital slides
HPC:58 : osteofibrous dysplasia
Definition: Osteofibrous dysplasia, also known as "ossifying fibroma", is a benign fibrous tumor with local aggressive behavior. It is self-limiting, deformity-producing proliferation of bone and fibrous tissue invoiving the tibia or fibule of infants and children.
Although Osteofibrous dysplasia has been considered in the past (...)
juvenile angiofibroma
8 September 2004
juvenile nasopharyngeal angiofibroma

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