Langhans cells
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Microscopy
See also the Pathology Digital Slidebox.
Articles
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Langhans cells
1 June 2004 -
hepatoblastoma
16 March 2004hepatoblastomas
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 2004molar 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 (...) -
focal nodular hyperplasia
29 May 2003focal nodular hyperplasia of the liver, hepatic focal nodular hyperplasia, FNH (previous denomination: benign hepatoma, solitary hyperplastic nodule, focal sclerosis, hamartomatous cholangiohepatoma, mixed adenoma)
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actinic keratosis
6 July 2004solar 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 (...) -
pigmented spindle cell nevus
1 July 2004pigmented spindle cell nevus of Reed
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granulomatous colitis
18 October 2004Etiology (exemples)
Crohn disease
tuberculous enterocolitis
digestive CGD (chronic granulomatous disease)
Hermansky-Pudlak syndrome
See also
granulomatoses digestive granulomatoses -
foamy macrophages
24 October 2003spumous macrophages, foamy macrophages, foam cells; lipid-laden histiocytes, foamy histiocytes; lipid-laden macrophages; foamy histiocyte; foamy histiocytes; xanthomatous histiocytes
Definition: Histiocytes that are laden with lipid (predominantly cholesterol ), and that have differentiated from circulating monocytes.
Images
foamy macrophages in lung; amiodarone exposure
https://twitter.com/smlungpathguy/status/715529010176999424
In tumors
giant cell tumor of tendinous sheath (...) -
acute inflammation
1 June 2004Digital cases
Case 25 (HPC:25) : Acute appendicitis
Case 94 (HPC:94) : Acute appendicitis
Case 13 (HPC:13) : Acute synovitis
Definition: Acute inflammation is a rapid response to an injurious agent that serves to deliver mediators of host defense-leukocytes and plasma proteins-to the site of injury.
Types - Lesional patterns
acute inflammation
congestive inflammation
cellular acute inflammation
suppurative inflammation / suppuration
abcess / abcesses / abcedation (...) -
Cryptococcus neoformans
29 August 2005Torula histolytica
Definition: Cryptococcus neoformans (formerly known as Torula histolytica) is an encapsulated yeast-like fungus found in dried avian (particularly pigeon) and bat excreta, and in dust contaminated with such droppings.
Images
Cryptococcus disseminated to lung, spleen, kidney, thyroid.
https://twitter.com/JMGardnerMD/status/866107567046610945
granuloma with Cryptococcus neoformans
https://twitter.com/smlungpathguy/status/877392725959749632
Digital cases
HPC:62 (...)