Pathology dictionary

Our pathology dictionary has definitions for more than 200 pathology words and phrases. Select the first letter of the word or phrase you are looking for from the alphabet below or scroll down to see the complete list of articles. Can’t find what you’re looking for? Send us a suggestion for a new article or ask a pathologist your question.

A B C D E F G H I J K L M N O P R S T U V W X Y Z

A

Acanthosis
Acute inflammation
Adenoma
Adenocarcinoma
Adenosquamous carcinoma
Adipose tissue
Anaplastic
Apoptosis
Arteriovenous malformation
Atrophic
Atrophy
Atypia
Atypical
AVM

B

Basal lymphoplasmacytosis
Benign
Biopsy
Breslow thickness

C

Calcification
Carcinoma
Carcinoma in situ
Carcinoid
Cautery artefact
CD34
Cholesterol cleft
Cribriform
Chronic inflammation
Chromatin
Crohn’s disease
Crypt abscess
Crypt distortion
Cryptitis
CK7
CK20
Cytokeratin
Cytokeratin 7
Cytokeratin 20
Cyst

D

Desmin
Desmoplasia
Duct
Differentiated
Dysplasia

E

Epithelial
Epithelium
Estrogen receptor
ER
Excision
Exophytic

F

Fibroadenoma
Fibrosis
FISH
Flow
Fluorescence in situ hybridization
Foamy histiocyte
Fuhrman grade​

G

Gland
Grade
Granulation tissue
Granuloma
Gross

H

Hamartoma
H&E
Hematoxylin and eosin
Heterogeneous
Her2
Homogeneous
HPV
Human papillomavirus
Hyperplasia
Hyperchromatic
Hyperchromasia
Hypergranulosis
Hyperkeratosis

I

IHC
Immunohistochemistry
Immunoglobulin
Infiltrative
Infiltration
Inflammation
Inflammatory cell
Intercellular bridges
Intestinal metaplasia
In toto
Invasion

J

K

Keratinization
Ki-67
KRAS

L

Lesion
Leukocyte
LVI
Lymphocyte
Lymphocytosis
Lymphovascular invasion
Lymphoma
Lymph node

M

Margin
Mass
Malignant
Melanocyte
Melanoma
Metaplasia
Metastasis
Mesothelial cells
Mismatch repair (MMR)
Mitosis
Mucosa
Mucin
Myxoid

N

Neoplasia
Necrosis
Neuroendocrine cell
Neuroendocrine tumour
Non-Hodgkin lymphoma
Non-reactive
Non-small cell carcinoma
Nucleus
Nucleoli

O

Osteoid

P

p16
p40
p53
p63
Paneth cell metaplasia
Papillary
Perineural invasion
Plasma cell
Pleomorphic
PNI
Polyp
Precursor
Progesterone receptor
PR
Prognosis
Poorly differentiated
pTNM

Q

R

Reactive
Resection

S

Sarcoma
Sarcomatoid
Signet ring cell
SOX10
Stoma
Stroma
Squamous cell
Squamous cell carcinoma
Special stain
Specimen
Spindle cell
Spongiosis
Spongiotic

T

Tangentially sectioned
Tumour
Tumour infiltrating lymphocytes (TILs)

U

Ulcer
Ulcerative colitis
Undifferentiated
Urothelial cell​

V

Viral cytopathic effects
Virus

W

Well differentiated

X

Y

Z

A+ A A-