Diagnosis library (alphabetical)

MyPathologyReport
December 19, 2023


The diagnosis library is a collection of patient-friendly articles written by pathologists to help you understand your diagnosis and pathology report. Contact us if you need help finding an article.

Browse by alphabetical order | body site

A

Acinic cell carcinoma
Actinic keratosis
Acute appendicitis
Acute lung injury
Acute mucositis
Adenocarcinoma in situ (AIS) of the cervix
Adenocarcinoma in situ (AIS) of the lung
Adenocarcinoma of the colon and rectum
Adenocarcinoma of the esophagus
Adenocarcinoma of the lung
Adenocarcinoma of the prostate​
Adenocarcinoma of the stomach
Adenoid cystic carcinoma
Adrenocortical adenoma
Adrenocortical carcinoma
Aggressive B cell lymphoma
ALK-negative anaplastic large cell lymphoma
ALK-positive anaplastic large cell lymphoma
Alveolar rhabdomyosarcoma
Ameloblastoma
Anal intraepithelial neoplasia (AIN)
Anaplastic thyroid carcinoma
Anemia of chronic disease
Angioleiomyoma
Angiolipoma
Angiomyolipoma (AML)
Angiosarcoma
ASC-H on a Pap smear of the cervix
ASC-US on a Pap smear of the cervix
Astrocytoma, IDH-mutant, CNS WHO grade 2
Astrocytoma, IDH-mutant, CNS WHO grade 3
Astrocytoma, IDH-mutant, CNS WHO grade 4
Atrophic endometrium
Atrophy of the ovary
Atypical carcinoid tumour of the lung
Atypical ductal hyperplasia (ADH) of the breast
Atypical endometrial hyperplasia
Atypical glandular cells, favor neoplastic
Atypical glandular cells, not otherwise specified
Atypical lipomatous tumour (ALT)
Atypical lobular hyperplasia of the breast
Autoimmune hepatitis

B

B-lymphoblastic leukemia (B-ALL)
B-lymphoblastic lymphoma (B-LBL)
Barrett’s esophagus
Basal cell adenoma
Basal cell adenocarcinoma of the salivary glands
Basal cell carcinoma of the skin
Basosquamous carcinoma of the skin
Benign Brenner tumour
Benign follicular nodule of the thyroid gland
Benign phyllodes tumour of the breast
Benign prostatic hyperplasia (BPH)
Bile duct adenoma
Bile duct hamartoma
Biphasic salivary gland neoplasm
Borderline Brenner tumour
Borderline phyllodes tumour of the breast
Bowen’s disease
Bullous pemphigoid
Burkitt lymphoma

C

Cardiac myxoma
Carcinoid tumourlet of the lung
Carcinoma ex pleomorphic adenoma
Carcinosarcoma of the uterus
Celiac disease
Cellular fibroma of the ovary
Cellular leiomyoma of the uterus
Central atypical cartilaginous tumour
Cervical intraepithelial neoplasia (CIN)
Chemical gastropathy
Cholangiocarcinoma
Chondroblastic osteosarcoma
Chondrosarcoma
Chordoma
Chromophobe renal cell carcinoma
Chronic active colitis
Chronic active gastritis
Chronic cervicitis
Chronic cholecystitis
Chronic cholecystitis with cholelithiasis
Chronic colitis
Chronic gastritis
Chronic inactive gastritis
Chronic lymphocytic leukemia
Chronic lymphocytic thyroiditis
Chronic rhinosinusitis
Cirrhosis
Classic follicular lymphoma
Clear cell carcinoma of the ovary
Clear cell renal cell carcinoma
Collagenous colitis
Columnar cell change (CCC) of the breast
Columnar cell hyperplasia (CCH) of the breast
Complex sclerosing lesion of the breast
Compound nevus
Condyloma acuminatum
Congenital nevus
Conventional chondrosarcoma
Corpus luteum cyst
Cortical inclusion cyst
Cutaneous lupus erythematosus
Cylindroma
Cystic follicle of the ovary

D

Dedifferentiated chondrosarcoma
Dedifferentiated liposarcoma
Deep fibromatosis
Dentigerous cyst
Dermal nevus
Dermatofibroma
Dermatofibrosarcoma protuberans (DFSP)
Desmoid tumour
Diabetic nephropathy (diabetic glomerulosclerosis)
Differentiated vulvar intraepithelial neoplasia (dVIN)
Diffuse alveolar damage (DAD)
Diffuse large B-cell lymphoma
Diffuse papillary hyperplasia of the thyroid gland
Disordered proliferative endometrium
Ductal adenocarcinoma of the pancreas
Ductal carcinoma in situ (DCIS) of the breast
Duodenal adenoma
Dysplasia in the stomach
Dysplastic nevus

E

EBV-positive diffuse large B cell lymphoma
Embryonal carcinoma of the male testis
Embryonal rhabdomyosarcoma
Encapsulated angioinvasive follicular thyroid carcinoma
Encapsulated angioinvasive Hurthle cell carcinoma
Encapsulated angioinvasive oncocytic carcinoma
Enchondroma
Endocervical adenocarcinoma
Endocervical polyp
Endometrial clear cell carcinoma
Endometrial endometrioid carcinoma
Endometrial hyperplasia without atypia
Endometrial polyp
Endometrial serous carcinoma
Endometrioid borderline tumour of the ovary
Endometrioid carcinoma of the ovary
Endometrioid intraepithelial neoplasia (EIN)
Endometriosis
Enlarged and hypercellular parathyroid gland
Eosinophilic esophagitis
Epidermoid cyst
Epithelial-myoepithelial carcinoma
Epithelioid hemangioendothelioma
Epithelioid sarcoma
Erosive gastritis
Ewing sarcoma
Extramammary Paget disease of the vulva
Extranodal marginal zone lymphoma of mucosal-associated lymphoid tissue
Extranodal NK/T cell lymphoma

F

Fibroadenoma of the breast
Fibrocystic change of the breast
Fibroma of the oral cavity
Fibromatosis
Fibrous histiocytoma
Fibrothecoma
Flat epithelial atypia of the breast
Focal active colitis
Follicle cyst of the ovary
Follicular adenoma of the thyroid gland
Follicular lymphoma
Follicular neoplasm of the thyroid gland
Foveolar type adenoma of the stomach
Fracture

G

Ganglion cyst
Ganglioneuroma
Gastric dysplasia
Gastrointestinal stromal tumour (GIST)
Giant cell tumour of bone
Giant cell tumour of tendon sheath
Glioblastoma, IDH-wildtype
Glomus tumour
Goblet cell adenocarcinoma
Granular cell tumour
Granulosa cell tumour, adult type

H

Helicobacter gastritis
Hemangioma
Hemolytic anemia
Hepatocellular carcinoma (HCC)
Hibernoma
Hidradenoma
High grade dysplasia of the larynx
High grade papillary urothelial carcinoma
High grade prostatic intraepithelial neoplasia (PIN)
High grade serous carcinoma of the ovary and fallopian tube
High grade squamous intraepithelial lesion (HSIL) of the anal canal
High grade squamous intraepithelial lesion (HSIL) of the cervix
High grade squamous intraepithelial lesion (HSIL) of the vagina
High grade squamous intraepithelial lesion (HSIL) of the vulva
Hodgkin lymphoma
HPV-associated squamous cell carcinoma of the oropharynx
HPV-associated squamous cell carcinoma of the penis
Hurthle cell adenoma
Hurthle cell carcinoma
Hyalinizing clear cell carcinoma (HCCC)
Hyperplastic polyp of the colon and rectum
Hyperplastic polyp of the stomach
Hypertrophic candidiasis

I

Immature teratoma of the ovary
Inactive endometrium
Infiltrating basal cell carcinoma of the skin
Infiltrative follicular variant papillary thyroid carcinoma
Inflammatory myofibroblastic tumour (IMT)
Inflammatory polyp of the colon and rectum
Inflammatory polyp of the stomach
Intestinal type adenoma of the stomach
Intestinal type sinonasal adenocarcinoma
Intracholecystic papillary neoplasm
Intraductal papilloma of the breast
Intraductal papillary mucinous neoplasm (IPMN)
Intrahepatic cholangiocarcinoma
Intramucosal adenocarcinoma of the esophagus
Intramuscular lipoma
Intramuscular myxoma
Invasive adenocarcinoma of the colon and rectum
Invasive apocrine carcinoma of the breast
Invasive ductal carcinoma of the breast
Invasive ductal carcinoma with apocrine features of the breast
Invasive encapsulated follicular variant papillary thyroid carcinoma
Invasive lobular carcinoma of the breast
Invasive mammary carcinoma
Invasive melanoma of the skin
Invasive mucinous carcinoma of the breast
Iron-deficiency anemia

J

Junctional nevus
Juvenile granulosa cell tumour

K

Kaposi sarcoma
Keloid scar
Keratinizing squamous dysplasia of the larynx
Keratinizing squamous dysplasia of the oral cavity
Keratoacanthoma

L

Large cell neuroendocrine carcinoma of the lung
Leiomyoma of the uterus
Leiomyosarcoma
Leiomyosarcoma of the uterus
Lentigo maligna
Lichen sclerosus of the vulva
Lichenoid mucositis
Lipoma
Lobular capillary hemangioma
Lobular carcinoma in situ (LCIS) of the breast
Low grade appendiceal mucinous neoplasm (LAMN)
Low grade papillary urothelial carcinoma
Low grade serous carcinoma of the ovary
Low grade squamous intraepithelial lesion of the anus and anal canal
Low grade squamous intraepithelial lesion of the cervix
Low grade squamous intraepithelial lesion of the vagina
Low grade squamous intraepithelial lesion of the vulva
Lymphocytic colitis
Lymphoepithelial carcinoma

M

Malignant peripheral nerve sheath tumour (MPNST)
Mantle cell lymphoma
Mature cystic teratoma of the ovary
Medullary carcinoma of the colon
Medullary thyroid carcinoma
Megaloblastic anemia
Melanoma in situ of the skin
Membranous glomerulonephritis
Meningioma
Merkel cell carcinoma
Mesothelioma
Micronodular basal cell carcinoma of the skin
Microscopic colitis
Minimally invasive adenocarcinoma (MIA) of the lung
Minimally invasive encapsulated follicular variant papillary thyroid carcinoma
Minimally invasive follicular thyroid carcinoma
Minimally invasive Hurthle cell carcinoma
Minimally invasive oncocytic carcinoma of the thyroid gland
Mitotically active cellular fibroma of the ovary
Mitotically active leiomyoma of the uterus
Mixed germ-cell tumour of the male testis
Mucinous adenocarcinoma of the colon and rectum
Mucinous borderline tumour of the ovary
Mucinous carcinoma of the ovary
Mucinous cystadenofibroma of the ovary
Mucinous cystadenoma of the ovary
Mucinous cystic neoplasm of the pancreas
Mucocele of the oral cavity
Mucoepidermoid carcinoma
Mucosal melanoma of the head and neck
Myelodysplastic syndromes (MDS)
Myelolipoma
Myoepithelial carcinoma of the salivary glands
Myoepithelioma of the salivary glands
Myoepitheloma of soft tissue
Myxoma
Myxofibrosarcoma
Myxoid liposarcoma

N

Nasopharyngeal carcinoma
Negative for intraepithelial lesion or malignancy (NILM) of the cervix
Neuroendocrine carcinoma of the colon and rectum
Neurofibroma
Nodular basal cell carcinoma of the skin
Nodular fasciitis
Nodular follicular disease of the thyroid gland
Nodular thyroid hyperplasia
Nonampullary duodenal adenoma​
Non-Hodgkin lymphoma
Non-HPV squamous cell carcinoma of the penis
Non-intestinal-type sinonasal adenocarcinoma
Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)
Non-keratinizing squamous cell carcinoma of the oropharynx
NUT carcinoma

O

Odontogenic keratocyst
Olfactory neuroblastoma
Oligodendroglioma
Oncocytic adenoma of the thyroid gland
Oncocytoma of the head and neck
Oncocytoma of the kidney
Oral epithelial dysplasia
Organizing pneumonia
Osteoblastoma
Osteochondroma
Osteoid osteoma
Osteosarcoma
Ovarian fibroma

P

Paget disease of the breast
Palmar fibromatosis
Papillary lesion of the breast
Papillary renal cell carcinoma
Papillary thyroid carcinoma
Papillary urothelial carcinoma
Parathyroid adenoma
Paratubal cyst
Penile intraepithelial neoplasia (PeIN)
Peptic duodenitis
Periovarian adhesions
Perivascular epithelioid cell tumour (PEComa)
Pheochromocytoma
Phyllodes tumour of the breast
Pigmented basal cell carcinoma of the skin
Pilar cyst
Plantar fibromatosis
Plasmablastic lymphoma
Plasma cell neoplasm
Plasmacytoma
Pleomorphic adenoma
Pleomorphic lipoma
Polymorphous adenocarcinoma
Pneumonia
Polypoid cystitis
Poorly differentiated neuroendocrine carcinoma of the colon and rectum
Poorly differentiated thyroid carcinoma
Poroma
Postoperative spindle cell nodule
Primary biliary cholangitis (PBC)
Primary sclerosing cholangitis (PSC)
Proliferative endometrium
Prostatic adenocarcinoma
Pseudoangiomatous stromal hyperplasia (PASH) of the breast
Pseudosarcomatous myofibroblastic proliferation
Pyogenic granuloma

R

Radial scar of the breast
Reactive gastropathy
Reactive lymphoid hyperplasia
Reflux esophagitis
Rhabdomyosarcoma

S

Salivary duct carcinoma
Schneidrian papilloma
Schwannoma
Sclerosing adenosis of the breast
Sclerosing basal cell carcinoma of the skin
Sebaceous carcinoma
Seborrheic keratosis
Secretory carcinoma of the breast
Secretory carcinoma of the salivary glands
Secretory endometrium
Seminoma of the male testis
Serous borderline tumour of the ovary
Serous cystadenoma of the ovary
Serous tubal intraepithelial carcinoma (STIC)​ of the fallopian tube
Sessile serrated adenoma of the colon and rectum
Sessile serrated lesion of the colon and rectum
Sessile serrated polyp of the colon and rectum
Sex cord-stromal tumour of the ovary
Sinonasal angiofibroma
Sinonasal inflammatory polyp
Sinonasal keratinizing squamous cell carcinoma (KSCC)
Sinonasal non-keratinizing squamous cell carcinoma (NKSCC)
Sinonasal papilloma
Sinonasal undifferentiated carcinoma (SNUC)
SMARCB1-deficient sinonasal carcinoma
Small cell carcinoma of the lung
Small lymphocytic lymphoma (SLL)
Solitary fibrous tumour
Spermatocele
Spermatocytic tumour
Spindle cell lipoma
Spindle cell squamous cell carcinoma of the larynx
Spiradenoma
Spitz nevus
Spongiotic dermatitis
Squamous cell carcinoma in situ
Squamous cell carcinoma in situ of the larynx
Squamous cell carcinoma in situ of the oral cavity
Squamous cell carcinoma in situ of the skin
Squamous cell carcinoma of the anal canal
Squamous cell carcinoma of the cervix
Squamous cell carcinoma of the esophagus
Squamous cell carcinoma of the larynx
Squamous cell carcinoma of the lung
Squamous cell carcinoma of the oral cavity
Squamous cell carcinoma of the oropharynx
Squamous cell carcinoma of the skin
Squamous cell carcinoma of the vagina
Squamous cell carcinoma of the vulva
Squamous dysplasia of the oral cavity
Squamous papilloma
Steatohepatitis
Steatosis
Superficial basal cell carcinoma of the skin
Superficial fibromatosis
Suspicious for follicular neoplasm of the thyroid gland
Synovial sarcoma
Syringoma

T

T-lymphoblastic leukemia (T-ALL)
T-lymphoblastic lymphoma (T-LBL)
TFE3-rearranged renal cell carcinoma
Thecoma
Thrombotic microangiopathy
Thyroid nodule
Traditional serrated adenoma of the colon and rectum
Trichilemmal cyst
Tuberculosis
Tubular adenoma of the colon and rectum
Tubulovillous adenoma of the colon and rectum
Typical carcinoid tumour of the lung

U

Undifferentiated pleomorphic sarcoma
Urothelial carcinoma
Urothelial carcinoma in situ
Urothelial papilloma
Usual ductal hyperplasia of the breast
Usual interstitial pneumonia
Uterine serous carcinoma

V

Verruca vulgaris
Villous adenoma of the colon and rectum
Vocal cord nodule
Vocal cord polyp
von Meyenburg complex
Vulvar intraepithelial neoplasia (VIN)

W

Warthin tumour
Well differentiated liposarcoma
Well differentiated neuroendocrine tumour of the appendix
Well differentiated neuroendocrine tumour of the colon and rectum
Well differentiated neuroendocrine tumour of the pancreas
Well differentiated neuroendocrine tumour of the stomach
Widely invasive follicular thyroid carcinoma
Widely invasive Hurthle cell carcinoma
Widely invasive oncocytic carcinoma of the thyroid gland

X

Xanthelasma
Xanthoma
Xp11 translocation renal cell carcinoma

Y

Yolk-sac tumour of the male testis
A+ A A-