Diagnosis library

MyPathologyReport
October 2, 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

Blood

Anemia of chronic disease
Hemolytic anemia
Iron-deficiency anemia
Megaloblastic anemia
Thrombotic microangiopathy

Bones

Central atypical cartilaginous tumour
Chondroblastic osteosarcoma
Chondrosarcoma
Chordoma
Conventional chondrosarcoma
Dedifferentiated chondrosarcoma
Enchondroma
Fracture
Giant cell tumour of bone
Osteoblastoma
Osteochondroma
Osteoid osteoma
Osteosarcoma
Plasmacytoma
Breast
Atypical ductal hyperplasia (ADH)
Atypical lobular hyperplasia
Benign phyllodes tumour
Borderline phyllodes tumour of the breast
Columnar cell change (CCC) of the breast
Columnar cell hyperplasia (CCH) of the breast
Complex sclerosing lesion of the breast
Ductal carcinoma in situ (DCIS) of the breast
Fibroadenoma of the breast
Fibrocystic change of the breast
Flat epithelial atypia (FEA)
Intraductal papilloma of the breast
Invasive ductal carcinoma of the breast
Invasive ductal carcinoma with apocrine features of the breast
Invasive lobular carcinoma of the breast
Invasive mammary carcinoma
Invasive mucinous carcinoma of the breast
Lobular carcinoma in situ (LCIS) of the breast
Paget disease of the breast
Papillary lesion of the breast
Phyllodes tumour of the breast
Pseudoangiomatous stromal hyperplasia (PASH) of the breast
Radial scar of the breast
Sclerosing adenosis of the breast
Secretory carcinoma of the breast
Usual ductal hyperplasia of the breast

Cardiovascular system

Cardiac myxoma

Central nervous system

Brain

Astrocytoma, IDH-mutant, CNS WHO grade 2
Astrocytoma, IDH-mutant, CNS WHO grade 3
Astrocytoma, IDH-mutant, CNS WHO grade 4
Glioblastoma, IDH-wildtype
Meningioma
Oligodendroglioma

Digestive system

Appendix

Acute appendicitis
Goblet cell adenocarcinoma
Low grade appendiceal mucinous neoplasm (LAMN)
Well differentiated neuroendocrine tumour of the appendix

Anal canal

Anal intraepithelial neoplasia (AIN)
High grade squamous intraepithelial lesion (HSIL) of the anus and anal canal
Low grade squamous intraepithelial lesion (LSIL) of the anus and anal canal
Squamous cell carcinoma of the anal canal

Colon and rectum

Adenocarcinoma of the colon and rectum
Chronic active colitis
Collagenous colitis
Focal active colitis
Hyperplastic polyp of the colon and rectum
Inflammatory polyp of the colon and rectum
Invasive adenocarcinoma of the colon and rectum
Lymphocytic colitis
Medullary carcinoma of the colon
Microscopic colitis
Mucinous adenocarcinoma of the colon and rectum
Neuroendocrine carcinoma of the colon and rectum
Poorly differentiated neuroendocrine carcinoma of the colon and rectum
Sessile serrated adenoma of the colon and rectum
Sessile serrated lesion of the colon and rectum
Sessile serrated polyp of the colon and rectum
Traditional serrated adenoma of the colon and rectum
Tubular adenoma of the colon and rectum
Tubulovillous adenoma of the colon and rectum
Villous adenoma of the colon and rectum
Well differentiated neuroendocrine tumour of the colon and rectum

Esophagus

Adenocarcinoma of the esophagus
Barrett’s esophagus
Candida esophagitis
CMV esophagitis
Eosinophilic esophagitis
Herpes simplex esophagitis
Erosive esophagitis
Intramucosal adenocarcinoma of the esophagus
Reflux esophagitis
Squamous cell carcinoma of the esophagus

Gallbladder

Acute cholecystitis
Chronic cholecystitis
Chronic cholecystitis with cholelithiasis
Intracholecystic papillary neoplasm

Liver and bile ducts

Autoimmune hepatitis
Bile duct adenoma
Bile duct hamartoma
Cholangiocarcinoma
Cirrhosis
Focal nodular hyperplasia (FNH)
Hepatocellular carcinoma (HCC)
Intrahepatic cholangiocarcinoma
Primary biliary cholangitis (PBC)
Primary sclerosing cholangitis (PSC)
Steatohepatitis
Steatosis
von Meyenburg complex

Small intestine

Celiac disease
Duodenal adenoma
Nonampullary duodenal adenoma​
Peptic duodenitis

Stomach

Adenocarcinoma of the stomach
Chemical gastropathy
Chronic active gastritis
Dysplasia in the stomach
Erosive gastritis
Foveolar type adenoma of the stomach
Gastric dysplasia
Gastrointestinal stromal tumour (GIST)
Helicobacter gastritis
Hyperplastic polyp of the stomach
Inflammatory polyp of the stomach
Intestinal type adenoma of the stomach
Reactive gastropathy
Well differentiated neuroendocrine tumour of the stomach

Pancreas

Ductal adenocarcinoma of the pancreas
Mucinous cystic neoplasm of the pancreas
Well differentiated neuroendocrine tumour of the pancreas

Endocrine organs

Thyroid gland

Anaplastic thyroid carcinoma
Benign follicular nodule
Chronic lymphocytic thyroiditis
Diffuse papillary hyperplasia of the thyroid gland
Encapsulated angioinvasive follicular thyroid carcinoma
Encapsulated angioinvasive Hurthle cell carcinoma
Encapsulated angioinvasive oncocytic carcinoma
Follicular adenoma of the thyroid gland
Follicular neoplasm of the thyroid gland
Hurthle cell adenoma
Hurthle cell carcinoma
Infiltrative follicular variant papillary thyroid carcinoma
Invasive encapsulated follicular variant papillary thyroid carcinoma
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
Nodular follicular disease of the thyroid gland
Nodular thyroid hyperplasia
Non-intestinal-type sinonasal adenocarcinoma
Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)
Oncocytic adenoma of the thyroid gland
Papillary thyroid carcinoma
Poorly differentiated thyroid carcinoma
Suspicious for follicular neoplasm of the thyroid gland
Widely invasive follicular thyroid carcinoma
Widely invasive Hurthle cell carcinoma
Widely invasive oncocytic carcinoma of the thyroid gland

Adrenal glands

Adrenocortical adenoma
Adrenocortical carcinoma
Myelolipoma
Pheochromocytoma

Parathyroid glands

Enlarged and hypercellular parathyroid gland
Parathyroid adenoma

Female reproductive system

Cervix

Adenocarcinoma in situ (AIS) of the cervix
ASC-H on a Pap smear of the cervix
ASC-US on a Pap smear of the cervix
Atypical glandular cells, favor neoplastic
Atypical glandular cells, not otherwise specified
Cervical intraepithelial neoplasia (CIN)
Endocervical adenocarcinoma
Endocervical polyp
High grade squamous intraepithelial lesion (HSIL) of the cervix
Low grade squamous intraepithelial lesion (LSIL) of the cervix
Negative for intraepithelial lesion or malignancy (NILM) of the cervix
Squamous cell carcinoma of the cervix

Ovaries and fallopian tube

Atrophy of the ovary
Benign Brenner tumour
Borderline Brenner tumour
Cellular fibroma of the ovary
Clear cell carcinoma of the ovary
Corpus luteum cyst
Cortical inclusion cyst
Cystic follicle of the ovary
Endometrioid borderline tumour of the ovary
Endometrioid carcinoma of the ovary
Fibrothecoma
Follicle cyst of the ovary
Granulosa cell tumour, adult type
High grade serous carcinoma of the ovary and fallopian tube
Immature teratoma of the ovary
Low grade serous carcinoma of the ovary
Mature cystic teratoma of the ovary
Mitotically active cellular fibroma of the ovary
Mucinous borderline tumour of the ovary
Mucinous carcinoma of the ovary
Mucinous cystadenofibroma of the ovary
Mucinous cystadenoma of the ovary
Ovarian fibroma
Paratubal cyst
Periovarian adhesions
Serous borderline tumour of the ovary
Serous cystadenoma of the ovary
Serous tubal intraepithelial carcinoma (STIC)​ of the fallopian tube
Sex cord-stromal tumour of the ovary
Thecoma

Uterus and endometrium

Atrophic endometrium
Atypical endometrial hyperplasia
Carcinosarcoma of the uterus
Cellular leiomyoma of the uterus
Disordered proliferative endometrium
Endometrial clear cell carcinoma
Endometrial endometrioid carcinoma
Endometrial hyperplasia without atypia
Endometrial polyp
Endometrial serous carcinoma
Endometrioid intraepithelial neoplasia (EIN)
Endometriosis
Inactive endometrium
Leiomyoma of the uterus
Leiomyosarcoma of the uterus
Mitotically active leiomyoma of the uterus
Proliferative endometrium
Secretory endometrium
Uterine serous carcinoma

Vagina

High grade squamous intraepithelial lesion (HSIL) of the vagina
Low grade squamous intraepithelial lesion of the vagina
Squamous cell carcinoma of the vagina

Vulva

Differentiated vulvar intraepithelial neoplasia (dVIN)
Extramammary Paget disease of the vulva
High grade squamous intraepithelial lesion (HSIL) of the vulva
Low grade squamous intraepithelial lesion of the vulva
Lichen sclerosus of the vulva
Squamous cell carcinoma of the vulva
Vulvar intraepithelial neoplasia (VIN)

Head and neck

Bone of the jaw

Ameloblastoma
Dentigerous cyst

Oral cavity

Acute mucositis
Fibroma of the oral cavity
Keratinizing squamous dysplasia of the oral cavity
Lichenoid mucositis
Mucocele of the oral cavity
Mucosal melanoma of the head and neck
Oral epithelial dysplasia
Squamous cell carcinoma in situ of the oral cavity
Squamous cell carcinoma of the oral cavity
Squamous dysplasia of the oral cavity
Squamous papilloma

Oropharynx (tonsils, soft palate, base of tongue)

HPV-associated squamous cell carcinoma of the oropharynx
Non-keratinizing squamous cell carcinoma of the oropharynx
Squamous cell carcinoma of the oropharynx

Larynx

High grade dysplasia of the larynx
Keratinizing squamous dysplasia of the larynx
Spindle cell squamous cell carcinoma of the larynx
Squamous cell carcinoma in situ of the larynx
Squamous cell carcinoma of the larynx
Squamous dysplasia of the larynx
Vocal cord nodule
Vocal cord polyp

Nasal cavity and paranasal sinuses

Chronic rhinosinusitis
Extranodal NK/T cell lymphoma
Intestinal-type sinonasal adenocarcinoma
Mucosal melanoma of the head and neck
Non-intestinal-type sinonasal adenocarcinoma
Olfactory neuroblastoma
NUT carcinoma
Pyogenic granuloma
Schneidrian papilloma
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

Nasopharynx

Nasopharyngeal carcinoma

Salivary glands

Acinic cell carcinoma
Adenoid cystic carcinoma
Biphasic salivary gland neoplasm
Carcinoma ex pleomorphic adenoma
Epithelial-myoepithelial carcinoma
Hyalinizing clear cell carcinoma
Lymphoepithelial carcinoma
Mucoepidermoid carcinoma
Myoepithelial carcinoma of the salivary glands
Myoepithelioma of the salivary glands
Oncocytoma of the head and neck
Pleomorphic adenoma
Polymorphous adenocarcinoma
Salivary duct carcinoma
Secretory carcinoma
Warthin tumour

Immune system

Lymph nodes

ALK-negative anaplastic large cell lymphoma
ALK-positive anaplastic large cell lymphoma
Burkitt lymphoma
Classic follicular lymphoma
Diffuse large B cell lymphoma
EBV-positive diffuse large B cell lymphoma
Extranodal marginal zone lymphoma of mucosal-associated lymphoid tissue
Follicular lymphoma
Hodgkin lymphoma
Mantle cell lymphoma
Non-Hodgkin lymphoma
Plasma cell neoplasm
Plasmacytoma
Small lymphocytic lymphoma (SLL)

Bone marrow

Chronic lymphocytic leukemia
Myelodysplastic syndromes (MDS)

Male reproductive system

Penis and scrotum

HPV-associated squamous cell carcinoma of the penis
Non-HPV squamous cell carcinoma of the penis
Penile intraepithelial neoplasia (PeIN)

Prostate

Adenocarcinoma of the prostate​
Benign prostatic hyperplasia (BPH)
High grade prostatic intraepithelial neoplasia (PIN)
Postoperative spindle cell nodule
Prostatic adenocarcinoma

Testicles

Embryonal carcinoma of the male testis
Mixed germ-cell tumour of the male testis
Seminoma of the male testis
Spermatocele
Spermatocytic tumour
Yolk-sac tumour of the male testis

Respiratory system

Lungs

Acute lung injury
Adenocarcinoma
Adenocarcinoma in situ (AIS)
Atypical carcinoid tumour
Carcinoid tumourlet
Diffuse alveolar damage (DAD)
Large cell neuroendocrine carcinoma of the lung
Lymphoepithelial carcinoma
Minimally invasive adenocarcinoma (MIA) of the lung
NUT carcinoma
Organizing pneumonia
Pneumonia
Small cell carcinoma of the lung
Squamous cell carcinoma of the lung
Typical carcinoid tumour of the lung
Usual interstitial pneumonia

Pleura

Mesothelioma

Soft tissues

Alveolar rhabdomyosarcoma
Angioleiomyoma
Angiolipoma
Angiomyolipoma (AML)
Angiosarcoma
Atypical lipomatous tumour (ALT)
Dedifferentiated liposarcoma
Deep fibromatosis
Desmoid tumour
Embryonal rhabdomyosarcoma
Epithelioid sarcoma
Ewing sarcoma
Fibromatosis
Fibrous histiocytoma
Ganglion cyst
Ganglioneuroma
Giant cell tumour of tendon sheath
Glomus tumour
Granular cell tumour
Hemangioma
Hibernoma
Intramuscular lipoma
Intramuscular myxoma
Kaposi sarcoma
Leiomyoma
Leiomyosarcoma
Lipoma
Lobular capillary hemangioma
Malignant peripheral nerve sheath tumour (MPNST)
Myoepithelioma of soft tissue
Myxoma
Myxofibrosarcoma
Myxoid liposarcoma
Neurofibroma
Nodular fasciitis
Palmar fibromatosis
Perivascular epithelioid cell tumour (PEComa)
Plantar fibromatosis
Pleomorphic lipoma
Pyogenic granuloma
Rhabdomyosarcoma
Schwannoma
Solitary fibrous tumour
Spindle cell lipoma
Superficial fibromatosis
Synovial sarcoma
Undifferentiated pleomorphic sarcoma
Well differentiated liposarcoma
Xanthoma

Skin

Actinic keratosis
Basal cell adenoma
Basal cell carcinoma
Basosquamous carcinoma
Bowen’s disease
Bullous pemphigoid
Compound nevus
Condyloma acuminatum
Congenital nevus
Cutaneous lupus erythematosus
Cylindroma
Dermal nevus
Dermatofibroma
Dermatofibrosarcoma protuberans (DFSP)
Dysplastic nevus
Epidermoid cyst
Hemangioma
Hidradenoma
Infiltrating basal cell carcinoma of the skin
Invasive melanoma of the skin
Junctional nevus
Keloid scar
Lentigo maligna
Melanoma in situ of the skin
Merkel cell carcinoma
Micronodular basal cell carcinoma of the skin
Nodular basal cell carcinoma of the skin
Pigmented basal cell carcinoma of the skin
Pilar cyst
Poroma
Pyogenic granuloma
Sclerosing basal cell carcinoma of the skin
Sebaceous carcinoma
Seborrheic keratosis
Spiradenoma
Spitz nevus
Spongiotic dermatitis
Squamous cell carcinoma in situ of the skin
Squamous cell carcinoma of the skin
Superficial basal cell carcinoma of the skin
Syringoma
Trichilemmal cyst
Verruca vulgaris
Xanthelasma

Urinary system

Bladder, ureters, and urethra

High grade papillary urothelial carcinoma
Low grade papillary urothelial carcinoma
Papillary urothelial carcinoma
Polypoid cystitis
Postoperative spindle cell nodule
Pseudosarcomatous myofibroblastic proliferation
Urothelial carcinoma
Urothelial carcinoma in situ
Urothelial papilloma

Kidneys

Chromophobe renal cell carcinoma
Clear cell renal cell carcinoma
Diabetic nephropathy (diabetic glomerulosclerosis)
Membranous glomerulonephritis
Oncocytoma of the kidney
Papillary renal cell carcinoma
TFE3-rearranged renal cell carcinoma
Xp11 translocation renal cell carcinoma
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