IHC Flashcards
What markers are associated with Squamous cell carcinoma?
high molecular weight cytokeratins, EMA
What markers are used to identify Melanoma?
S100, MELAN-A, HMB-45
Identify the markers for Mesothelioma.
calretinin, CK5/6
What are the markers for Adenocarcinoma lung?
CK7+, CK20-, TTF+
What markers characterize Adenocarcinoma colon?
CK7-, CK20+, TTF1-, CDX2+
Which markers are associated with Neuroendocrine tumors?
chromogranin, synaptophysin, neuron specific enolase
What markers are used to identify GIST?
CD117, PDGFRa
List the markers for Hepatocellular carcinoma.
HePAR1, AFP, EMA, pankerattin
What markers are associated with Adrenocortical neoplasms?
inhibin, melanA
Identify the markers for Pheochromocytoma.
NSE, chromogranin, synaptophysin, opiod peptides
What markers characterize Renal cell carcinoma?
CK8, CK18, CD10, RCC antigen
List the markers for Transitional cell carcinoma.
thrombomodulin, uroplakin
What markers are associated with Seminoma?
PLAP, CD117
What markers are used to identify Embryonal carcinoma?
CD30
What is the marker for Yolk sac tumor?
AFP
Identify the markers for sex cord stromal tumors.
Inhibin, calretinin, activin, mullerian inhibiting substance
What markers are associated with Leiomyoma?
smooth muscle actin, caldesmon, calponin, desmin
What markers characterize Serous ovarian tumors?
CK7+, CK20-
What markers are used for Invasive ductal carcinoma of the breast?
ER, PR, Her2neu
What is a specific marker for Invasive lobular carcinoma?
absence of Ecadherin
What does CD45 represent?
common leucocyte antigen
List the Pan B markers.
CD19, CD20, CD21, CD22, PAX5, CD79a
List the Pan T markers.
cytoplasmic CD3, CD2, CD5
What markers are associated with NK cells?
CD56, CD16
What markers are used for Plasma cells?
CD138, immunoglobulin kappa/lambda light chains, MUM1
What is the marker for ALL and Burkitt’s lymphoma?
CD10 positive
What does Tdt positivity indicate?
ALL
What markers are associated with Hodgkin’s lymphoma?
CD15, CD30 - CLASSIC
What markers characterize Anaplastic large cell lymphoma?
CD30+, ALK1, EMA+
What markers are used for Mantle cell lymphoma?
cyclinD1, CD5+, pan B markers
What markers are associated with Langerhans cell histiocytosis?
CD1a, S100, LANGERIN
What markers are used for Hairy cell leukemia?
CD19, CD20, CD22, CD11c, CD25, CD103
What markers are associated with Ewing’s sarcoma?
CD99, vimentin, NSE
What does Cytokeratin indicate?
Carcinomas, epithelioid sarcoma, synovial sarcoma, some angiosarcomas, leiomyosarcomas, mesothelioma, extrarenal rhabdoid tumor
What does Vimentin indicate?
Sarcomas, melanoma, some carcinomas and lymphomas
What does Desmin indicate?
Benign and malignant smooth and skeletal muscle tumors
What does Glial fibrillary acidic protein indicate?
Gliomas, some schwannomas
What do Neurofilaments indicate?
Neuroblastic tumors
What does Pan-muscle actin indicate?
Benign and malignant smooth and skeletal muscle tumors, myofibroblastic tumors and pseudotumors
What does Smooth muscle actin indicate?
Benign and malignant smooth muscle tumors, myofibroblastic tumors and pseudotumors
What do Myogenic nuclear regulatory proteins indicate?
Rhabdomyosarcoma
What does S-100 protein indicate?
Melanoma, benign and malignant peripheral nerve sheath tumors, cartilaginous tumors, normal adipose tissue, Langerhans cells
What does Epithelial membrane antigen indicate?
Carcinomas, epithelioid sarcoma, synovial sarcoma, perineurioma, meningioma, anaplastic large cell lymphoma
What does CD31 indicate?
Benign and malignant vascular tumors
What does von Willebrand factor indicate?
Benign and malignant vascular tumors
What does CD34 indicate?
Benign and malignant vascular tumors, solitary fibrous tumor, hemangiopericytoma, epithelioid sarcoma, dermatofibrosarcoma protuberans
What does CD99 indicate?
Ewing’s sarcoma/primitive neuroectodermal tumor, some rhabdomyosarcomas, some synovial sarcomas, lymphoblastic lymphoma, mesenchymal chondrosarcoma, small cell osteosarcoma
What does CD45 indicate?
Non-Hodgkin lymphoma
What does CD30 indicate?
Anaplastic large cell lymphoma, embryonal carcinoma
What does CD68 indicate?
Macrophages, fibrohistiocytic tumors, granular cell tumors, various sarcomas, melanomas, carcinomas
What are Melanosome-specific antigens used for?
Melanoma, PEComa, clear cell sarcoma, melanotic schwannoma
What do MDM2/CDK4 indicate?
Atypical lipomatous tumor and dedifferentiated liposarcoma
What does Glut-1 indicate?
Perineurioma, infantile hemangioma
What does Protein kinase C ϑ indicate?
GIST
What does Bcl-2 indicate?
Synovial sarcoma, solitary fibrous tumor, other spindle cell tumors
What is the normal cell counterpart for Angiosarcoma?
Endothelium
What is the useful marker for Angiosarcoma?
CD31, CD34, FLI-1, von Willebrand factor, ulex lectin
What is the normal cell counterpart for Leiomyosarcoma?
Smooth muscle
What are the useful markers for Leiomyosarcoma?
Muscle (smooth) actins, desmin, caldesmon, myosin heavy chain
What is the normal cell counterpart for Rhabdomyosarcoma?
Skeletal muscle
What are the useful markers for Rhabdomyosarcoma?
MyoD1, myogenin; muscle (sarcomeric) actins; desmin