8.7.2013(pathology)60 Flashcards
Caspase 1
ICE
interleukin 1 beta converting enzyme
Caspases are
Cysteine dependant Aspartate directed proteases
Chromosomal alterations in oncocytoma
Deletions at 10q
Mutations in Dyskeratosis congenita
X linked - Dyskerin
AD- hTERC,hTERT(telomerase)
Histological types of malignant mesothelioma
Epithelial
Fibrous(Sarcomatoid)
Biphasic/mixed type
Gold standard for diagnosis of malignant mesothelioma
EM appearance of long branching microvilli
IHC of mesothelioma
Pankeratin Keratin 5/6 Calretinin WT1 Negative for epithelial markers like CEA,CD15
Breast changes without increased risk of malignancy
Duct ectasia Cysts Apocrine changes Mild hyperplasia Adenosis Fibroadenoma without complex features Sclerosing adenosis Intraductal papilloma
Breast changes associated with increased risk of malignancy
Florid hyperplasia
Atypical lobular hyperplasia
Atypical ductal hyperplasia
Ductal involvement by cells of atypical ductal hyperplasia(highest risk next only to in situ lesions)
Syndromes associated with breast cancer
Li fraumeni Peutz jegher (STK11/LKB1) Cowden Muir torre(MSH2/MLH1) Ataxia telangiectasia
Full name of bloom Richardson grading
Nottingham combined histologic grade of Elston Ellis modification of the scarf bloom Richardson grading system
HLA associated with juvenile Pauciarticular arthritis
DR8
DR5
HLA associated with rheumatoid arthritis
DR4
HLA associated with sjogren syndrome
DR3
HLA associated with SLE
Caucasian DR3
Japanese DR2
HLA associated with celiac disease
DQ2
HLA associated with dermatitis herpetiformis
DR3
HLA associated with chronic active hepatitis
DR3
HLA associated with psoriasis vulgaris
Cw6
HLA associated with Pemphigus vulgaris
DR4
DQ1
HLA associated with Bullous pemphigoid
DQ7
HLA associated with DM1
DR2
DR3
DR4(commonly associated)
DQ8
HLA associated with graves disease
B8
DR3
HLA associated with adrenal insufficiency
DR3
HLA associated with myasthenia gravis
B8
DR3
HLA associated with multiple sclerosis
DR2
HLA associated with Behcet disease
B51
HLA associated with congenital adrenal hyperplasia
B47
HLA associated with narcolepsy
DR2
HLA associated with goodpasture syndrome
DR2
Metastasis to heart arise from
Lung Breast Melanoma Leukemia Lymphoma
Appearance of amyloid in different stains
H & E- pink,hyaline,homogenous Methyl violet/crystal violet- metachromasia Congo red Thioflavin T and S Toludene blue - orthochromatic blue Alcian blue- blue green PAS- pink
Peutz jegher syndrome malignancy risk
2-10% risk for cancer of intestinal tract
Tumors in PJ syndrome
Ca breast Ca lung Ca thyroid Ca cervix Ca Fallopian tube Ca ovary Ca pancreas Ca GB Ca Billiary tract Ca testis
Most common GIT polyp
Hyperplastic polyp
Most common hamartomatous polyp
Juvenile polyposis syndrome
Which is most common ?
FAP
HNPCC
HNPCC
but FAP is more malignant(100%)
Surveillance for FAP and HNPCC
FAP 15 yrs
HNPCC 25 yrs or 10 years earlier of first degree relative developing polyps
Tumors in Cowden syndrome
Breast(50%)
Thyroid
Most common site of peutz jeghers syndrome
Jejunum
Diff btw FAP and HNPCC in GIT malignancies
FAP
Benign Gastric polyp
Gall bladder Ca