1.7.2013(pathology) 54 Flashcards
Schilling test stages
- Radioactive B12
- along with IF
- after antibiotic treatment
- after giving pancreatic enzymes
False positive D Xylose test
Bacterial overgrowth Diarrhoea Delayed gastric emptying Renal insufficiency Vomiting Ascitis/pleural effusion
Tests in steatorhea
D Xylose
Small intestinal biopsy
D Xylose test in Chronic pancreatitis Bacterial overgrowth Celiac disease Illeal disease Intestinal lymphangiectasia
Normal in all except celiac disease
Schilling test in celiac disease
Normal
Celiac disease affects
Duodenum
Proximal jejunum
Intestinal stagnant loop syndromes
Jejunal diverticulosis
Stricture
Ileocolic fistula
Anatomic blind loop
Inflammatory causes of folate deficiency
TB
psoriasis
Exfoliative dermatitis
Malaria
Excessive urinary loss of folate is seen in
CCF
active liver disease
Anti folate drugs
Nitrofurantoin
Tetracycline
Non neoplastic causes of elevated CEA
Smoking
IBD
pancreatitis
Hepatitis
LDH is tumor marker for
Ewing
Lymphoma
CA 19-9 is elevated in
Colon Ca
Pancreatic Ca
Breast Ca
MHC which is a component of hormone receptor
MHC1
Medium to select for hybridoma cells
HAT medium Hypoxanthine Aminopterin Thymidine HAT medium inhibits denovo purine synthesis pathway
Characteristic of myeloma cells
Immortal
HGPRTase -ve
Hybridoma technique was developed by
Kohler and milstein
Cell fusion in hybridoma technique is brought about by
PEG
Popcorn classification
Pulmonary hamartoma
Mediastinal lymph node in Acute histoplasmosis
Degenerated fibroadenoma
Most common site of pulmonary hamartoma
Peripheral
Most common benign tumor of lung
Pulmonary hamartoma
Specific CT finding in pulmonary hamartoma
Fat and calcification
p14 ARF increases p53 activity by
Inhibiting MDM2
Most common type of Hodgkin lymphoma
Nodular
Nodular Hodgkin lymphoma cells,CD
CD15 and CD30 +ve
CD45 and CD20 -ve
Nodular sclerosis is common in
Both male and female
Most EBV +ve Hodgkin
Lymphocyte depleted (poor prognosis)
Reed sternberg cells in lymphocyte depleted type
Reticular
Reed sternberg cells in lymphocyte predominant type
L and H/popcorn cells
Hodgkin subtype with CD15 and CD30 negativity
Lymphocyte predominance(it is CD20+ve)
Cancers associated with asbestosis
Ca lung and bronchus(SCC or adenocarcinoma)
Pleural or peritoneal mesothelioma
Colon cancer
Laryngeal carcinoma
Inherited Hypercoagulable states
DYSFIBRINOGENEMIA Leiden Prothrombin mutation Protein C and S deficiency Antithrombin III deficiency
Conditions associated with low complement levels
Idiopathic proliferative glomerulonephritis
Cryoglobulinemia
Shunt nephritis
Atheroembolic renal disease
Glomerulonephritis with normal complement
HSP
IgA nephropathy
Celiac disease biopsy appearance
Flat
Villous atrophy,crypt hyperplasia
Overall mucosal thickness remains the same
SLE lesions in kidney
Class 1: minimal mesangial Class 2: mesangial proliferative Class 3: focal proliferative Class 4:diffuse proliferative(wire loop) Class 5: membranous(sub epithelial,all others have Subendothelial deposits) Class 6: sclerotic nephritis
Type 2 RPGN
PSGN IgA nephropathy HSP SLE MPGN cryoglobulinemia
MHC 1 is associated with which hormone receptor
LH
Granulovacuolar degeneration is seen in
Alzheimer’s disease
Good prognostic factor in neuroblastoma,CD
CD44
DNA ploidy,poor prognosis in neuroblastoma
Diploid
Near diploid
Near tetraploid
Serum biochemical markers of neuroblastoma
LDH
ferritin
Poor prognosis if elevated
Amyloid deposition in FMF
AA
Most common cause of secondary amyloidosis
Rheumatoid arthritis
Tumors associated with secondary amyloidosis
Renal cell carcinoma
Hodgkin
Heat test for bence jones protein
Precipitate at 50-60 C
Redissolve at 100 C
Paragangliomas are chromaffin
Positive
TLR 4 binds to
LPS(Gram negative bacteria)
HSF60(chlamydia)
TLR that binds to flagellin
TLR 5
TLR 6 binds to
CpG DNA
TLR3 binds to
Double stranded RNA(viruses)
TLR 2 binds to
Lipoproteins Peptidoglycan(GPB) LPS of leptospira Lipoarabinomannan and phosphatidyl inositol dimannoside of mycobacteria GPI anchor(trypanosomes) Zymosan(fungi)
TLR belongs to _____ family
IL-1 receptor family
Basophilic Dyskeratosis is seen in
Darier disease
Dyskeratosis
Abnormal keratinisation occurring prematurely in cells below stratum granulosum layer
Chondrocalcinosis
Calcium pyrophosphate deposition disease Acromegaly Hyperparathyroidism Alkaptonuria Gout Wilson disease
Intervertebral disc calcification,causes
Alkaptonuria Gout CPPD DISH AS degenerative spondylosis Hemochromatosis
Cause of metastatic calcification
Elevated Ca phosphate product(more than 60-70)
With normal ca phosphate product but after renal transplant
PSGN develops how many weeks after pharyngitis and impetigo
1-3wks after pharyngitis
2-6wks after impetigo
Nephritogenic streptococcal strains
Impetigo
2,47,49,55,57,60
Pharyngitis
1,2,3,4,12,25,49
Causes of decreased osmotic fragility
Sickle cell Anemia Thalassemia Iron deficiency Anemia Reticulocytosis Post splenectomy
Causes of Anemia in CRF
Decreased erythropoietin Decreased RBC survival Bleeding diathesis Iron deficiency Hyperparathyroidism/bone marrow fibrosis Chronic inflammation Folate or B12 deficiency Hemoglobinopathy Comorbid conditions
Megaloblastic Anemia refractory to folate/B12 therapy
Orotic aciduria
Thiamine responsive
Anti metabolites
Myelodysplasia/some cases of AML
Worms causing iron deficiency Anemia
Hook worm
Shistosoma
Trichuris
Changes in primary TB
Ghon complex Pleural effusion Calcification Cavitation Fibrosis Milliary
Common causes of malignant pleural effusion
Lung
Breast
Lymphoma
Drug induced pleural effucsion
Methysergide
Procarbazine
BAND
Causes of transudate pleural effusion
CCF nephrotic syndrome Cirrhosis Pulmonary embolism Peritoneal dialysis SVC obstruction Myxedema Urinothorax
Side of pleural effusion in CCF
Right
Same in cirrhosis