Path Flashcards
which of thes is the commonest carcinoma in the liver?
liver cell
colangiocarcinoma
metastatic adenocarcinoma
metastatic adenocarcinoma.
which of these is not associated with fatty change in the liver? hep b hep c alcohol diabetes
hepatitis B
which of these is not associated with genetic haemochromatosis cirrhosis diabetes kayser-fleisher rings myocardial damae
kayser-fleisher rings
what cell forms outer layer of glomerular filtration barrier?
podocyte.
to nearest 10% - what % of end stage renal disease is dut to AD PKD?
10% (9.4%)
what type of amyloid is formed in pt with multiple myeloma?
AL
commonest cause nephrotic syndrome in children?
minimal change disease
- see child with biopsy, treat them with steroids. if they dont get better then you do a biopsy
antibodies to phospholipase A2 receptors are associated with what form of glomerulonephritis
membranous glomerulonephritis
most oeso and gastric cancers arise from pre-existing adeonmas - T/F?
false
gastric and oeso - mainly flat pathway
coeliac disease on a diet containing gluten following is most likely histological change in due?
- villous atrophy no increase in intra-epithelial lymphocytes
- villous atrophy, increase in intra-epithelial lymphocytes
villous atrophy - increase in intra-epithelial lymphocytes
newborn babies, in contrast to adults, have... 1. higher hb lower WBC smaller RBC same percentae of HbF
higher Hb
WBC high too
RBC large by adult size
complications of sickle cell anaemia that are more common in adults than children include….
- Hand-foot syndrome
- Hyposplenism
- Red cell aplasia
- Splenic sequestration
- Stroke
-hyosplenism.
everything else - infant or child more common
Siblings with sickle cell anaemia present simultaneously with severe anaemia and a low reticulocyte count—likely diagnosis?
- Splenic sequestration
- Parvovirus B19 infection
- Folic acid deficiency
- Haemolytic crisis
- Vitamin B12 deficiency
parvovirus B19.
haemolytic crisis - reticulocytes high.
vit b12 def - uncomon in child.
A 6-year-old Afro-Caribbean boy presents with chest and abdominal pain; Hb is 63 g/l, MCV 85 fl and blood film shows sickle cells—likely diagnosis?
- Sickle cell trait
- Sickle cell anaemia
- Sickle cell/beta thalassaemia
True answer 2
Cant be sickle trait as anaemia and sickle cells
Not 3 as MCV is normal, would be microcytic if both
trait - hb conc normal and no sickle cell in blood film.
sickle cell/ beta thal - not this as MCV is normal
7-year-old Afro-Caribbean boy had abdominal pain and urinary tract symptoms and was given an anti-emetic by his G.P. Three days later he was noted to have yellow eyes and was brought to the hospital
(normal) WBC 10.9 × 109/l, (severe anemia) Hb 58 g/l, (upper limit of normal)MCV 100 fl, (norm)platelet count 275 × 109/l
hep a hep b sickle cell G6PD def heriditary spherocytosis
G6PD deficiency
X linked – therefore mainly males
bite cells
large cells
rbc with little bit of Hb attached to it
irregularly contracted cells
G6PD deficiency
A 1-year-old boy presents with joint bleeding, Hb, WBC and platelet count are normal, aPTT is prolonged, PT is normal, bleeding time normal—most likely diagnosis?
Haemophilia A Haemophilia B Von Willebrand disease Thrombotic thrombocytopenia purpura Has taken mother’s warfarin tablets
haemophilia A
history - b is likely too. but a more common so most likely
53 year old male with weight loss and abdo discomfort
O/E hepatomegaly and spleen 6 cm below costal margin
Hb 98g/l WBC 20x109/l platelets 60x109/l
BCR-ABL transcripts not detected
JAK2 V617F 20%
BM aspirate dry tap
primary myelofibrosis
22 year old male Cyanotic congenital heart disease Hb 210g/l and Haematocrit 60% No splenomegaly Select the most likely Lab test results Serum erythropoietin JAK2 mutation analysis
JAK2 negative
EPO raised
secondary polycythatmia -
which is true?
1Immunosuppressive therapy is only used to treat a minority of patients with aplastic anaemia.
1If treated with immunosuppression, then relapse of Aplastic Anaemia occurs in less than 15% of cases
3The cure rate of AA treated by sibling-related allogeneic stem cell transplantation in a patient under 40 years old is > 70%.
4Severe aplastic anaemia is differentiated from non-severe aplastic anaemia on the basis of the acquired cytogenetic abnormalities in the bone marrow.
5Leucodepletion of cellular blood products is only exceptionally undertaken for patients with aplastic anaemia.
3The cure rate of AA treated by sibling-related allogeneic stem cell transplantation in a patient under 40 years old is > 70%.
which is true?
1Telomeric shortening is a feature of both idiopathic aplastic anaemia and dyskeratosis congenita
2Development of malignancy is an uncommon complication of Fanconi Anaemia
3A single genetic defect has been identified as the underlying cause for Fanconi Anaemia
4Fanconi Anaemia is usually inherited in an autosomal dominant fashion
5Telomeric function is considered to be unimportant in the pathophysiology of Dyskeratosis Congenita.
1Telomeric shortening is a feature of both idiopathic aplastic anaemia and dyskeratosis congenita
Recurrent infections with high neutrophil count on FBC but no abscess formation
1IFN gamma receptor deficiency
2Leukocyte adhesion deficiency
3Chronic granulomatous disease
4Kostmann syndrome
2Leukocyte adhesion deficiency
Recurrent infections with hepatosplenomegaly and abnormal dihydrorhodamine test
1IFN gamma receptor deficiency
2Leukocyte adhesion deficiency
3Chronic granulomatous disease
4Kostmann syndrome
3Chronic granulomatous disease
Recurrent infections with no neutrophils on FBC
1IFN gamma receptor deficiency
2Leukocyte adhesion deficiency
3Chronic granulomatous disease
4Kostmann syndrome
4Kostmann syndrome
Infection with atypical mycobacterium. Normal FBC
1IFN gamma receptor deficiency
2Leukocyte adhesion deficiency
3Chronic granulomatous disease
4Kostmann syndrome
1IFN gamma receptor deficiency
Meningococcus meningitis with family history of sibling dying of same condition aged 6
C7 deficiency
C3 deficiency with presence of a nephritic factor
MBL deficiency
C1q deficiency
C7 deficiency.
may have some reduction for C3 as well.
Membranoproliferative nephritis and abnormal fat distribution
C7 deficiency
C3 deficiency with presence of a nephritic factor
MBL deficiency
C1q deficiency
C3 deficiency with presence of a nephritic factor
probs low C3 - acquired.
Severe childhood onset SLE with normal levels of C3 and C4
C7 deficiency
C3 deficiency with presence of a nephritic factor
MBL deficiency
C1q deficiency
C1q deficiency
probs get lots of skin disease
Recurrent infections when receiving chemotherapy but previously well
C7 deficiency
C3 deficiency with presence of a nephritic factor
MBL deficiency
C1q deficiency
MBL def
Severe recurrent infections from 3 months,CD4 and CD8 T cells absent, NK cells absent, B cell present, Igs low. Normal facial features and cardiac echocardiogram
Bare lymphocyte syndrome type II
X-linked SCID
DiGeorge syndrome
IFN gamma receptor deficiency
X-linked SCID
bare lymphocytes- you can select CD4
digeorge - more widely abnormalities.
Young adult with chronic infection with Mycobacterium marinum
Bare lymphocyte syndrome type II
X-linked SCID
DiGeorge syndrome
IFN gamma receptor deficiency
IFN gamma receptor deficiency
Recurrent infections in childhood, abnormal facial features, congenital heart disease, normal B cells, low T cells, low IgA and IgG
Bare lymphocyte syndrome type II
X-linked SCID
DiGeorge syndrome
IFN gamma receptor deficiency
DiGeorge syndrome
6 month baby with two recent serious bacterial infections. T cells present – but only CD8+ population. B cells present. IgM present but IgG low
Bare lymphocyte syndrome type II
X-linked SCID
DiGeorge syndrome
IFN gamma receptor deficiency
Bare lymphocyte syndrome type II
affects CD4 as type 2. you are not selectign HLA class 2 - so affects cd4
Adult with bronchiectasis, recurrent sinusitis and development of atypical SLE. IgG low. B and T cell normal.
IgA deficiency
Common variable immunodeficiency
Bruton’s X linked hypogammaglobulinaemia
X linked hyper IgM syndrome due to CD40ligand mutation
Common variable immunodeficiency
in adult - have AI disease as well
Recurrent bacterial infections in a child, episode of pneumocystis pneumonia, high IgM, absent IgA and IgG
IgA deficiency
Common variable immunodeficiency
Bruton’s X linked hypogammaglobulinaemia
X linked hyper IgM syndrome due to CD40ligand mutation
X linked hyper IgM syndrome due to CD40ligand mutation
cant do germinal centre reaction - cant get Ig isotype switching
1 year old boy. Recurrent bacterial infections. CD4 and CD8 T cells present. B cells absent, IgG, IgA, IgM absent
IgA deficiency
Common variable immunodeficiency
Bruton’s X linked hypogammaglobulinaemia
X linked hyper IgM syndrome due to CD40ligand mutation
Bruton’s X linked hypogammaglobulinaemia
no b cells
defect in b cell maturation pathway.
it gets stuck at pre- b cells as lack tyrosine kinase gene.
Recurrent respiratory tract infections, absent IgA, normal IgM and IgG
IgA deficiency
Common variable immunodeficiency
Bruton’s X linked hypogammaglobulinaemia
X linked hyper IgM syndrome due to CD40ligand mutation
IgA deficiency
Which one of the following proteins/cytokines is NOT a drug target for current drugs and/or biologics used to treat allergic disorders?
A. IL-13
B. Histamine
C. IL-33
D. IgE
E. IL-5
C. IL-33
A 60 year old female with hypotension and skin rash under generalanaesthesia What is the most appropriate test to diagnose anaphylaxis?
A: Skin prick
B. Drug challenge
C. Blood histamine
D. Serial mast cell tryptase
E. Urine prostaglandin D2
D. Serial mast cell tryptase
A 55 year old man who attends A&E with angioedema involving lips and tongue which has developed over previous hours. He has a history of hypertension and is taking an ACE inhibitor and calcium channel blocker. Clinical examination show a pulse of 75bpm, blood pressure 150/90, respiratory rate of 18/min and oxygen saturation 98% on air. What is the most likely diagnosis?
A. C1 inhibitor deficiency
B. Acute anxiety attack
C. Systemic Mastocytosis
D. Idiopathic Anaphylaxis
E. ACE inhibitor induced angioedema
E. ACE inhibitor induced angioedema
A. C1 inhibitor deficiency - under 40
A 35 year old man with tree pollen hayfever and immediate lip tingling and swelling immediately after eating apples. What is the most likely explanation for IgE hypersensitivity ?
A. IgG4 subclass deficiency
B. Cross reactive IgE sensitisation between hay fever and apple allergens
C. Apple-hay fever immune complex disease
D. Increased Th17 immune response to apple allergen
E. Food aversion disorder
B. Cross reactive IgE sensitisation between hay fever and apple allergens
BCG vaccination
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
B. Reduce risk of TB infection
Bone marrow transplantation
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
D. X linked SCID
dont have NK/ or T cell. may have some B cell.
IFN gamma
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
E. Chronic granulomatous disease
def in NADPH oxidase - failure in oxidative kiling
EBV-specific CD8 T cells
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
A. Post-transplant lymphoproliferative disorder
Human normal immunoglobulin
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
C. X linked hyper IgM syndrome
most important to repleace IgG
Pembrolizumab (anti-PD1)
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
G. Metastatic melanoma
enhance t cell response
risk of AI side effects though
Varicella zoster immunoglobulin
Varicella zoster immunoglobulin
A. Post-transplant lymphoproliferative disorder
B. Reduce risk of TB infection
C. X linked hyper IgM syndrome
D. X linked SCID
E. Chronic granulomatous disease
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
G. Metastatic melanoma
F. Immunosuppressed VZ seronegative individual after chicken pox exposure
Cyclophosphamide
A. Osteoporosis
B. Infertility
C. Progressive multifocal leukoencephalopathy
D. Neutropenia risk high if TPMT low
E. Nephrotoxicity
B. Infertility
Prednisolone
A. Osteoporosis
B. Infertility
C. Progressive multifocal leukoencephalopathy
D. Neutropenia risk high if TPMT low
E. Nephrotoxicity
A. Osteoporosis
Azathioprine
A. Osteoporosis
B. Infertility
C. Progressive multifocal leukoencephalopathy
D. Neutropenia risk high if TPMT low
E. Nephrotoxicity
D. Neutropenia risk high if TPMT low
small number of people have mutations in TPMT gene.
Tacrolimus
A. Osteoporosis
B. Infertility
C. Progressive multifocal leukoencephalopathy
D. Neutropenia risk high if TPMT low
E. Nephrotoxicity
E. Nephrotoxicity
used for transplantation though
Mycophenolate mofetil
A. Osteoporosis
B. Infertility
C. Progressive multifocal leukoencephalopathy
D. Neutropenia risk high if TPMT low
E. Nephrotoxicity
C. Progressive multifocal leukoencephalopathy
Basiliximab (Anti-IL2 receptor)
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
Abatacept (CTLA4-Ig fusion protein)
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
Rituximab (Anti-CD20)
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
CD20 on B cells but not plasma cells
Natalizumab (Anti-a4 integrin)
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
Tocilizumab (Anti-IL6 receptor)
A. Inhibits T cell migration but may only be used in highly active remitting/relapsing MS
B. Binds to CD80 and CD86 on antigen-presenting cells and inhibits T cell activation and is effective in rheumatoid arthritis
C. Depletes B cells and is effective in treatment of B cell lymphomas and rheumatoid arthritis
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
E. Antibody specific for CD25 which inhibits T cell activation and is used to prevent rejection
D. Inhibits function of lymphoid and myeloid cells and used in management of rheumatoid arthritis
IL6 is on lots of cells but can also be soluble so affects a lot.
Psoriasis
A. Treatment options include inhibition of RANK ligand
B. Treatment options include inhibition of IL12/23, TNF alpha and IL17A
C. Treatment options include inhibition of IL6, TNF alpha and depletion of B cells
B. Treatment options include inhibition of IL12/23, TNF alpha and IL17A
Rheumatoid arthritis
A. Treatment options include inhibition of RANK ligand
B. Treatment options include inhibition of IL12/23, TNF alpha and IL17A
C. Treatment options include inhibition of IL6, TNF alpha and depletion of B cells
C. Treatment options include inhibition of IL6, TNF alpha (TOCILIZUMAB ) and depletion of B cells (RITUXIMAB )
Osteoporosis
A. Treatment options include inhibition of RANK ligand
B. Treatment options include inhibition of IL12/23, TNF alpha and IL17A
C. Treatment options include inhibition of IL6, TNF alpha and depletion of B cells
A. Treatment options include inhibition of RANK ligand
Denosumab
18 yr old woman
LLL pneumonia
Unwell
Raised WCC + CRP
Pseudomonas aeruginosa Mycobacterium tuberculosis Legionella pneumophilia Streptococcus pneumoniae Staphylococcus aureus
Streptococcus pneumoniae
56 yr old man
LLL pneumonia
Haemoptysis
Cavitiation on CXR
A) Streptococcus pneumoniae B) Haemophilus influenzae C) Staphylococcus aureus D) Klebsiella pneumoniae E) Any of the above
B) Haemophilus influenzae
staph a - can give cavitating
kleb - cavitating
but he is not very unwell
62 yr old smoker
Confused
Bilateral interstitial change
Hyponatraemic
Moraxella catarrhalis Mycobacterium tuberculosis Legionella pneumophilia Cytomegalovirus (CMV) Staphylococcus aureus
Legionella pneumophilia
as he has recent confusion, smoker and hyponatraemic
so not common pathogen
21 yr old from Ecuador
Cough and weight loss
RUZ shadowing on CXR
Staphylococcus aureus Aspergillus fumigatus Mycobacterium tuberculosis Haemophilus influenzae Pneumocystis jiroveci
TB
not PCP as HIV negative.
not aspergillus as not immunosuppressed.
64 yr old man
Treated for Tb
Bilateral ground-glass shadowing
A) Aspergillus fumigatus B) H1N1 Swine flu C) Mycoplasma pneumoniae D) Cytomegalovirus (CMV) E) Pneumocystis jiroveci
Ground-glass shadowing – PCP.
Recent treatment for TB left him immunosuppressed.
21 yr old man
Previously well
RUZ pneumonia
hypotensive
Amoxycillin Tazocin and vancomycin Co-amoxiclav Cefuroxime and clarithromycin Rifater, isoniazid, pyrazinamide and ethambutol
Treated with cef and clarithromycin
Fluid resuscitation (hypotensive)
Supplemental oxygen
Senior support requested
20 year old man admitted with a 3 week history of fever and headache. Has been travelling in the Middle East. Has drunk unpasteurised milk. Blood culture has grown a Gram negative coccobacillus
Staph. aureus
TB
Brucellosis
Meninigococcal septicaemia
Brucellosis indolent fever
which mec mediates flucloxacillin resistance in s. aureus?
- impaired uptake of abob
- enzymatic inactivation of abob
- alteration of target.
- enganced efflux of abob
- alteration of target.
alternate PBP
no b-lactams work.
which mech is ESBL e.coli resistant to ceftriazone
- impaired uptake of abob
- enzymatic inactivation of abob
- alteration of the target of the abob
- enhanced efflux of the abob
- enzymatic inactivation of abob.
could use carbopenam, as they are stable to ESBL
- How common are HAI in UK?
A ~8%
B ~22%
C ~40%
D ~55%
8
most common syndrome of HAI
A MRSA bloodstream infections B Norovirus gastroenteritis C Pneumococcal pneumonia D Urinary tract infection E Clostridium difficile
E Clostridium difficile then..
D Urinary tract infection
- C. difficile is….?
Gram positive anaerobe Gram negative aerobe Gram variable coccobacillus Gram positive spore-forming anaerobe Other not listed
Gram positive anaerobe
- What 3 groups of factors influence SSI risk?
- Staff, ward category, day of the week
- Host defence, host gender, surgeon gender
- Host defence, wound environment, pathogens
- Virulence of pathogens, antibiotics used, type of suture
- Experience of surgeon closing wound, mask use by theatre staff, music played in theatre
-Host defence, wound environment, pathogens, skill of surgeon in closing wound
Admitted in February 2012, with a subarachnoid and subdural haemorrhage after a fall. Decompressive craniectomy
April 2012. Cranioplasty with titanium plate.
October 2012. Admitted with large subdural collection with midline shift
16.10.12 Abscess evacuation. Titanium plates removed. Underneath there was severe infection with 1-1.5cm thick pus.
gram positive cocci…
yellow on blood agar, haemolytic.
- E.coli
- Enterobacter
- Neisseria meningitides
- MRSA
MRSA
16.10.12. Pus grew MRSA.
Started on iv linezolid
Age- 70yrs old
1994 Right THR; 1998 Revision of acetabular component
X-ray: lysis around distal part of femoral component
Diabetic
- Coagulase negative staphylococci
- Staph. aureus
- E.coli
- Haemophilus influenzae
Samples form 1st stage grew coagulase negative staphylococci in 4 specimens
Patient was started on iv vanc and oral rifampicin.
8 weeks later had 2nd stage . No growth from cultures
A 20 year old woman presents with headache and neck stiffness. What is the causative pathogen?
Gram positive diplococci
alpha haemolysis
strep pneumoniae
A 18 year old man present with headache and neck stiffness. What is the causative pathogen?
gram negative cocci
lots of neutrophils
no haemolysis
meningococus/ neisseria meningitis.
A 65 year old presents with headache and neck stiffness. What is the causative pathogen?
Gram positive rod
listeria monocytogenes
A 45 year old presents with headache and neck stiffness. What is the causative pathogen?
present 2 weeks
Ziehl-Neelsen stain
mycobacterium TB
A 35 year old presents with headache and neck stiffness. What is the causative pathogen?
3 days
MSM
opening pressure 40ml wter (normal 20cm water).
indian ink stains
cryptococcus
Influenza virus infection causes respiratory disease because:
- The host cell receptor (sialic acid) the virus binds to is only expressed in the lung
- The influenza virus can only get into the body through the mouth
- The influenza virus requires activation by host cell proteases that are only expressed in the respiratory tract
- The influenza virus envelope can only fuse with membranes of cells that secrete mucus.
- The influenza virus requires activation by host cell proteases that are only expressed in the respiratory tract
The influenza vaccine given to those at greater risk of complications from flu in the UK is
- A live attenuated virus
- A purified fraction containing HA and NA of an inactivated virus
- A purified HA protein expressed in insect cells
- An immunoglobulin fraction from sera of immune patients.
- A purified fraction containing HA and NA of an inactivated virus
surface proteins cut off and jabbed into people’s arms
A 23 year old male is a close contact of a person with smear positive pulmonary TB, What is his lifetime risk of developing active TB?
0.1%
1%
10%
Don’t worry, be happy!
no other illness in life - 10%
greatest risk first 6 months
Q1: During acute porphyria, the most useful sample to send is…?
Blood CSF Urine Muscle biopsy Stool Skin biopsy
urine
Q2 Cutaneous erythema without blisters or bullae, most likely indicates
Erythropoietic protoporphyria
Congenital erythropoietic porphyria
Acute intermittent porphyria
Erythropoietic protoporphyria
CEP - blistering
AIP - no skin issues
Q3: Hyponatraemia associated with AIP is due to
Dehydration
SIADH
Hypoaldosternism
Raised renin
SIADH
dehydration - hyperna
Q4 Urine samples taken during an acute attack for diagnosis should be… (porphyria)
Taken in an acidified container
Protected from light
Alkalinised
Interpreted with a paired serum sample
Protected from light
send unprotected.
porphyringoens –> porphyrins and break down
30 year galactorrhoea
• A CT scan of her pituitary shows a large (2cm) macroadenoma.
• Her prolactin level comes back at 30,000 (normal <600). She has not had sexual intercourse.
Cushing’s disease Acromegaly Prolactinoma Non-functioning pituitary adenoma Conn’s syndrome
what Ix…?
• Always a prolactinoma if prolactin>6,000
Prolactinoma
Ix.. MRI
Which one is URGENT?
Fludrocortisone replacement Hydrocortisone replacement Thyroxine replacement Oestrogen replacement GH replacement
Hydrocortisone replacement - maintains cell integrity in shock
fludrocortisone - is for adrenal failure.
• 31 year old presents with profound tiredness. • Acutely unwell a few days. • Vomiting • Na: 125, K: 6.5, U 10, Glucose 2.9mM. • FT4 < 5nM TSH > 50mU/l • What does this TSH suggest? A. A TSH producing pituitary adenoma B. Graves disease C. A toxic thyroid nodule D. Primary hypothyroidism E. de Quervain’s (viral) thyroiditis.
Primary hypothyroidism
. Very low T4, make lots of TSH.
Not a tumour – as high T4 and TSH
What is the most frequent brain tumour in adults?
Glioblastoma, IDH wildtype
Meningioma
Metastatic carcinoma
Astrocytoma, IDH mutant
Metastatic carcinoma
2nd = glioblastoma
What is the most frequent brain tumour in children?
Meningioma
Pilocytic astrocytoma
Medulloblastoma
Astrocytoma, IDH mutant
1 - Pilocytic astrocytoma
2 - medulloblastoma
What is the major change
in the last (2016) CNS tumour classification ?
Changes in grading system
Changes in staging system
Incorporation of genetic profile
Addition of new histological types
Incorporation of genetic profile