junior pathologist teaching session 2 2014 slides 1 to 10subarachnoid haemorrhage 1. trauma,...
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Pathology Connoisseur
■ In teams in turn. ■ Consider picture for 2 minutes ■ Write down 5 possible facts about the pathology on
show ,these may include ▪ A classic description of the appearance or definition ▪ Diagnosis ▪ Pathogenesis ▪ Clinical presentation ▪ Related conditions.
■ 1 point if these are in my list ■ Missing items will go on offer to other teams in turn
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Case1
Why did this 56year old man die?
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Case 1
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Case1
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Case 1 Oesophageal varices
1. Dilated and tortuous veins in the oesophagus or stomach
2. Caput medusa/piles/Portal gastropathy 3. Haematemasis 4. Portal hypertension usually with cirrhosis 5. Always take the oesophagus in line with a
history of haematemasis and turn it inside out
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Case 1
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Case 2
Why did this 40 year old man suddenly collapse ?
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Case 2
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Case 2 Acute Aortic dissection
1. Intimal tear, dissection into the media 2. Most 10cm from the aortic valve, type B proximal,
type B distal (beyond subclavian artery) 3. Male 40-60, hypertension or connective tissue
disorder eg Marfans 4. Cystic medial necrosis/Alcian blue 5. Haemopericardium, distal or proximal
propagation, double-barrelled aorta, haemothorax, coronary artery involvment
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Case 3
This elderly man presented as a sudden death but must have had symptoms. What was his problem?
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Case3
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Case 3
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Case 3Cardiac metastasis from uveal melanoma
1. 4 types Callender classification/Spindle A/Spindle B /epithelioid/ Mixed
2. Primary cardiac tumour all rare - atrial myxoma, lipoma, fibromas, papillary fibroelastoma, Rhabdomyoma, Angiosarcoma
3. Uncommon site of metastasis (approx 5%) 4. Melanoma turns up anywhere always do a melanoma
marker( S100 HMB45 or MelanA ) on an unknown primary
5. Angiosarcoma also metastasises to the heart
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Case 3
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Case 4
This 75 year old lady collapsed suddenly while out walking ?
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Case 4
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Case 4Subarachnoid haemorrhage
1. Trauma, extension from intracerebral, rupture berry aneursym, AV malformation,tumour
2. 40% anterior com/34% middle cerebral,20%posterior/mid junction, 4% posterior cerebral
3. Most sporadic/PKD/Ehlos-Danlos/Marfans/NF type1/ coarctation/Hypertension
4. Secondary infarction due to vasospasm. 5. 2% of autopsies, >10mm 50% chance of rupture
per year
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Case 5
■ Why was this 58 year old vagrant loosing weight ?
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Case 5
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Case 5Re-activation TB, Bronchogenic carcinoma
1. Fibrocaseous TB, Mycobacterium, ZN, Primary/Post primary disease
2. Granulomas/Langhans giant cells 3. Bronchiectasis/secondary pneumonia with
collapse 4. Squamous/ Adeno/Small cell/Large cell 5. Haemoptysis a common presentation of
both conditions
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Case 5
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Case 6
This 46 year old man died 3 days after suffering central chest pain, why?
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4cm
Case 6
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Case 6Acute myocarcdial infarction
1. Yellow centre/red rim/ granulating infarct 3-4 days/LAD territory.
2. LVH, LV thickness or heart weight (build/height dependant)
3. Akinetic segment with early aneurysmal dilation and mural thrombus
4. Lines of Zahn/blackcurrent jelly/chicken fat.
5. Distal thrombus.
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Case 6
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Case 7
This elderly farmer was found dead in his barn next to agricultural machinery How did he die?
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Case 7
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Case 7
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Case 7
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Case 7 Penetrating head injury
1. Linear contusion with haemorrhage, no logical vascular pattern therefore most likely to be trauma
2. Entry wound but no exit wound 3. Damage with penetrating injury proportional to mass
and velocity+/- jaw. 4. Methods of damage include, direct contusion or
haemorrhage/cavitation/shock waves and raised intracranial pressure.
5. Complications, CSF fistula, infection,epilepsy
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Case 8
This elderly lady died after a long illness What was her problem ?
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Case 8
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Case 8Emphysema
1. Permanent irreversible dilatation of the air spaces distal to the terminal bronchial without fibrosis
2. COPD,neurophil elastase+- macrophages,α- 1 antitrypsin
3. Pneumothorax, bullae 4. Cenriacinar/panacinar/paraseptal/ irregular 5. Cor pulmonale
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Case 9
This 67 year old lady had severe back pain Why?
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Case 9
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Case 9Multiple bone metastases or possible myeloma
1. Lytic/sclerotic 2. Hypercalcaemia, raised alkaline phosphatase 3. Lung/Breast/Prostate/Kidney/Thyroid 4. Pathological fracture/collapse spinal cord
compression a medical emergency. 5. Leukaemic deposit have a distinct green
appearance
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Case 10
This elderly lady died after a short illness with abdominal pain and rigours?
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Case 10
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Case 10Renal calculus with pyelonephritis
1. Stone at PUJ pyonephrosis with pyelonephritis and perinephric abscess
2. Renal colic/ haematuria/PUO+/- rigours 3. 75% calcium oxalate/15% struvite/9% urate/
1% cystine/oxalosis. 4. 90% visible on X ray/Staghorn 5. Hypercalciuria but no hypercalcaemia, urine pH,
associated infection, urease, hyperparathyroidism