Station 1: Abdominal Flashcards
Causes of liver cirrhosis and pulmonary disease
Cystic fibrosis
Alpha 1 antitrypsin deficiency
Causes of clubbing
ABDOMINAL: liver cirrhosis, primary biliary cirrhosis, inflammatory bowel disease
RESP: CF, bronchiectasis, lung cancer, fibrosis, abscess, empyema
CARDIO: infective endocarditis, congenital heart disease (cyanotic), atrial myxoma
OTHER: idiopathic, thyroid acropachy
Clinical features of primary biliary cirrhosis
Symptoms:
- fatigue
- pruritis
- jaundice
usually in middle aged women with other autoimmune conditions e.g. vitiligo, coeliacs, sjogren’s, RA, thyroid disease
Bloods:
anti-mitochondrial antibodies
IgM
raised ALP, bilirubin
Management of primary biliary corrhosis
Ursodeoxycholic acid
Cholestyramine as a bile acid sequestrant
Avoid other hepatotoxic agents
Liver transplantation - but 30% recurrence risk
Examination findings in haemochromatois
Slate grey discolouration of skin
Bronze skin
Signs of arthropathy and pseudogout
Gynaecomastia
Decreased body hair
Abdominal bruising consistent with insulin injections
Peripheral stigmata of chronic liver disease
Treatment of haemochromatosis
Venesection
Iron chelating agents, either as regular infusions or oral agents
Genetic counselling and testing
Causes of splenomegaly
MILD (tip <4cm) myeloproliferative disorders lymphoproliferative disorders portal hypertension infections e.g. EBV, endocarditis, hepatitis haemolytic anaemia Felty's syndrome
MODERATE (tip 4-8cm)
myeloproliferative disorders
lymphoproliferative disorders
MASSIVE (tip >8cm) BIG 3 1) CML 2) myelofibrosis 3) malaria OTHERS myeloproliferative disorders lymphoproliferative disorders tropical diseases e.g. leishmanaiasis infiltrative disorders e.g. amyloidosis
Investigation of splenomegaly
Dependent on cause
general:
full blood count
blood film
ultrasound abdomen
specific: thick and thin films for malaria viral serology bone marrow aspirate lymph node biopsy imaging e.g. CT NCAP
Indications for splenectomy
- Rupture
2. Haematological cause e.g. ITP or spherocytosis
Preparation for splenectomy
Vaccination against encapsulated bacteria - pneumococcus, meningococcus, haemophilus
Lifelong penicillin
Medicalert bracelet
Causes of BILATERAL renal enlargement
Polycystic kidney disease Bilateral renal cell carcinomas Bilateral hydronephrosis Tuberous sclerosis (cysts + AMLs) Amyloidosis
Causes of UNILATERAL renal enlargement
Polycystic kidney disease (other kidney removed - scar!)
Renal cell carcinoma
Renal cyst
Hydronephrosis
Tell me about polycystic kidney disease
Autosomal dominant Multiple renal cysts, destruction of normal renal parencyma Progressive renal impairment and accounts for ~5% of cases of ESRF in UK usually by the age of 40-60 years Chromosomes 16 (ADPKD1) and 4 (ADPKD2)
Presentation with hypertension, haematuria, abdominal pain or distension, recurrent UTIs
Associated with hepatic cysts, intracranial berry aneurysms (leading to SAH), mitral valve prolapse
Treatment:
- manage risk factors, blood pressure etc
- nephrectomy for recurrent infections/bleeding cysts/size
- RRT if required
- genetic counselling
Causes of abdominal distension
Fat Fluid Foetus Flatus Faeces
Other: renal enlargement, uterine/ovarian masses, urinary retention
Causes of hepatomegaly
- Generalised liver inflammation/hepatitis/infiltration
- infections e.g. hep A/B/C/E
- lymphoproliferative disease
- PBC, haemachromatosis, sarcoidosis, amyloidosis
- Budd Chiari - Liver lesion (focal)
- metastasis
- HCC
- hydatid cyst
- amoebic abscess - CCF
Other: Reidel’s lobe (anatomical variant large right lobe
Causes of hepatosplenomegaly
Infective e.g. EBV, CMV, tropical infections - Bricellosis, toxoplasmosis, HIV with PGL
Infiltrative e.g. amyloid, sarcoid, lymphoproliferative conditions - CLL, CML, lymphoma, myeloproliferative diseases
Portal hypertension
Haemolytic conditions e.g. hereditary spherocytosis, sickle cell, thalassaemia
Tell me about polycythaemia
Categorised into primary and secondary
Secondary most common:
- response to chronic hypoxia e.g. smokers, COPD, OSA, cyanotic heart disease
- EPO production e.g. renal tumours, APCKD
- dehydration, diuretics
- cobalt poisoning
Primary due to increased bone marrow activity
- JAK2 positive
- secondary causes excluded
- microcytic, iron deficient
Clincal features facial plethora pruritis worse after a hot shower or bath engorged conjunctival veins dilated retinal veins splenomegaly hypertension
Complications
- arterial or venous thromboses (in Budd Chiari - think about PV)
- peptic ulceration
- leukaemic transformation
Management
- control risk factors
- low dose aspirin
- hydroxycarbamide
- venesection
- chemotherapy options if not controlled
- treat pruritis: avoid hot showers/baths, antihistamines, SSRIs
Complications of renal transplant
- uraemia - failed transplant (fistula use marks)
- ciclosporin treatment - gum hypertrophy, hypertrichosis (excessive hair)
- infections from immunosuppression
- renal tenderness
- renal bruit (renal artery stenosis)
How to examine to see if a renal graft is functioning
- Examination
- features of uraemia - pericardial/pleural rub, encephalopathic, grey appearance - Bloods
- worsening renal function - Bedside tests
- urine protein, diopstick - Urine volume in 24 hours
- +/- biopsy (referral to specialists
Complications of renal transplant
- HYPERACUTE
- graft rejection - ACUTE
- graft rejection
- opportunistic infections - CHRONIC
- graft rejection
- opportunistic infections
- drug side effects e.g. gum hypertrophy, skin malignancies, lymphomas
- hypertension, ischaemic heart disease
- renal artery stenosis
- disease recurrence
Causes of gum hypertrophy
- calcineurin inhibitors e.g. tac, ciclo
- phenytoin
- leukaemia
- scurvy
- nifedipine
Mechanism of action of ciclosporin
Calcineurin inhibition
Decreased IL2 production
Drugs used for immunosuppression post renal transplant
- Ciclosporin
- calcineurin inhibitor
- nephrotoxic
- hyperlipidaemia, hyperglycaemia, hypertension - Tacrolimus
- calcineurin inhibitor - Azathioprine
- bone marrow suppression
- hepatotoxicity
- test for TPMT activity - Steroids