Long Case Differentials/management Flashcards
Differentials for a neck lump
- branchial cyst
- salivary gland enlargmeent
- thyroid (goitre, multinodular goitre, graves, hashimotos, adenoma, carcinoma, subacute thyroiditis)
- subclavian aneurysm
- lymph node
symptoms of thyroid malignancy
dysphonia
stridor
dysphagia
cough
haemoptysis
weight loss
risk factors to ask for with neck lump?
- family hx: head and neck cancer
- family hx: thyroid disease
- smoking
- alcohol
- sick contacts: EBV etc.
- Cat scratch
- radiation to neck - malignancy
- other autoimmune disorders - points towards hashimotos
Investigations of thyroid lump
- physical exam - signs of hypo/hyperthyroidism, movement of thyroid on swallowing, movement of thyroid when tongue out
- bloods- TFTs (T3, T4, TPO, TSH, calcitonin), blood film - for EBV, FBC for infection
- bedside - ultrasound of thyroid, ECG for arrhythmias
- Imaging - CT head and neck for malignancy, radionucelotide scan (hot or cold)
- special tests - Fine needle biopsy - malignancy
management of neck lump
Cysts = surgical excision
EBV = supportive
hypothyroid = Levothyroxine
Hyperthyroid = carbamazepine or PTU, beta blocker or thyroidectomy
Differentials for Polyuria
- diabetes mellitus (T1 or T2)
- diuretics (alcohol, caffeine, medication, lithium)
- heart failure
- hypercalcaemia
- hperthyroid
- hypokalaemia
- Diabetes Insipidus
Polyuria specific questions to ask?
- blood in urine = UTI or stones
- fatigue/weight loss = DM
- recurrent infections = DM
- dribbling = BPH, prolapse
- Nocturia = BPH
- Increased thirst = DM/DI
- vasculitis?? = renal failure
- hypertension = Renal failure
- autoimmune conditions= Type 1 DM
- lithium prescription = DI
What investigations for polyuria?
- Physical exam: PVD signs (T2DM) or peripheral neuropathy, fruity breath (T1DM), signs of dehydration (T2DM), prostate exam
- Bloods: aldosterone levels (DI), Plasma glucose (DM), sodium levels,
- U&E: sodium - DI
- Creatinine = renal failure
- TFTs = hyperthyroidism
- urine dipstick = UTI and osmolality
- Imaging = MRI pituitary - cranial DI
- special tests = water deprivation test
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Management of polyuria
- UTI = antibiotics
- Cranial DI = removal of tumour, or ADH replacement
- nephrogenic DI = carbamazepine
- primary polydipsia = refer to psychiatry and fluid restriction
- DKA = IV fluids, Insulin therapy
- DMT1 = insulin
- DMT2 = diet, exercise, metformin + second line agent like gliclazide
differentials for haematuria/flank pain
- “SWITCH GPS”
- stones
- wegener’s vasculitis
- infection
- trauma/tumour
- cryoglobulinaemia
- HUS
- glomerulonephritis
- PCKD
- sickle cell/SLE
specific questions for haematuria and flank pain?
- colour of urine (orange could be rifampicin, cloudy could indicate UTI)
- colicky pain?
- rigors/palpitations = stones or UTI
- fever
- history of UTIs
- dribbling = BPH = retention
- history of kidney disorders
- lump in flank?
- recent rash? SLE or HUS
- hypercoagulable state?
- Cough/haemoptysis = wegeners or goodpasture
- facial swelling = nephritic syndrome
- oedema/weight gain = nephritic syndrome
- recent URTI = IgA nephropathy
Investigations for polyuria
Physical Exam: ballot kidneys for pain, cacexia (malignancy), dehydration, temperature, prostate exam (retention or mets)
Bloods: CRP/ESR (UTI, infection), FBC (WCC or anaemia), U&E (renal function), Calcium (Renal function), PSA (prostate cancer), Lactate (UTI/sepsis)
Bedside: urine dipstick ( haematuria and UTI), midstream culture = UTI, urine cytology (bladder cancer), renal ultrasound (stones, hydronephrosis, tumour)
Imaging: plain film X ray (stones), non contrast CT (stones, tumour), cystoscopy (bladder cancer), CT tap (staging).
Special Tests: transurethral biopsy (transitional cell cancer)
management flank pain and haematuria
- stones = conservative (increase water), medical (anti-emetic, analgesia, alpha blocker), surgical (sock wave therapy, endoscopic stone retrival)
- neoplasm = medical (interferon, interleukin), surgical (nephrectomy partial or radial)
- Lower UTI = increase hydration and give antibiotics according to culture
- upper UTI = increase hydration, ciprofloxin 7 days
- nephritic syndrome = steroids + cyclophosphamide, renal transplant
differentials for a breast lump
- Most common
- fibrocystic change
- fibroadenoma
- cyst
- carcinoma -
- DCIS
- LCIS
- Invasive ductal (most)
- invasive lobular
- medullary
- tubular
- less common
- fat necrosis
- mastitis
- abscess
- galactocele
- phyllodes tumour
- sarcoma
- lipoma
what questions to ask about a breast lump?
- painful? Movable?
- ragged or smooth edges?
- skin changes
- changes to nipple
- discharge - colour or blood
- back pain
- fever?
- History or breast cancer
- recent trauma?
- weight loss?
- age at menarche and menopasue
- HRT use
- ovarian cancer hx
Investigations for a breast lump?
- physical exam= symmetry, skin changes, nipple changes
- bloods = FBC (infection), U&E (renal function baseline), LFT (mets), calcium (mets)
- bedside = ultrasound of breast (if over 35 in addition to mammogram), ultrasound of liver (staging/liver mets)
- imaging = mammogram, MRI breast, CT breast (Staging), bone scan for mets
- Special tests = FNA, needle core biopsy (receptor status, invasiv vs. in situ),
Management of breast lump
- Neoplasm (mostly DCIS)- dependent on receptor positive + chemotherapy + surgical excision (breast conserving or mastectomy + sentinel node)
- fibroadenoma = excision if symptomatic or >3cm
- cysts = aspirate if symptomatic
- reassurance, proper bra fitting, primrose oil help with breast pain,
- Breast infections/mastitis = antibiotics and aspiration of abscess if present
Differentials for a blackout event
- Non-syncopal = intoxication, metabolic, psychogenic, narcolepsy, epilepsy
- syncope= vasovagal, cardiac, orthostatic hypotension, cerebrovascular perfusion, arrhythmia
- epilepsy = lesion cause or non-lesion epilepsy
what questions should you ask about a blackout event?
- ask if someone witnessed the event?
- did you feel it coming on? Triggered? what was happening immediately before the episode
- recent head trauma?
- during episode: length of it, loss of continence, tongue biting, patterened movements
- after episode: spontaenous recovery? (non-metabolic), tiredness (epilepsy), confusion?
- risk factors: diabetes, epilepsy, anaemia, alcohol use, arrhythmia, sudden death of a relative, insulin therapy use? medications? blood thinners? beta blockers?
Investigations for a blackout event?
- physical exam: carotid bruit? (stroke), BP standing and lying (orthostatic hypotension), focal neuro signs (stroke)
- bloods: eletrolytes (seizure) , FBC (anaemia), U&E (dehydration or hyponatraemia), tox screen (intoxication), TFT (arrhythmia), aldosterone levels (BP)
- bedside: ECG (heart block), glucometer (hypoglycaemia)
- imaging: CT brain (bleed), Echo, Carotid doppler
- Special tests: tild test (ANS failure or orthostatic hypotension), holder monider for cardiogenic syncope, EEG for signs of epilepsy
Management of blackout event
- Cardiogenic
- sleep, diet, exercise limit stress
- antiarrhythmic medication if appropriate
- ICD if appropriate or Valve replacement
- Orthostatic hypotension
- increase fluid/salt intake
- avoid alcohol
- exercise
- take time when standing up
- stope medications that potentiate (diuretics etc.)
- Vasovagal
- increase fluid and salt
- SSRI
- Epilepsy
- avoid alcohol, stress, sleep deprivation
- avoid triggers
- need to bae 6 months seizure free to drive
- medical: sodium valproate , carbamazepine
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Differentials of headache
- sinister cause = VIVID
- vascular - subarachnoid haemorrhage
- infective- meningitis
- Vision - Giant cell arteritis
- ICP - oedema, hydrocephalus
- Dissection of carotids
- Non-sinister cause
- tension headache
- micraine
- sinusitis
- TMJ pain
- trigeminal neuralgia
- cluster headache
what specific questions should you ask about headaches?
Red flags
- decreased consciousness
- head injury
- sudden onset
- seizures
- focal deficit
- scalp tenderness
- worse when lying down or in the mornning
- neck pain
- photophobia
- past malignancy
- impact on life
Investigations for a headache?
- physical exam: eye movements, pupillary response, focal neuro signs, fundoscopy for papiloedema
- bloods: CRP for infection and Giant cell arteritis , FBC for infection, blood culture for meningitis
- bedside: lumbar puncture - meningitis, blood, opening pressure etc.
- imaging: CT brain - for bleed or space ocupying lesion, MRI
- Special tests: EEG