Medical Shorts Mushkies Flashcards
Psoriasis examination?
- Skin
- Nails
- Joints
- Completion
Psoriasis skin findings?
- Symmetrical well defined salmon-pink plaques with a silvery, micaceous scale
- Location = extensors, behind ears, scalp, umbilicus, Koebner
- Skin staining from Rx = coal tar (brown), dithranol (purple)
Psoriasis nail findings?
- Discoloration
- Pitting
- Onycholysis
- Subungual hyperkeratosis
Psoriasis joints findings?
Inflammatory arthropathy
Psoriasis exam completion?
- Inspect common areas and assess joints
2. Auspitz’ sign = pinpoint bleeding on scraping scale
Psoriasis Ddx?
- Bowen’s disease
- Lichen planus
- Dermatitis
Onycholysis Ddx?
- Psoriasis
- Fungal infection
- Trauma
- Thyrotoxicosis
Nail pitting causes?
- Psoriasis
- Fungal infection
- Lichen planus
Koebner phenomenon causes?
- Psoriasis
- Lichen planus
- Viral warts
- Vitiligo
- Sarcoid
4 Psoriasis triggers?
- Smoking
- Stress
- Injury
- Drugs = BB, EtOH
Pathophysiology of psoriasis?
- T4 driven hypersensitivity reaction
2. Hyperkeratosis, parakeratosis, and intra-epidermal microabscesses of Munro
What is parakeratosis?
Nuclei in the stratum corneum
Psoriasis subtypes?
- Plaque
- Guttate
- Pustular = generalised or palmoplantar
- Flexural = not scaly
- Erythroderma
Psoriatic arthritis features?
A Seronegative arthritis that develops in 10-40%, can be:
- Asymmetric oligoarthritis
- Symmetric polyarthritis
- Distal arthritis
- Spondylitis
- Arthritis mutilans
Psoriasis Mx?
- General = MDT (GP, dermatologist), avoid precipitants
- Topical
- Phototherapy
- Systemic
Topical psoriasis Mx?
- Emollients
- Steroids = betamethasone
- Vit D analogues = Calcipotriol
- Coal tar
- Dithranol
Phototherapy psoriasis Mx?
- PUVA
2. Narrow-band UVB
Systemic psoriasis Mx?
- Cytotoxics = ciclosporin, methotrexate
- Retinoids = acetretin
- Biologics = anti-TNF
Dermatitis description?
Erythematous lichenified patches, predominantly on the flexors, with excoriations and painful fissures
Mx of dermatitis?
- General = MDT, avoid precipitants
- Adjuvants = antihistamins, antibiotics
- Topical = emollients, soap substitutes, steroids, tacrolimus
- Systemic = steroids, ciclosporin
- Phototherapy
Cutaneous manifestations of DM?
- Hands = cheiroarthropathy, granuloma annulare, skin pricks
- Injection sites = lipodystrophy
- Shins = necrobiosis lipoidica diabeticorum
- Feet = Charcot’s joints, ulcers
- Other = infections, eruptive tendon xanthomas secondary to hyperlipidaemia
Cheiroarthropathy?
Tight waxy skin that limits finger extension (prayer sign)
Granuloma annulare?
Flesh coloured papules in annular configuration, usually on dorsum of hand, 10% associated with DM
BCC description?
Pearly nodule with rolled, telangiectatic edge, on the face and sun exposed areas
Most common skin cancer?
BCC
Do BCCs metastasise?
No
Mx of BCC?
- Superficial = curettage
2. Deep = surgical excision +/- radiotherapy
SCC description?
Ulcerated lesion with everted edge found in sun exposed areas, alongside Actinic Keratoses and Bowen’s lesions
Actinic keratosis description?
Irregular, crusty, warty lesions
Bowen’s disease description?
Red/brown, scaly plaques
Evolution of SCC?
Actinic keratosis –> Bowen’s disease –> SCC
RFs for SCC?
- Sun exposure
- Immunosuppression
- Genetic = xerodermapigmentosum
- Chronic trauma = Marjolin’s ulcer
Dx of SCC?
Excisional biopsy
Mx of SCC/
Surgery +/- radiotherapy
Malignant melanoma pt characteristics?
- Fair skin with freckles
- Blue eyes
- Light hair
Malignant melanoma desciprtion?
ABCDE
- Asymmetry
- Irregular border
- Non-uniform colour
- Diameter > 6mm
- Evolving/elevation
Additional parts of skin exam?
- Regional lymph nodes
- Rest of skin
- Fundoscopy
- Liver
Glass eye + ascites?
Ocular melanoma
RFs for malignant melanoma?
- Sun exposure, esp. when young
- Low Fitzpatrick skin type
- Lots of common moles
- Age
- FHx
- Immunosuppression
5 types of malignant melanoma?
SLANA
- Superficial spreading = 80%
- Lentigo maligna melanoma = elderly
- Acral lentiginous = blacks, soles, palms
- Nodular = younger, new lesion
- Amelanotic = Delayed Dx
Staging of malignant melanoma?
Breslow Thickness
Malignant melanoma Mx?
- Excision biopsy for staging
- Secondary excision margin depends on stage
- +/- lymphadenectomy
- +/- adjuvant chemotherapy
Neurofibromatosis features?
- Skin
- Eyes
- Extras
Skin fx of NF?
- Cafe au lait spots (>=6, >=15mm diameter)
- Axillary freckling
- Neurofibromas
Neurofibromas description?
Gelatinous violaceous nodules
Eye fx of NF?
- Lisch nodules
2. Optic glioma –> altered acuity
What is a Lisch nodule?
Melanocytic hamartomatas of the iris
Extra fx of NF?
- Back = scoliosis
- Abdomen = RAS + phaeochromocytoma
- Palpable nerves + lymphadenopathy
NF inheritance?
AD
NF1 Chr and prevalence?
Chr17, 1/2500
NF2 Chr and prevalence?
Chr22, 1/35,000
4 complications of NF?
- Sarcomatous change = 5%
- Scoliosis
- Epidemiology
- Learning difficulty = 10%
NF Mx?
- MDT = GP and neurologist
- Excise some neurofibromas
- Genetic complications
- Complications = yearly BP review and cutaneous review, epilepsy rx
DDx of Cafe au Lait Spots?
- NF
- Tuberous Sclerosis
- McCune Albright syndrome
McCune Albright Syndrome?
- Cafe au lait spots
- Polyostotic fibrous dysplasia
- Precocious puberty
How can you classify the features of tuberous sclerosis?
- Cutaneous
- Neurological
- Other
What are the cutaneous features of tuberous sclerosis?
1. Ash leaf spots under UV 2 .Shagreen patch 3. Nose angiofibromas 4. Subungual fibromata 5. Cafe au lait spots
What are the neurological features of tuberous sclerosis?
- Developmental delay
- Epilepsy
- Intellectual impairment
What are the ‘other’ features of tuberous sclerosis? x5
- Retinal hamartomas
- Rhabdomyomas of the heart
- Gliomatous changes in the brain
- Polycystic kidneys
- Lymphoangioleiomyomatosis
Tuberous sclerosis Chr and inheritance?
Chr16, AD
Tuberous sclerosis Ix?
- Skull films = railroad track calcification
- CT/MRI brain = tuberous mass in cortex
- Abdo US = renal cysts
- Eccho = cardiomyopathies
HHT aka?
Osler-Weber Rendu syndrome
HHT examination?
- Multiple telangiectasia on face, lips and buccal mucosa
- Cyanosis = large pulmonary AVMs
- No signs of CREST
DDx for multiple telangiectasias?
- HHT
- CREST
- Chronic liver disease
- Ataxia telangiectasia
3 sites of AVMS in HHT?
Lungs, liver, brain
3 complications of HHT?
- Haemorrhage = epistaxis, GI haemorrhage, haemoptysis, SAH
- High output HF
- Colorectal cancer if SMAD4 mutation
Peutz-Jeghers examination?
Small pigmented macules on lips, oral mucosa, palms and soles
Macules around lips and mouth DDx?
- Peutz-Jeghers
- Carney complex
- McCune-Albright
- Simple freckles
Peutz Jeghers?
AD mutation of STK11 gene on Chr19 characterised by mucocutaneous macules and multiple hamartomatous GI polyps
3 complications of Peutz Jeghers?
- GI hamartomas = intussusception, haemorrhage
- Pancreatic endocrine tumours
- Colorectal cancer
Erythema multiforme description?
Multiple symmetrical targetoid lesions, especially on extensor surfaces of the peripheries
Ddx of lesions with central clearing?
- Erthema multiforme
- Discoid eczema
- Tinea
Causes of erythema multiforme?
- Infections
2. Drugs
Infections that cause erythema multiforme?
- HSV (70%)
2. Mycoplasma
Drugs that cause erythema multiforme?
- NSAIDs
- Phenytoin
- Penicillin
- Sulfonamides
- Allopurinol
Mx of SJS and TEN?
Dexamethasone, IVIG
Erythema nodosum examination?
Tender, blue/red, smooth shiny nodules commonly found on shins
Causes of erythema nodosum?
- Systemic disease = Sarcoidosis, IBD, Behcets
- Infection = Strep, TB
- Drugs = sulphonamides, OCP
Rheumatoid hand examination?
- Look
- Feel = active synovitis (hot swollen painful joints)
- Move = fixed flexion in prayer position, decreased ROM
- Function = precision, power, aids
What causes fibromyalgia?
Theta waves
What to look for in rheumatoid hand examination?
- Skin = joint erythema, palmar erythema
a. Swelling = MCPs and PIPs
b. Muscle wasting = interossei, thenar eminence
c. Deformity
2 .Surgical scars = carpal tunnel release - Wrist
- Elbow = nodules
Rheumatoid hand description?
Symmetrical deforming polyarthropathy
DDx for rheumatoid hands?
- Psoriatic Arthritis
2. Jacoud’s Arthropathy
Jacoud’s arthropathy?
- A chronic non-erosive reversible joint disorder that may occur after repeated bouts of arthritis.
- It is caused by inflammation of the joint capsule and subsequent fibrotic retraction, causing ulnar deviation of the fingers, through MCP subluxation ,
- Joints in the feet, knees and shoulders may also get affected.
- It is commonly associated with SLE and occurs in roughly 5% of all cases
Rheumatoid examination?
- Hands
- Skin = steroid use
- BP and pulse = AF, CVD
- Eye = epi/scleritis, keratoconjunctivitis sicca, anaeima
- Neck = atlantoaxial subluxation
- Heart = Pericardial rub
- Lungs = fibrosis, effusions, rub
- Abdomen = splenomegaly
- Urine dip = nephrotic syndrome/amyloid
3 symptoms of rheumatoid?
- Early morning stiffness
- Pain
- Swelling
RhA DLA?
HLA DR 3/4
RhA Ab?
anti-CCP = 98% specific, 75% sensitive
RhA X ray?
LESD
- Loss of joint space
- Periarticular erosions and osteopenia
- Soft tissue swelling
- Deformity
RhA Mx?
- MDT = GP, physio, OT, rheum, orthopod
- Conservative = physio, OT (aids and splints)
- Medical = Analgesia, Steroids (IM/PO/intra-articular), DMARDS, biologics
- Surgical = carpal tunnel decompression, tendon repairs and transfers, ulna stylectomy, arthroplasty
Extra-articular features of RhA?
aNTI CCP OR RF
- Nodules
- Tenosynovitis e.g. de Quervains
- Immune = vasculitis, amyloidosis, AIHA, Sjogrens
- Cardiac = pericarditis +/- effusion
- Carpal tunnel
- Pulmonary = fibrosis, effusions
- Ophthalmic = episcleritis, scleritis, Sjogrens
- Renal = nephrosis secondary to amyloidosis
- Raynaud’s
- Felty’s
Boutonniere’s deformity?
Rupture of central slip of extensor expansion –> PIPJ prolapse through ‘button-hole’ created by 2 lateral slips
Swan-neck deformity?
Rupture of lateral slips –> PIPJ hyperextension
DMARDS for RhA?
- Methotrexate
- Sulfasalazine
- Hydroxychloroquine
- Penicillamine
- Gold
2 s/e of penicillamine?
- Drug induced lupus
2. Nephrotic syndrome
S/e of gold?
Nephrotic syndrome
4 s/e of sulfasalazine?
- BM suppression
- Skin rashes
- Hepatitis
- Reduced sperm count
Indication for Mx of RhA with biologics?
Severe RhA not responding to DMARDS
3 Anti-TNFa agents?
- Infliximab
- Etanercept
- Adalimumab
B cell depletion agent for RhA?
Rituximab (anti CD20 mAb)
Rheumatoid Factor quick facts?
- Anti-IgG IgM
- Present in 70% with RhA
- Also present in 10% normal people
Sjogrens RhF prevalence?
100%
SLE RhF prevalence?
<=40%
Higher titres of RhA associated with?
- More severe disease
- Erosions
- Extra-articular manifestations
What is seronegative RhA?
RhA in the absence of RhF
What % of RhA are seronegative?
30%
Seronegative RhA features?
Less severe disease and much less likely to have extra-articular features
Cause of atlanto-axial subluxation in RhA?
Rheumatoid tenosynovitis –> weakening of ligaments supporting the top of the cervical spine
Systemic Sclerosis examination?
- Hands = calcinosis, Raynauds (ulceration), sclerodactyly
- Face = beaked nose (nasal skin tethering), microstomia, telangiectasia, coup de sabre
- BP
- Lungs = pulmonary fibrosis
- Heart = pulmonary HTN, heave, raised JVP, loud P2
- Morphea = patches of sclerotic skin
En coup de sabre?
Scar down central forehead found in systemic sclerosis
Morphea?
Form of systemic sclerosis that involves isolated patches of hardened skin on the face, hands, and feet, or anywhere else on the body, with no internal organ involvement
Classification of systemic sclerosis?
- Localised = morphea
2. Systemic = Diffuse (30%) or Limites (70%, incl. CREST)
Limited systemic sclerosis Fx?
- Distribution limited to below elbow, knees and face
- Slow progression = years
- Pulmonary HTN in 15%
- CREST = calcinosis, raynaud’s, oesophageal dysmotility, sclerodactyly, telangiectasia
Diffuse systemic sclerosis?
- Widespread cutaneous and early visceral involvement
2. Rapid progression = months
Limited SS Ab?
Anti-centromere
Diffuse SS Ab?
Anti-scl70 (topoisomerase)
Systemic sclerosis prognosis?
50% 5 year survival
SLE features?
4/11 of SOAP BRAIN MD:
- Serositis (pleuritis, pericarditis)
- Oral Ulcers
- Arthritis
- Photosensitivity
- Blood = pancytopenia
- Renal = proteinuria
- ANA
- Immunologic = dsDNA
- Neuro = psych, seizures
- Malar rash
- Discoid rash
SLE examination?
- Hands = vasculitic lesions (nail fold infarcts), Raynaud’s (digital ulceration), Jacoud’s arthropathy
- Skin = purpura, livedo reticularis
- Face = malar rash, discoid rash, oral ulceration, anaemia
- Eyes = keratoconjunctivitis sicca
- Lungs = pleural rub, effusion, fibrosis
- Cardio = pulmonary HN
- Renal = HTN, dipstick
- Neuro = focal neurology, chorea
Malar rash spares?
Nasolabial folds
Discoid lupus description?
Hyperkeratotic papules
SLE defn?
A multisystem inflammatory disease characterised by a T3 hypersensitivity reaction against circulating immune complexes
SLE M:F?
9F:1M
Races more affected by SLE?
Afro-Caribbeans and Asians
SLE ANA prevalence?
100%
SLE most specific Ab?
dsDNA, although 60% sensitive
SLE Abs?
- ANA
- dsDNA
- anti-cardiolipin
- lupus anticoagulant
SLE activity monitoring?
- Raised ESR
- Low C3, C4
- Raised dsDNA titre
SLE Mx?
- MDT = GP, rheum in specialist SLE clinics
- Mild disease = cutaneous and joints only
- Moderate disease = organ involvement
- Severe disease = AIHA, nephritis, pericarditis, CNS
Mild SLE Mx?
- Topical corticosteroids
- HCQ
- Suncream
Moderate SLE Mx?
- Prednisolone
2. Azathioprine
Severe SLE Mx?
- High dose methylprednisolone
2. Cyclophosphamide
Ankylosing spondylitis defn?
A chronic seronegative spondylarthropathy leading to inflammatory arthritis of the axial skeleton and associated extra-articular features
Extra-articular features of ankylosing spondylitis?
- Anterior uveitis
- Apical lung fibrosis
- Aortitis
- Aortic regurgitation
- AVN block
- Amyloidosis –> glomerulonephritis
- Achilles tendon enthesitis (+other tendons)
Ankylosing spondylitis examination?
- Back
- Movement
- Sacroiliitis
- Extra = ECG, dipstick
Ank spond back exam?
- Question mark posture = thoracic kyphosis and neck hyperextension
- ROM throughout spine
- Protuberant abdomen = diaphragmatic breathing
Ank spond movement?
- Schobers test = <5cm
2. .Chest expansion <5cm (@nipples)
Ank spond sacroiliitis test?
- Direct pressure
2. Sacroiliac stretch = pain on adduction of hip with hip and knee flexed
Ankylosing spondylitis bloods?
- FBC = anaemia
- Raised ESR
- Raised CRP
- HLA B27 +ive in 95%
Ank spond spine imaging features?
- Sacroiliitis = sclerosis, erosions
2. Bamboo spine = vertebral body fusion by marginal syndesmophytes
Ank spond Mx?
- Conservative = exercise and physio
- Medical = NSAIDs, local steroid injections, anti-TNF, bisphosphonates
- Surgery = hip replacement, spinal osteotomy
Marfans syndrome triad?
- Skeletal features
- CVS features
- Eye features
Marfans defn?
Genetic disorder of the connective tissue primarily affecting the eyes, skeleton and cardiovascular system
Marfans examination?
- General = tall and thin, scoliosis
- Hands and arms= arachnodactyly (encircle wrist with hands), wide arm span, flexible joints, pulse (radio-radio delay, collapsing)
- Face = long thin face, upwards lens dislocation, myopia, high arched palate
- Chest and abdomen = pectus excavatum/carinatum, scars from cardiothoracic surgery, stretch mars
- Legs and feet = long legs, flat feet
Marfans DDx?
- MEN2B
2. Homocystinuria
Homocystinuria fx?
- Low IQ
2. Downward lens dislocation
Marfans syndrome cause?
AD mutation in fibrillin-1 gene, a major protein of elastin in connective tissues
Marfans Ix?
- Genetic testing
- Eye exam
- Echo = aortic root dilatation
Marfan’s Mx?
- Screen family members
- Surveillance for complications = MDT regular check ups
- Medical = BB and ACEi can slow aortic root dilatation, pre-emptive aortic root surgery to prevent dissection/rupture
Gout definition?
A mono/oligoarthropathy caused by deposition of monosodium urate crystals in the joints
Hyperuricaemia RFs?
- Male
- Obese
- CKD
- Diuretics
- Purine rich diet = alcohol, meat, seafood
- Increased turnover = leukaemia, lymphoma, psoriasis
Main gout goint?
1st MTP
Gout DDx?
- Pseudogout
- Septic arthritis
- Calcinosis from CREST
Gout Ix?
- Bloods = uric acid, lipids, glucose
- Joint aspiration with polarised microscopy = negatively birefringent needle-shaped crystals
- X-ray = punched out peri-articular erosion
Gout Mx?
- Conservative = weight loss, keep hydrated, diet, avoid fasting, stop offending drugs
- Acute = indomethacin/diclofenac, colchicine, steroids
- Chronic = Allopurinol
Why wait 2 weeks after an acute gout attack to prescribe allopurinol?
Can paradoxically trigger a bout of gout when initiated, so offer NSAID and colchicine cover for 1-3 months initially
Osteoarthritis defn?
Mechanical joint degradation with degeneration of articular cartilage, peri-articular bone remodelling and inflammation
Osteoarthritis RFs?
- Primary = Age, obesity, FHx, female
2. Secondary = pre-existing joint damage, metabolic disease, systemic disease
Pre-existing joint damage that can cause secondary osteoarthritis?
- Trauma
- RA
- Gout
- Pagets
- AVN
- Septic arthritis
- Spondylarthropathy
Metabolic disease that can causes secondary osteoarthritis?
- Chondrocalcinosis
- Haemochromatosis
- Acromegaly
Systemic disease that can cause secondary osteoarthritis?
- Haemophilia (haemarthrosis)
- Neuropathy
- Haemoglobinopathy
Osteoarthritis hand examination?
- Heberden’s
- Bouchard’s
- Squaring of carpometacarpal joint of thumb
- Reduced function
- Disuse atrophy
- Fixed flexion
Osteoarthritic joint description?
- Crepitus
- Pain on movement
- Reduced range of movement
- Bony swellings (osteophytes)
- Joint instability
- Joint effusion
Commonly affected OA joints?
- IP joints of fingers
- CMC joint of thumb
- Knees
- Hips
OA joint pain features w/ regards to pt?
- Worse on exercise and relieved on rest
2. Morning pain <30mins
Radiographic features of OA?
- Loss of joint space
- Osteophytes
- Subchondral cysts
- Subchondral sclerosis
- Deformity
OA Ix?
- X-Ray
2. FBC, CRP/ESR (only useful for ruling out inflammatory and infective causes)
OA Mx?
- Conservative = exercise, physio, weight loss, walking waids
- Analgesia = Paracetamol +/- NSAIDs, codeine, oral NSAIDs for flare ups
- Intra-articular joint injection
- Surgery = joint replacement
Thyrotoxicosis examination?
- General = thin, anxious
- Hands = thyroid acropachy, erythema, sweaty palms, tachycardia, AF
- Arms = proximal myopathy
- Neck = smooth, diffuse goitre +/- bruit
- Eyes = non specific vs. Graves
- Legs = pretibiial myxoedema, proximal myopathy
Non-specific thyrotoxicosis eye signs?
- Lid-lag
2. Lid retraction (increased tone of superior tarsal muscle)
Graves’ eye signs?
- Exophthalmos
- Ophthalmoplegia
- Chemosis
Chemosis defn?
Conjunctival oedema
3 triggers of thyrotoxicosis?
- Child birth
- Stress
- Infection
Goitre defn?
Enlargement and swelling of the thyroid gland
Most common causes of goitre in UK?
- Graves
- Multinodular goitre (actually feels smooth, nodules are an USS Dx)
- Physiological = pregnancy/puberty
Classification of causes of goitre?
- Diffuse
2. Nodular
Causes of diffuse goitre?
- Simple = physiological, iodine deficiency, iatrogenic (e.g. lithium)
- AI = Graves, Hashimoto’s, Riedel’s
- Infective = acute viral thyroiditis
Causes of nodular goitre?
- Multinodular goitre = euthryoid
- Toxic multinodular goitre = hyperthyroid
- Solitary nodule = Cancer, Plummer’s solitary nodule
- Multiple adenomas
Thyrotoxicosis Ix?
- Bloods = FBC, TFTs, Abs (TSH, TPO), Ca, ESR
- Imaging = US, CT, CXR, radionuclide uptake scane
- Needle aspiration
- Biopsy
Graves FBC effect?
May be mild anaemia and neutropenia
Why CXR/CT in goitre?
To check for retrosternal goitre
Goitre complications?
- Of hyper/hypothyoidism
- Compression of surrounding structures
- Cosmetic
Goitre compression complications?
- Trachea = SOB
- RLN = dysphonia
- Oesophagus = dysphagia
- SVC = SVCS
Thyrotoxicosis Mx?
- Medical
- Radioiodine
- Thyroidectomy
- Thyroid eye disease
Medical Mx of thyrotoxicosis?
- Propranolol
2. Carbimazole (titrate OR block & replace)
How long to tx with carbimazole for?
12-18 months
Radioiodine s/e?
- May worsen thyroid eye disease
- Most pts become hypothyroid
- C/I in pregnancy and those around children
Thyroidectomy s/e?
- Early = haematoma. RLNP, thyroid storm, hypocalcaemia
2. Late = hypothyroidism, hypoparathyroidism, keloid scar
Thyroid eye disease Mx?
- Stop smoking
- Symptomatic = artificial tears, dark glasses, elevate bed
- Severe = high dose steroids, surgical decompression
Hypothyroidism exam?
- General = overweight, depressed, gruff voice
- Hands = dry skin, bradycardia, cool, slow reflexes, proximal myopathy
- Face = coarse, puffy, peaches and cream complexion, loss of lateral eyebrows, xanthelasma, thin hair
- Neck = goitre, thyroidectomy scar
3 AI diseases associated with thyroid disease?
- Addisons
- T1DM
- Vitiligo
Hypothyroidism Mx?
Thyroxine
Hypothyroidism Ddx?
- Primary
2. Secondary = hypopituitarism (v. rare)
Primary causes of hypothyroidism?
- AI = primary atrophic thyroiditis, Hashimoto’s thyroiditis
- Iatrogenic = drugs, radioiodine, surgery
- Iodine deficiency = e.g. derbyshire neck
- Genetic = thyroid agenesis
Hyperthyroidism Ddx?
- High uptake
2. Low uptake
High uptake causes of hyperthyroidism?
- Graves’
- Toxic adenoma
- Toxic multinodular goitre
Low uptake causes of hyperthyroidism?
- Subacute thyroiditis
- Postpartum thyroiditis
- Ectopic/exogenous
Acromegaly definition?
Disorder resulting from excess release of growth hormone after the growth plates have fused, >99% due to a GH secreting pituitary macroadenoma
Clinical features of acromegaly?
- Pituitary enlargement symptoms = hypopituitarism, bitemporal hemianopia, headache
- Active acromegaly signs = excessive sweating, HTN
- Excessive soft tissue growth
Excessive soft tissue growth in acromegaly?
- Hands = spade like, tight rings, sweaty, carpal tunnel syndrome (thenar wasting and loss of sensation)
- Arms = HTN
- Face = coarsening of features, prominent supra-orbital ridge, large nose, big ears, macroglossia, widely spaced teeth, prognathism
- Eyes = bitemporal hemianopia
- Neck = goitre and JVP
- Armpits = acanthosis nigricans
- Abdomen = organomegaly
- Proximal myopathy = stand up
- Previous photographs
Causes of macroglossia?
- Acromegaly
- Amyloidosis
- Hypothyroidism
- Down’s syndrome
Causes of acanthosis nigricans?
- Endo = metabolic syndrome, DM, Cushings, Acromegaly
2. Malignancy = gastric, pancreatic
Acromegaly Ix?
- Bedside = glycosuria, LVH
- Bloods = raised IGF1, OGTT, PFTs and serum prolactin
- CXR = cardiomegaly
- MRI = pituitary adenoma
- Other = visual perimetry
Acromegaly complications?
- Impaired GT and DM
- Cardiomyopathy and CVD (leading cause of death)
- Colorectal cancer (colonoscopy at 50 years)
Acromegaly Mx?
- General = MDT, CV risk
- 1st line = trans-sphenoidal resection
- 2nd line = medical = SS analogues (octreotide), GH antagonist (pegvisomant), Da agonist (cabergoline)
- 3rd line = radiotherapy
Acromegaly follow up?
Yearly
- Bloods = GH, PRL
- Visual fields
- ECG
- MRI head
Cushings syndrome defn?
A metabolic disorder characterised by typical signs and symptoms caused by chronic glucocorticoid excess
Cushings disease defn/
ACTH-producing pituitary tumour causing Cushings Syndrome
Nelsons syndrome?
Symptoms resulting from rapid enlargement of a pre-existing pituitary tumour after a bilateral adrenelectomy
Causes of Cushing’s syndrome classification?
- ACTH-dependent
2. ACTH-independent
ACTH dependent causes of Cushing’s syndrome?
- Cushing’s disease
2. Ectopic ACTH (SCLC most common)
ACTH independent causes of Cushing’s syndrome?
- Iatrogenic = most common
- Adrenal adenoma/carcinoma
- Adrenal hyperplasia
- Carney complex
Cushing’s examination?
- Hands = thin skin, RA
- Arms = BP
- Face = moon face, acne, hirsutism
- Eyes = bitemporal hemianopia
- Shoulders and back = buffalo hump, kyphosis, crush fracture –> back pain
- Abdomen = central obesity, purple striae
- Stand = proximal myopathy
4 Cushings symptoms for pts?
- Weight gain
- Bruising
- Headached
- Visual disturbance
Cushings Ix classification?
- Confirm syndrome
2. Localise lesion
Cushings confirm syndrome Ix?
- 24-hour urinary cortisol
2. Low dose dexamethasone suppression test
Cushings localise lesion Ix?
- Plasma ACTH
- Low ACTH –> CT adrenals
- High ACTH –> High dose dexamethasone suppression test
- Inferior petrosal sinus sampling
- MRI pituitary fossa
Cushings Mx?
- Complications = BP, DM, bisphosphonates
2. Cause
Ectopic ACTH Mx?
- Tumour excision
2. Metyrapone (inhibits cortisol synthesis)
Addisons disease signs?
- Medic alert bracelet
- Hyperpigmentation = palmar creases, scars, buccal mucosa
- Postural hypotension
Addisons disease Ab?
21-hydroxylase (+ive in 80% with AI disease)
Addisons disease Dx?
- 8am cortisol = low
- 8am ACTH = high
- SynACTHen test = no increase in cortisol
Addisons acute Mx?
- 0.9% NS IV
- 100mg hydrocortisone IV
- Rx cause e.g. infection
Addisons chronic Mx?
- Replace = hydrocortisone and fludrocortisone
2. Education and advice = dont stop steroids suddenly, increase dose during illness/stress, bracelet, carry steroid card
Steroids s/e?
MEM ICE
- MSK = proximal myopathy, osteoporosis
- Endocrine = HPA suppression, obesity, DM
- Metabolic = Na and fluid retention, HTN, hypokalaemia
- Immune = infection
- CNA = depression, psychosis
- Cataracts, glaucoma
Steroids advice to pt?
- Dont stop suddenly
- Consult doctor when unwell
- Carry steroid card/alert bracelet
- Avoid OTC s.g. NSAIDs
What is hemiballismus?
- Involuntary flinging motions of the extremities
- Continuous and random
- Isolated to one side of the body
Cause of hemiballismus?
Damage to the subthalamic nucleus
- Usually a small infarct in diabetics
- MS
- Any CNS pathology essentially
Mx of hemiballismus?
- Often resolves spontaneously
2. Haloperidol
Benign essential tremor features?
- Action/postural tremor = worse with movement
- Exacerbating factors = anxiety/caffeine
- Relieving factors = alcohol/sleep
Mx of BET?
- Alcohol
- Propranolol
- Primidone = anti-epileptic
DDx of solitary thyroid nodule?
- Dominant nodule of multinodular goitre
- Adenoma
- Malignancy = PFMA
- Cyst