Clinical consultation cases Flashcards
(144 cards)
Consultation - what are the symptoms of acromegaly?
Insidious onset of symptoms.
Tumour - headaches, visual field defects.
Excess GH - enlargement of hands and feet, frontal bossing, thickened nose, enlarged tongue.
Hyperprolactinaemia - galactorrhoea, amenorrhoea.
What examination features would you expect to see in acromegaly?
Bitemporal hemianopia
Enlarged hands and feet
Frontal bossing
Macroglossia
Prognathism
Excessive sweating
Given the findings of frontal bossing, macroglossia, headaches what is your preferred diagnosis and differentials?
Acromegaly
Due to: pituitary adenoma, ectopic GH secretion from non-endocrine tumours
DDx:
Pseudo-acromegaly - similar feature but no elevated GH or IGF-1
Hyperinsulinaemia
How would you investigate for acromegaly?
Blood glucose
Bloods - phosphate, calcium, triglycerides - can be raised
IGF-1 screening - sensitive but not specific
Oral glucose tolerance test to confirm raised IGF-1
Pituitary hormone assessment - prolactin, adrenal, thyroid, gonadal hormones
MRI pituitary and hypothalamus
Visual field testing
What is acromegaly?
Disorder caused by excessive secretion of growth hormone causing an overgrowth of organ systems, bones, joints, and soft tissues.
What are the complications of acromegaly?
Hypertension
Diabetes
Obstructive sleep apnoea
Increased colonic polyps and adenocarcinoma of the colon
Hypopituitarism after surgery or radiotherapy
How would you manage a patient with acromegaly?
MDT approach including endocrinologist, geneticist for counselling.
Aim is symptom control from tumour and excessive hormone production.
Trans-sphenoidal surgery.
Can have adjuvant drug treatment after (somatostatin analogue like ocreotide or dopamine agonist like bromocriptine) or radiotherapy.
Consultation - what are the symptoms of ankylosing spondylitis?
Insidious onset of symptoms over months to years, usually presented before the age of 30 years.
Systemic - fever, weight loss, fatigue.
Inflammatory back pain - morning stiffness, improves with physical activity, nonspecific buttock pain from sacoiliitis.
Peripheral joints - enthesitis (Achilles tendonitis and plantar fasciitis), and arthritis.
Extra-articular - uveitis, psoriasis, IBD.
What is the prognosis of acromegaly?
Increased all-cause mortality due to cardiovascular risks but if GH secretion is controlled then life expectancy normalises.
What examination features would you expect to see in ankylosing spondylitis?
Tenderness of the sacroiliac joints.
Limited spinal motion.
Loss of lumbar lordosis, buttock atrophy, exaggerated thoracic kyphosis (question mark posture).
Chest expansion reduced.
Lateral lumbar flexion and forward lumbar flexion is reduced.
Schober’s test - thoracolumbar back examination.
Given the findings of uveitis, long standing back pain with reduced lumbar spine motion what is your preferred diagnosis and differentials?
Ankylosing spondylitis
DDx:
Mechanical back pain
Inflammatory - RA, psoriatic arthritis, reactive arthritis
Degenerative - OA
Infection - TB
Neoplasms
Fractures
Spinal stenosis
What is ankylosing spondylitis?
Chronic spondylarthropathy involving the axial skeleton.
How would you manage a patient with ankylosing spondylitis?
MDT approach with rheumatology specialty input.
Conservative - no cure, physiotherapy and postural training, hydrotherapy.
Medical - NSAIDs for symptoms, additional analgesics, local steroid injection e.g. sacroiliitis, TNF-alpha inhibitors e.g. adalimumab.
Surgical - corrective osteotomy and stabilisation for severe kyphosis.
How would you investigate for ankylosing spondylitis?
Bloods - FBC, inflammatory markers, RhF/ANA/HLA.
X-rays - sacroiliitis or enthesitis, squaring of the vertebral bodies.
MRI.
DEXA for osteoporosis.
What are the complications of ankylosing spondylitis?
Spinal fusion
Spinal fracture
Cauda equina
Hip involvement
What is the prognosis of ankylosing spondylitis?
Variable course but progressive and irreversible
Increased risk of spinal fractures
Consultation - what are the symptoms of Cushing’s disease?
Changes to face - facial fullness/moon facies.
Increased weight - truncal obesity, supraclavicular fat pads, buffalo hump.
Psychological - depression, emotional lability.
Irregular menses.
Thirst, polydipsia, polyuria.
Headaches if ACTH pituitary tumour.
What examination features would you expect to see in Cushing’s disease?
Truncal obesity
Moon facies
Proximal muscle wasting and weakness
Hypertension
Skin - atrophy, purple striae, easy bruising, hirsutism, acne
Oedema
Given the findings of increased weight, hypertension, easy bruising and hirsutism what is your preferred diagnosis and differentials?
Cushing’s syndrome
DDx:
Anxiety/depression
Prolonged alcohol consumption causing Cushingoid appearance
Obesity
Poorly controlled diabetes
What is Cushing’s disease?
Prolonged exposure to elevated glucocorticoids. 80% due to pituitary adenomas (disease rather than syndrome).
How would you investigate for Cushing’s disease?
Bloods - FBC raised WCC, hypokalaemia
24 hour urinary free cortisol - raised
Low-dose dexamethasone suppression test
Midnight cortisol levels - loss of normal diurnal variation
Dexamethasone suppressed corticotropin-releasing hormone - very reliable
Identifying the cause: plasma ACTH
What are the complications of Cushing’s disease?
Metabolic syndrome
Hypertension
Impaired glucose tolerance and diabetes
Obesity
Hyperlipidaemia
Osteoporosis
How would you manage a patient with Cushing’s disease?
MDT approach with specialty endocrinologist input
Medical - metyrapone or ketoconazole to lower cortisol
Surgical - treatment of choice for pituitary or adrenocortical tumours
Pituitary radiotherapy - if persisting post trans-sphenoidal surgery
What is the prognosis of Cushing’s disease?
Mortality now matches age-matched population.