MED GEMS HISTO Flashcards
What liver enzyme may also be found in the heart and may rise in acute myocardial infarction?
Aspartate aminotransferase
A 50 year old perimenopausal woman is admitted to A+E after a night out. She drank a bottle of Sauvignon Blanc and 8 shots of sambuca. She is known to have gallstones. A fever of 38.3C is recorded in the ambulance.
Her GCS is 13. She reports pain in her right upper quadrant which is reproducible on palpation
Blood tests show ALT 1.5x upper limit of normal, AST 1.2x upper limit of normal, ALP 2x upper limit of normal and bilirubin in the normal range.
What is the likely cause of her hepatic derangement?
Cholecystitis
Which histological subtype of malignancy are patients with poorly controlled ulcerative colitis at increased risk for?
Adenocarcinoma
A 38 year old woman with systemic lupus erythematosus presents to the emergency department.
She reports only passing a small volume of dark brown urine once in the last 3 days. She feels unwell.
Urine dip reveals the presence of haematuria (++) and proteinuria (++). She is hypertensive.
Blood tests reveal an elevated urea and creatinine.
What is the likely cause of the nephritic syndrome?
Rapidly progressive glomerulonephritits
A 32 year old breastfeeding woman presents to her GP with a sore, inflamed left breast. She reports symptoms are worsening. She feels unwell.
Her temperature is 38.5c. She is not tachycardic.
On examination there is a diffusely tender left breast with a firm, fluctuant mass located 2cm medial to the nipple. It is approximately 1cm in size. There is no nipple retraction.
What is the diagnosis?
Breast abscess
A 18 year old man has his urine dipped as part of a pre employment health check.
He has no past medical history and denies any symptoms.
The urine dip shows the presence of microscopic haematuria (+). He says that his father also always has blood in his urine.
What is the likely diagnosis?
Benign familial haematuria
Classically which valve is colonised in IV drug users diagnosed with infective endocarditis?
Tricuspid valve
What tumour marker is associated with pancreatic cancer?
CA 19-9
Carcinoid syndrome is caused by an excess of what neurotransmitter?
Serotonin
What is the minimum random plasma glucose level (in mmol/L) that is required to diagnose diabetes in a symptomatic individual?
11.1
Which enzyme, synthesised by the pancreas, is most sensitive for the diagnosis of pancreatitis?
Lipase
Which class of lupus nephritis on biopsy may show complete sclerosis of nearly all glomeruli?
Class 6
What is the most common type of breast cancer in the UK?
Invasive ductal carcinoma
What is the most common solid organ cancer in men?
prostate cancer
A 32 year old man presents to the emergency department with frothy, cola coloured urine.
He denies pain or fever. He had a sore throat two weeks ago. He has no other medical history of note and this has not happened before.
He also is mildly hypertensive at 150/100.
What type of nephritic syndrome is this patient likely to have?
Post-streptococcal nephritis
A nephrologist is investigating an elderly gentleman with nephrotic syndrome.
A renal biopsy revealed normal histology when viewed under a light microscopy. There were no immune complexes detected in the biopsy either. There was no amyloid deposition.
Urinary Bence Jones Protein and serum electrophoresis were normal.
The patient responded well to steroids and their renal function is normal.
What is the most likely primary cause of the nephrotic syndrome?
Minimal change disease
A 24 year old with Ehlers Danlos syndrome presents to the emergency department with a sudden onset severe headache.
She lost consciousness at the onset of the headache and has vomited twice since.
CT Head non contrast reveals hyperdense enhancement adjacent to the circle of willis.
What is the likely diagnosis?
Chronic subarachnoid haemorrhage
Which valve is predominantely affected in acute rheumatic fever?
Mitral
Epigastric pain that worsens after food is a classical history of what form of peptic ulcer disease?
Gastric
Which lobe of the brain does HSV encephalitis classically affect?
Temporal lobe
What intracerebral tumour is Multiple Endocrine Neoplasia Type 1 associated with?
Pituitary adenoma
A 40 year old man has routine bloods done for yearly statin monitoring at his GP. His monitoring blood tests last year were normal
One week prior he broke his ankle falling off his bike.
Blood tests show a normal ALT, raised ALP, normal AST, normal bilirubin.
What is the likely explanation for his deranged liver function?
Fracture
What cancer is associated with the presence of “oat shaped cells” on biopsy?
Small cell lung cancer
Give an example of a biomarker that may be used to monitor hepatic synthetic function
INR
Which type of cell forms foam cells in the formation of atheromatous plaques?
Macrophages
A 23 year old man visits their GP with a positive pregnancy test, which he did for a joke. A repeat pregnancy test in the surgery is also positive.
He denies any sexual activity in the last year.
What is the possible underlying diagnosis?
Testicular cancer
What is the name given to the criteria used for diagnosis of infective endocarditis?
Duke’s criteria
A 67 year old man is seen by his GP with painless jaundice and weight loss of two months duration.
He has previously had two hospital admissions for pancreatitis related to alcohol.
Blood tests show he has an elevated bilirubin, elevated ALP, borderline elevated yGT, elevated CA19-9 and a normal AFP.
The GP refers him to secondary care using an urgent referral pathway.
What is the most appropriate first line investigation?
CT abdomen
A 64 year old gentleman with hypertension and Type 2 Diabetes Mellitus presents to the emergency department with sudden onset weakness in his right arm.
Neurological examination in the emergency department is normal.
What is the most likely diagnosis?
Transient ischaemic attack
What is the main hormone produced by delta cells in the pancreas?
Somatostatin
A 30 year old woman has experienced a week of progressive retro ocular pain with a loss of visual acuity in the right eye. She does not wear glasses. There is a family history of Type 1 Diabetes.
On examination, there is a right relative afferent pupillary defect with reduced visual acuity. Fundoscopy and intraocular pressure is normal.
What investigation would be diagnostic?
MRI brain and optic nerves
What is the inheritance pattern of alport’s syndrome?
X-linked recessive
What histochemical stain would reveal the presence of copper in a liver biopsy with a patient with Wilson’s disease?
Rhodanine stain
A 80-year-old man presents to his primary care physician with increasing shortness of breath, weight loss and a dry cough over a period of several months. Prior to his retirement, he was a plumber.
Physical examination reveals decreased breath sounds and dullness to percussion in the left lung base.
Chest X ray reveals irregular pleural thickening and a peripheral homogenous opacity in the left lower lung field.
What is the likely diagnosis?
Mesothelioma
A 80 year old man is undergoing elective bilateral knee arthroplasty. He has hypertension but no other past medical history. He is under general anaesthetic.
During the operation, he develops 4mm convex ST elevation in leads II and III. The cardiac monitor immediately alarms and alerts the anaesthetist.
A blood test for high sensitivity Troponin is taken and the anaesthetist informs the surgeon.
30 minutes later, the troponin is reported by the lab as normal.
What is the diagnosis?
Myocardial infarction
A 45 year old woman undergoes routine screening mammography for breast cancer.
There is an area of microcalcification seen at the 7 o clock position of her right breast.
The area is biopsied and is revealed to be a non invasive group of dysplastic cells which has not penetrated the basement membrane.
What is the likely histopathological diagnosis?
Ductal carcinoma in situ
A 83 year old man is started on bicalutamide for treatment of his metastatic prostate cancer.
What is the method of action of bicalutamide?
Androgen antagonist
A 18 year old man presenting with nephritic syndrome, cataracts and sensorineural deafness suggests what underyling diagnosis?
Alport’s syndrome
A biopsy, taken at autopsy, reads: “There is pathological intimal thickening of the right renal artery with significant occlusion of the luminal space. Immunohistochemical staining reveals the presence of macrophages”
What pathology does the report describe?
Atherosclerosis
A biopsy sample from a patient with suspected renal cancer is reported as follows:
“There are neoplastic cells with transparent cytoplasm. Cells are arranged in nests with intervening blood vessels”
What is the specific histological type of cancer?
Clear cell cancer
Give an example of a misfolded protein implicated in the pathogenesis of alzheimer’s disease
Tau
What is the main hormone produced by of alpha cells in the pancreas?
Glucagon
What is the first line chemotherapy drug for treating prostate cancer in the UK?
Docetaxel
Damage to which artery is commonly associated with an extradural haemorrhage?
Middle meningeal artery
A fasting blood glucose value above what value (in mmol/L) on two consecutive occasions in an asymptomatic individual confirms a diagnosis of diabetes?
7
A gentleman is diagnosed with cushing syndrome. Cortisol levels do not alter with either low or high dose dexamethasone suppression test.
A chest x ray reveals a homogenous opacification in the left middle zone.
What histological type of cancer is most likely responsible for this presentation?
Small cell lung cancer
What condition is the presence of waxy casts in urine associated with?
CKD
A 42 year old woman with Type 1 Diabetes Mellitus is investigated for fatigue and pruritus.
She has an elevated serum ALP and an elevated anti mitochondrial antibody titre.
An ultrasound of the biliary tree shows no gross dilatation.
What is the likely diagnosis?
Primary biliary cirrhosis
What respiratory condition is characterised by airspace enlargement and alveolar wall destruction?
Emphysema
Schistosomiasis infection predisposes to what urological malignancy?
Squamous cell carcinoma of the bladder
What structures, present in the large bowel, represent weak points in the bowel wall and allow for the formation of diverticula?
Taenia coli
What is the typical inheritance pattern of Hereditary non-polyposis colorectal cancer/Lynch Syndrome?
Autosomal dominant
Kimmelstiel Wilson nodules found in a renal biopsy are associated with what underlying disease?
Diabetes
What finding on renal biopsy is associated with diabetes?
Kimmelstiel Wilson nodules
A nephrologist is investigating a 45 year old man with nephrotic syndrome.
His past medical history includes poorly controlled Type 2 Diabetes.
A biopsy viewed under light microscopy shows thickening of the glomerular basement membrane.
Some areas are visibly scarred.
Immunofluorescence shows the presence of antibody complexes and complement deposits. There are visible areas of scarring of the glomerular basement membrane, however, some areas appear spared.
What subtype of nephrotic syndrome does this histological pattern and history suggest?
Focal segmental glomerulonephritis
A renal biopsy is performed on a 34 year old man with significant proteinuria. He is known to have Chronic Hepatitis B.
The biopsy reads: “Thickened basement membrane with spike and dome appearance due to electron dense deposits in the subepithelial layer”
What is the likely diagnosis?
Membranous glomerulonephritis
Which glomerulonephritis is commonly associated with Hep B?
Membranous
What is the name given to dilated veins, commonly found in the oesophagus and are often associated with portal hypertension?
They are a common cause of sudden, life threatening, haematemesis in alcoholics.
Oesophageal varices