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3,531 questions
: Au cours de la croissance interstitielle, les cellules cartilagineuses élaborent les constituants de la matrice avant de se diviser.
A 62-year-old man underwent an anterior resection for rectal carcinoma. On the first postoperative day he has a pyrexia of 39°C and a swollen, tender right calf with shiny skin. What is the most likely diagnosis of this patient?
: Les disques intervertébraux sont un bon exemple de cartilage élastique, visible en microscopie optique à la fuschine résorcine.
: Le cartilage fibreux est préférentiellement observé au niveau des zones où les forces mécaniques sont peu importantes.
A 32-year-old woman twists her right ankle, sustaining an isolated Weber B undisplaced lateral malleolus fracture with no displacement of the ankle mortice. What is the best next step in management of this patient?
: Chez l'adulte, on observe de très nombreux groupes isogéniques coronaires au niveau du cartilage de la trachée.
the most likely diagnosis?
A man presents after a game of squash with pain in the back of the calf and heel that was of sudden onset and difficulty weight bearing. On calf-squeeze test, the ankle does not dorsiflexion. What is the best next step in management of this patient?
A patient who had a breast cancer excised 5 years previously presents with weight loss and a pathological fracture of the femur. You want to know if there is evidence of other metastases in the body. What is the best next step in management of this patient?
A 47-year-old woman has a 12-week history of tingling and numbness in the hand, which is worse at night. On examination, there is wasting of the thenar eminence. What is the most likely diagnosis?
A patient who underwent an oesophagectomy in an attempt to cure stage 1 cancer becomes confused 4 days postoperatively and pulls out his nasogastric tube. What is the best course of action?
: Les glandes composées ont une partie sécrétrice ramifiée comme les glandes de Brüner du duodénum.
A 38-year-old painter and decorator presents with gradual onset of pain in both shoulders, left worse than right. This is especially severe when he is trying to paint ceilings. On USMLE Surgery2e/Diagnostic examination, pain is experienced at between 60 and 100 degrees of abduction. Shoulder radiographs are normal. What is the most likely diagnosis?
A 68-year-old woman presents with a painless but progressively weak shoulder. She can only abduct it with a trick movement hunching her shoulder. Otherwise, there seems to be very little power of abduction. What is the most likely diagnosis?
A 23-year-old long-distance runner spontaneously develops a pain over the head of her second metatarsal. Radiographs reveal an undisplaced fracture across the neck of the second metatarsal. What is the most likely diagnosis?
A patient presents having fallen on his head from a height. The atlas is fractured and expanded. What is the most likely diagnosis of this patient?
A 67-year-old woman presents with severe left knee pain affecting her mobility and quality of life. Radiographs of the knee demonstrate tricompartmental idiopathic osteoarthritis of the knee. What is the best next step in management?
A 49-year-old woman presents with advanced radiographic osteoarthritis of the knee, isolated to the medial compartment. What is the best next step in management?
A patient is found to have a Power ratio of more than one. What is the most likely diagnosis of this patient?
A 35-year-old woman has been admitted as an emergency with right upper quadrant pain, pyrexia and vomiting. On examination she is toxic, with a positive Murphy's sign. What should be the first investigation?