Q- A 24-year-old woman presents with neck swelling. Fine-needle aspiration of a thyroid nodule shows polygonal cells with amyloid deposits in the stroma.
Which hormone is most likely elevated in this patient?
A-Calcitonin
B-Parathyroid hormone
C-Thyroxine (T4)
D-Triiodothyronine (T3)
Q- A 67-year-old man presents with sudden abdominal pain and bloody diarrhea. CT scan shows thickening of the colon at the splenic flexure.
Which vascular pathology best explains this finding?
A-Ischemic colitis due to watershed infarction
B-Mesenteric venous congestion
C-Portal vein thrombosis
D-Ulcerative colitis
Q- A 55-year-old man with chronic alcoholism presents with ascites and spider angiomas. Liver biopsy shows regenerative nodules surrounded by fibrous septa.
What is the underlying pathological process?
A-Acute hepatitis
B-Cirrhosis
C-Fatty liver disease
D-Hepatocellular carcinoma