Simple Deck Flashcards
(146 cards)
Autosomal dominant (adult) polycystic kidney disease
PKD-1 and 2 –> polycystin 1 and 2
tons of fluid filled cysts, irregular surface, organ enlargement
asymptomatic until 4th decade
Clinical: flank pain, loin heaviness, liver cysts
Autosomal recessive (childhood) polycystic kidney disease
PKHD-1 –> fibrocystin
surface is smooth, radial arrangement
congenital hepatic fibrosis, too
Glomerulonephritis
immune complexes kill glomeruli
hypercellularity, glomerular necrosis
patients present with nephritic syndrome
Acute poststreptococcal glomerulonephritis
Strep Ag-Ab complexes kill glomeruli
IgG and C3 deposits
Subepithelial humps and lumps and humps and lumps
Red casts in the tubules
Crescentic glomerulonephritis
Severe glomerulonephritis
anti-type IV collagen Ab
breaks in the BM, crescents formed by proliferated parietal cells
clinical: severe, rapid nephritic syndrome
Goodpasture syndrome
Autoimmune disease that attacks collagen in the type IV collagen in the BM of lungs and kidneys, causes crescentic glomerulonephritis
Acute tubular necrosis
causes: ischemia or toxins
straight PCT and thick Henle get jacked up
proteinaceous casts of Hb and proteins in DCT and CDs
Acute pyelonephritis
cause: gram-negative bacteria; ascending or hematogenous
bacteria in urine: 100k/ml
focal lesions in kidneys
leukocyte casts in urine
Wilms tumor
large kidney tumor in children
embryonal elements/mixed tissues
90% sporadic, 10% WT1 gene
Renal cell carcinoma
malignant neoplasm of renal tubular or ductal epithelial cells
seen in older men
sporadic VHL mutation association
Clear Cell is common type: yellow-orange mass from lipid and glycogen
Clinical: hematuria, flank pain, palpable mass is the triad
Urothelial carcinomas
cancer of the bladder - transitional epithelium
cigarette smoking might cause it
clinical: sudden hematuria, dysuria
most (85%) are confined to bladder
GH/prolactin-secreting pituitary adenoma
Most common multi-hormone adenoma of the anterior pituitary
Amenorrhea, galatorrhea, loss of libido, infertility
Gigantism or acromegaly
Prolactinoma
Adenoma of the anterior pituitary that causes amenorrhea, galactorrhea, loss of libido, and infertility in women.
Somatotroph adenoma
Adenoma of the anterior pituitary that causes acromegaly or gigantism.
ACTH-producing adenoma
Adenoma of the anterior pituitary that causes Cushing syndrome, hypercortisolism, hyperpigmentation.
Craniopharyngioma
benign tumor from the remnants of Rathke’s pouch
Sheehan syndrome
hypotension from postpatrum hemorrhage –> ischemic necrosis of the pituitary
Cretinism
hypothyroidism at an early age
impaired skeletal and CNS development, coarse facial features, protruding tongue, umbilical hernia
Hashimoto disease
Goiterous hypothyroidism without iodine deficiency; autoimmune - T cells kill the thyroid gland.
Gland is diffusely enlarged, firm. Cut surface is pale tan and flashy.
Clinical features typical of hypothyroidism
Papillary carcinoma
Most common thyroid cancer type.
MAP kinase pathway activation, RET proto-oncogene mutated
Orphan Annie Eye nuclei, dense fibrovascular cores, psamonna bodies
Hyperparathyroidism
Hypersecretion of PTH from various causes - often to correct for hypocalcemia.
Clinical: hypercalcemia, bone demineralization, urinary stones, bile stones, caridiac arrhythmias.
Cushing syndrome
Adrenal hyperfunction –> lots of cortisol
Clinical: moon face, buffalo hump, skin striations
Addison disease
Adrenal hypofunction caused by autoantibody attack, TB, AIDS, or metastatic cancers.
Clinical: weakness, weight loss, GI symptoms, hyperpigmentation
Phaeochromocytoma
Neoplasm of the adrenal medulla –> tons of catecholamines
Most are sporadic, some associated with VHL disease, Multiple endocrine neoplasia (MEN)
Circumscribed nests of neoplastic cells (Zellballen).
Clinical: hypertension, tachycardia, nervousness. Dx made if catecholamines and vanillylmandelic acid are in urine.