Vascular Path Robbins Part 3 Flashcards Preview

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Flashcards in Vascular Path Robbins Part 3 Deck (41)
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dilation of venous plexus at anorectal jxn
-pain, bleeding, may ulcerate


thrombophlebitis- most where?

(also called phlebothrombosis)
-venous thrombosis and infl
-90% in deep v's in legs- can be completely asymptomatic!!


risk factor for DVT in LE?

-prolonged activity/immobilization- single most important!
-systemic hypercoagulability (may also increase risk)
-mechanical factors that slow venous return- CHF, pregnancy, obesity


most common serious clinical complication of DVT?

-pulmonary embolism- often 1st manifestation of thrombophlebitis


migratory thrombophlebitis - assoc with?

(Trousseau sign)
-assoc with cancer- hypercoagulability!
-mucin-producing adenocarcinomas
-venous thromboses appear at 1 site, disappear, and reappear at another site
-adenocarcinomas of lung, ovary, pancreas


superior vena cava syndrome- caused by? effects

-neoplasms or aortic aneurysms that compress or invade the SVC
-dilation of v's of head, neck, arms with cyanosis
-pulm vessels may be compressed- resp distress


inferior vena cava syndrome-caused by? effects?

-neoplasms that compress or invade IVC
-thrombosis of hepatic, renal, or LE v's that moves cephalad
-hepatocellular carcinoma and RCC- grow within v's!
-obstruction- LE edema, distention of superficial collateral v's of lower abdomen, proteinuria (with renal v involvement)


lymphangitis- what is it? caused by? manifested by?

acute infl elicited by the spread of bacterial infections into lymphatics
-group A B-hemolytic streptococci- most common
-dilated and filled with exudate of neutrophils/monocytes
-red, painful subcutaneous streaks and painful enlargement of draining LNs (lymphadenitis)


primary lymphedema- due to?

isolated congenital defect or familial Milroy disease (heredofamilial congenital lymphedema)
-lymphatic agenesis or hypoplasia


secondary or obstructive lymphedema- due to?

blockage of a previously normal lymphatic
-malignant tumors
-surgical procedures that remove regional groups of LNs
-postirradiation fibrosis
-postinfl thrombosis and scarring


persistent edema from cancer- leads to?

-peau d'orange appearance of overlying skin- seen in breast cancers (lymphatics clogged with tumor cells)
-chylous ascites (abdomen), chylothorax, chylopericardium- caused by rupture of dilated lymphatics (secondary to obstruction from a tumor)