Superficial thrombophlebitis is seen in -

Ans. is 'a' i.e., Trousseau's syndrome * Migratory superficial thrombophlebitis is known as Trousseau's syndrome.Trousseau's Syndrome* It is characterized by recurrent episodes of thrombophlebitis in superficial veins which changes locations over time (thrombophlebitis migrans or migratory thrombophlebitis).* The clot is tender and can be felt as a nodule under the skin. It can involve uncommon sites, such as the chest wall and arms.* This syndrome is a sign of internal malignancy & is particularly associated with pancreatic, gastric and lung cancer.* Heparin therapy is recommended to prevent future clots.Also know* Trousseau sign of latent tetany is caused by hypocalcemia.