Kasabach–Merritt syndrome (KMS) is a potentially life-threatening coagulopathy characterized by enlarging hemangioma with severe thrombocytopenia.[1] KMS. Kasabach-Merritt syndrome is characterised by the combination of rapidly growing vascular tumour, thrombocytopenia, microangiopathic haemolytic anaemia. [2] Thereafter, the association of a capillary hemangioma and thrombocytopenia was labeled Kasabach-Merritt syndrome (the name was later changed to KMP).

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They usually are seen in infants less than 2 years of age, although cases have been reported in adults. Injection Vincristine has been used as a last resort at a dose of 0.

If complete surgical resection meeritt feasible, it provides a good opportunity for cure although it can be dangerous to operate on a vascular tumor in a patient prone to bleeding, even with appropriate surgical subspecialists involved. Retrieved from ” https: These tumors are made up of abnormal endothelial cells spindle kaswbach and also lymphatic malformation.

Kasabach–Merritt syndrome with large cutaneous vascular tumors

Please review our mdrritt policy. Box Bethesda, MD Phone: MRI of the right shoulder revealed a diffuse, large circumferential, soft tissue mass lesion in the right arm around the humeral shaft, extending over the shoulder up to the right suprascapular region and elbow joint caudally.

Update kaasbach vascular tumors of infancy. They present as brown, red or purple areas of skin and are firm to touch.


Baby was born at term gestation by normal vaginal delivery at home and cried immediately after birth. Treatment aims to involute the tumour to prevent significant morbidity or mortality, or in response to a life-threatening event.

Kasabach-merritt syndrome.

However, parents refused for surgery. Pavai ArunachalamV. Currently, there are no known treatment guidelines. Open in a separate window. An ultrasonogram of the neck and shoulder revealed a large soft tissue mass involving subcutaneous and muscular plane with increased vascularity within and arterialization of the veins. Cardiovascular and respiratory system examination was normal.

Kaposiform Hemangioendothelioma with Kasabach—Merritt Syndrome — right arm treated with steroids and merrutt. Sustained hypoglycemia in infancy has been associated with long-term neurologic sequelae.

The fourth baby has been successfully treated with injection Vincristine. If no response is seen within a week or two after starting the therapy, then either the dose is increased or kxsabach alternative therapy is commenced.

Kasabach-Merritt phenomenon – NORD (National Organization for Rare Disorders)

His serum electrolytes and renal function tests were within normal limits. Average time reported for normalization of the platelet count was 5. Possible complications of steroid use include interference with growth, reversible osteoporosis, and increased susceptibility to infection. N Engl J Med. Congenital hemangioma, Kaposiform hemangioendothelioma, Kasabach—Merritt syndrome, propranolol, steroids, vincristine. The platelet count improved and the steroids were continued for 3 months.


It interferes with the mitotic spindle microtubules by binding to tubulin, resulting in inhibition of mitosis.

Propranolol may mask the clinical signs of early cardiac failure and diminish cardiac performance. The antenatal scans were normal. Vincristine is a naturally occurring vinca alkaloid.

C — reactive protein was negative. Steroids are considered as the most effective 1 st line treatment. However, child developed progressive, increasing cholestasis on steroids. They are usually seen in infants less than 2 years of age, although cases have been reported in adults.

A case sndrome and review of literature.

Kaposiform hemangioendothelioma with Kasabach-Merritt syndrome: These tumors are not hemangiomas. N Engl J Med. General Discussion Kasabach-Merritt phenomenon KMP is a rare condition that is associated with a coagulopathy with features including profound thrombocytopenia low plateletshypofibrinogenemia low fibrinogenand anemia.

The combination of vascular tumor and consumptive thrombocytopenia defines KMS. A Extensive bilateral periorbital ecchymosis B Apparent bilateral subconjunctival haemorrhage. Treatment of Kasabach—Merritt syndrome: Author information Copyright and License information Disclaimer. There is no known standard of therapy for Kasabach-Merritt phenomenon.

Successful treatment of Kasabach-Merritt syndrome with vincristine and surgery: She had normal chemistry, prothrombin time