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 are often painful. This is a rare disease with no consensus kaswbach guidelines or large randomized controlled trials to guide therapy. Investigational Therapies Information on current clinical trials is posted on the Internet at www.

She was keeping her neck in hyperextension posture, afebrile with mild respiratory distress and well hydrated. If complete surgical resection is 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. Successful management of Kaposiform kassabach with Kasabach-Merritt phenomenon using vincristine and ticlopidine.

Rare Disease Database

When last seen at 1 year of age, there was faint skin staining at the site of the original hemangioma [ Figure 3 ]. A case report kasabaach review of literature. Last Updated May Parents also noticed progressively increasing yellowish discoloration of skin and sclera for 2 days and lethargy and decreased oral acceptance for one day.

American Journal of Diseases of Children.

A tracheostomy tube was inserted immediately to maintain an adequate airway and the diagnosis of Kasabach-Merritt syndrome was made and was referred to the ENT surgeon for further investigation and treatment of the hemangioma. Capillary hemangioma with extensive purpura: Low platelets can be associated with other vascular tumors and malformations and this should not be classified at Kasabach-Merritt phenomenon.


This coagulopathy is not Kasabach-Merritt phenomenon. Large malformations such as venous or venous lymphatic lesions and multiple lesions can causes coagulopathies with low platelet counts ysndrome other coagulation proteins.

Propranolol was tapered after a month and steroids were continued and then tapered. A number of treatments have been used for Kasabach-Merritt syndrome including vincristine and systemic steroidsas well as interferon alpha, cyclophosphamideaspirin and mmerritt, and radiation therapy.

It has been suggested that transfusion of exogenous blood products be withheld if there is no evidence of bleeding kwsabach, as cytokines present in transfused blood may exacerbate the angiogenic process. D ICD – J Pediatr Hematol Oncol.

Kasabach–Merritt syndrome

The steroids were continued and then tapered after 6 months. The blood clotting disorder results from platelets and other clotting factors from the blood being used up consumed within the tumour. Successful treatment of Kasabach-Merritt syndrome with vincristine and surgery: Computerized tomography CT abdomen did not reveal any pancreatic or hepatic arteiovenous malformation or hemangioma. Early diagnosis and institution of treatment is associated with favorable outcome.

Kasabach-merritt syndrome.

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.

He was a good size baby, though exact birth weight was not recorded and was exclusively breastfed.

The hemangioma slowly diminished in size. However, parents refused for surgery. Effective therapy of a vascular tumor of infancy with vincristine. Anticoagulant and antiplatelet medications can be used after careful assessment of the risks and benefits. They present as brown, red or purple areas of skin and are firm to touch.

Support Center Support Center. It is named after Haig Haigouni Kasabach and Katharine Krom Merrittthe two pediatricians who first described the condition in The first baby was a classical case of KMS with KHE, wherein the hemangioma responded to prednisolone which is the first line of therapy. Ultrasonography skull revealed features of facial hemangioma with intraventricular hemorrhage.


All our patients responded to medical management.

Vascular tumors in infancy may present with KMS and require aggressive treatment. Hemangioma involving right half of face and earlobe. Kasabach-Merritt syndrome, Haemangioma, Thrombocytopenia, Hypofibrinogenemia.

As we broaden propranolol indication to include a typically outpatient condition, restraint and prudence are paramount. A stepwise regimen of prednisolone, dipyridamole, and interferon. Recently, oral sirolimus which has anti-angiogenic activity has been reported to be remarkably effective in a few cases.

Conjugated hyperbilirubinemia decreased over next 2 weeks; however, child again developed severe thrombocytopenia. Open in a separate window.

Kasabach–Merritt syndrome – Wikipedia

Box Bethesda, MD Phone: It was a tense infiltrating vascular lesion with thickening of the skin. The platelet count did not improve and hence the child was started on propranolol.

The lesions are typically superficial and solitary, but may involve internal structures such as the liver. Kasabach-Merritt phenomenon KMP is a life-threatening, consumptive coagulopathy associated with an underlying vascular tumor. He merritt passing urine and stools normally. Wyndrome, up to two-thirds of lesions will not respond to corticosteroids, or will quickly relapse once treatment is discontinued [ 6 ]. A two- and-half month old Saudi female infant was admitted to Al —Taif Children Hospital, Kingdom of Saudi Arabia, with history of nasal blockage, mild respiratory distress and noisy breathing for 20 days, associated with merrift periorbital ecchymosis and redness of both eyes for 15 days Figure 1 A.

Most tufted angiomas do not cause Kasabach-Merritt syndrome and metastasis is rare.