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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Case 3 A full-term male baby was referred at 7 hours of life with a large swelling involving the right arm. J Am Acad Dermatol. Infobox medical condition new All articles with unsourced statements Articles with unsourced statements from November The Johns Hopkins University.

Kasabach – Merritt syndrome: A case report

No arteriovenous malformation kasabacn noted in brain or other body parts. Currently, there are no known treatment guidelines. If a response is achieved, the dose is reduced slowly; too rapid a reduction in dose, particularly during the meritt phase, is often associated with a recrudescence of symptoms.

Intracranial hemorrhage did not require surgical drainage as per neurosurgical consultation. In vitrovincristine also induces apoptosis of tumor cells as well as endothelial cells.

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

Update on vascular tumors of infancy. It interferes with the mitotic spindle microtubules by binding to tubulin, resulting in inhibition of mitosis. Low platelets can be associated with other vascular tumors and malformations and this should not be classified at Kasabach-Merritt phenomenon.


National Center for Biotechnology InformationU. Kaposiform haemangioendotheliomas usually regress with time but do not completely disappear. All studies receiving U. The mechanisms of steroid therapy are unclear, but prednisone appears to increase vasoconstriction, inhibit fibrinolysis by inhibiting production of tissue plasminogen activators and increasing the plasminogen activator inhibitors ,[ 9 ] increase platelet longevity and disrupt angiogenesis.

Self-skin examination New smartphone apps to check your skin Learn more Sponsored content. Blood gas result was normal and there was no bacterial growth from blood and urine cultures.

Large malformations such as venous or venous lymphatic lesions and multiple lesions can causes coagulopathies with low platelet counts and other coagulation proteins. A 6-day-old male baby was brought to emergency with swelling over right half of face since birth and jaundice and lethargy for 2 days.

Previously Merrittt syndrome was thought to be caused by large infantile haemangiomas also known as cavernous haemangiomas or capillary haemangiomas however this is not the case. There was no history of fever, cough, vomiting, trauma or foreign body inhalation or ingestion.

Capillary hemangioma with extensive purpura: A number of specialists may be involved in the care of a child with Kasabach-Merritt syndromeincluding paediatricians, dermatologists, haematologists, surgeons and radiologists. Years Published, Propranolol’s familiarity, long track record, tolerability and dramatic efficacy relative to current standard of care are causes for both excitement and caution.

Last Edited November 27, Author information Copyright and License information Disclaimer. In other zyndrome Wikimedia Commons. Kaposiform Hemangioendothelioma with Kasabach—Merritt Syndrome — right arm treated with steroids and propranolol.

Updated February 22, Open in a separate window. The antenatal scans were normal. Tumors can be found in the trunk, upper and lower extremities, retroperitoneum, and in the cervical and facial areas.


She was delivered at term following normal spontaneous vaginal delivery to non consanguineous parents. Embolisation and surgical removal may also be considered. Soon after admission she developed epistaxis from both nostrils. The steroids were continued and then tapered after 6 months.

Rare Disease Database

Kasabaxh should be gradually tapered over a period of 2 weeks. Vincristine, interferon alpha, antifibrinolytics, radiation, embolization, and surgery are subsequent treatment options in steroid non-responders based on affordability, availability, and feasibility of a particular modality.

Parents also noticed progressively increasing yellowish discoloration of skin and sclera for 2 days and lethargy and decreased oral acceptance for one day.

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They are often painful. Last Updated May It usually presents in early infancy, but onset ssyndrome early neonatal period, facial hemangioma, and vincristine use in neonates has rarely been reported.

It is believed to be secondary to sequestration or trapping of platelets into the tumor. A stepwise regimen of prednisolone, dipyridamole, and interferon.

Journal kasabah Pediatric Surgery. Kaposiform haemangioendotheliomas Kaposiform haemangioendotheliomas are typically solitary tumours which appear in the soft tissues of the limbs, head and neck or retroperitoneum.