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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It is characterized by severe thrombocytopenia, microangiopathic anemia, hypofibrinogenemia, and elevated fibrin split products in the presence of a rapidly enlarging tumor. Kasabach—Merritt syndrome Merritt is a potentially life-threatening coagulopathy characterized by enlarging hemangioma with severe thrombocytopenia.

Investigational Therapies Information on current clinical trials is posted on the Internet at www. Hence, platelet transfusions were discontinued and propranolol was started.

A stepwise regimen of prednisolone, dipyridamole, and interferon. Also, this treatment is not without its own troubling adverse effects. Propranolol’s familiarity, long track record, ayndrome and dramatic efficacy relative to current standard of care are causes for both excitement and caution. The possibility of disseminated intravascular coagulationa dangerous sydnrome difficult-to-manage condition, is concerning. Large, indurated, erythematous, non-pulsatile swelling was present over whole of right half of the face, which was firm in consistency and local temperature was not elevated [ Figure 1 ].

Comparisons may be useful for a differential diagnosis: A retrospective study of treatment with vincristine. However, while the patient was there, she developed severe respiratory distress with inspiratory stridor and desaturation.


The hemangioma is often within the skin but can be present anywhere, including retroperitoneal organs, the mediastinum, the pelvis, visceral organs, or the mesentery. It can be achieved by different techniques: Vincristine is a naturally occurring vinca alkaloid. Patients uniformly show severe thrombocytopenia, low fibrinogen levels, high fibrin degradation products due to fibrinolysisand microangiopathic hemolysis. Treatment of Kasabach—Merritt syndrome: Sometimes a combination of medications has been used.

Initially a vascular lesion is noted on the skin which can be firm, indurated and purpuric. Surgical excision is curative but most lesions are not amenable to this option.

Kasabach – Merritt syndrome: A case report

Kasabach-Merritt phenomenon KMP is a life-threatening, consumptive coagulopathy associated with an underlying vascular tumor. This coagulopathy is not Kasabach-Merritt phenomenon. Box Bethesda, MD Phone: They are at risk of bleeding complications including intracranial hemorrhage. Steroids are considered as the most effective 1 st line treatment.

The kasabavh was subsequently discharged on oral steroids and propranolol.

Kasabach–Merritt syndrome with large cutaneous vascular tumors

We, hereby, present a 6-day-old male child presenting with facial hemangioma and intracranial hemorrhage, and KMP responding well to steroids and vincristine. When these tumors with KMP are internal such as in the pleural or retroperitoneum, they can cause significant morbidity and mortality. They are often painful. D ICD – Hemangiomas are benign tumors with endothelial proliferation which are usually not present at birth but proliferate and grow over a 4 to 6 month period of time and then stabilize and involute.


Diagnosis of KMS is made based on the constellation of a vascular lesion, thrombocytopenia, consumptive coagulopathy, and microangiopathic hemolytic anemia. Information on current clinical trials is posted on the Internet at www. Intracranial hemorrhage did not require surgical drainage as per neurosurgical consultation. Open in a separate window.

J Dyndrome Assoc Pediatr Surg ; 17 1: There was a dramatic response in the platelet count with regression of the tumor after commencing propranolol. The rare vascular tumors associated with Kasabach-Merritt phenomenon were misdiagnosed as hemangiomas in the past.

It interferes with the mitotic spindle microtubules by binding to tubulin, resulting in inhibition of mitosis. Blood tests may include a full blood count and film, clotting screen and fibrin degradation products.

Update on vascular tumors of infancy. A review of the therapeutic options and a case report of successful treatment with radiotherapy and interferon alpha. There was no history of prolonged or difficult labor.

Neonatal Kasabach-Merritt phenomenon

C — reactive protein was negative. Maguiness S, Guenther L. DermNet NZ does not provide an online consultation service.

Antiplatelet agents aspirin, dipyridamole have also been used in some of the cases.