What is Kasabach-Merritt syndrome?
Kasabach-Merritt phenomenon (KMP) is a rare, potentially life-threatening condition. It occurs when certain fast-growing vascular tumors [kaposiform hemangioendothelioma (KHE) or tufted angioma (TA)] trap and destroy platelets, interfering with blood clotting and raising the risk of serious bleeding.
What is tufted angioma?
Tufted angioma is a benign (non-cancerous) vascular tumor and mild variant of Kaposiform hemangioendothelioma (KHE). On biopsy, a tumor may be called tufted angioma, KHE or “tufted angioma/KHE spectrum.” We feel these tumors are one and the same, but represent a spectrum of severity.
What is the meaning of Kaposi sarcoma?
Listen to pronunciation. (kuh-POH-zee sar-KOH-muh) A type of cancer in which lesions (abnormal areas) grow in the skin, lymph nodes, lining of the mouth, nose, and throat, and other tissues of the body. The lesions are usually purple and are made of cancer cells, new blood vessels, and blood cells.
What is Pseudomyogenic Hemangioendothelioma?
Pseudomyogenic hemangioendothelioma (PMHE) is a rare vascular tumor that was added to the World Health Organization classification of soft tissue tumors. These tumors have a unique clinical presentation and microscopic appearance as compared to other vascular tumors in the differential diagnosis.
What causes tufted angioma?
The pathogenesis of tufted angiomas is not well understood. Vascular markers (CD31 and CD34), vascular endothelial growth factor receptor-3 (VEGFR-3), and lymphatic markers (D2-40 and PROX1) on the neoplastic cells suggest they may be derived from the endothelial cells of lymphatic vessels.
What is Angioma Serpiginosum?
Angioma serpiginosum is a benign vascular condition. It is characterized by pinpoint violaceous to coppery-red punctate maculopapular eruptions that cluster together in linear, serpiginous or gyrate patterns on an erythematous background, chiefly on the lower limbs of females.
What causes Lymphangiomatosis?
The exact cause of diffuse pulmonary lymphangiomatosis is unknown. Lymphangiomatosis in general is believed to result from abnormalities in the development of the lymphatic vascular system during embryonic growth.
Is there a cure for lymphatic malformation?
LMs can also grow after trauma, during puberty or during pregnancy. Although some LMs can be cured, many cannot be cured with treatment. These patients will need to be treated at different times throughout their life. Treatment is typically designed to manage the LM to decrease the size and symptoms.
What are the 4 types of Kaposi sarcoma?
There are 4 main types of Kaposi’s sarcoma, and each type is treated in a different way.
- HIV-related Kaposi’s sarcoma. Kaposi’s sarcoma is one of the main types of cancer to affect people with HIV.
- Classic Kaposi’s sarcoma.
- Transplant Kaposi’s sarcoma.
- Endemic or African Kaposi’s sarcoma.
What causes epithelioid hemangioendothelioma?
What is the genetic cause of EHE? As is the case with many other cancers, EHE is caused by a genetic malfunction, a specific chromosomal rearrangement or translocation (swapping of genetic material) called the ‘WC Fusion. ‘ This discovery was made by dedicated scientists studying the molecular biology of EHE.
How rare is Pseudomyogenic Hemangioendothelioma?
Pseudomyogenic hemangioendothelioma (PMHE) is a rare endothelial neoplasm that involves the bones in only 14% of all cases. The optimal treatment strategy has not been established.