Extracutaneous mastocytoma is a rare type of mastocytosis, a disorder characterized by an abnormal accumulation of mast cells in the skin and/or other organs. It is a type of mastocytosis that affects organs other than the skin, such as the liver, spleen, and bone marrow. Symptoms of extracutaneous mastocytoma can include abdominal pain, nausea, vomiting, diarrhea, and fatigue. Treatment typically involves medications to reduce the number of mast cells and to control symptoms.

The most common symptoms of extracutaneous mastocytoma include:

-Skin Lesions that may be red, raised, and itchy
-Painful swelling in the affected area
-Fever
-Fatigue
-Nausea
-Vomiting
-Diarrhea
-Abdominal pain
-Anaphylaxis (severe allergic reaction)
-Lightheadedness
-Rapid heart rate
-Difficulty breathing

The exact cause of extracutaneous mastocytoma is unknown. However, it is believed to be related to a genetic mutation that affects the mast cells, which are a type of white blood cell. This mutation causes the mast cells to become overactive and produce too many chemicals, leading to the development of the mastocytoma.

1. Topical corticosteroids: Topical corticosteroids are the most common treatment for extracutaneous mastocytoma. These medications are applied directly to the affected area and can help reduce inflammation and itching.

2. Oral antihistamines: Oral antihistamines can help reduce itching and other symptoms associated with extracutaneous mastocytoma.

3. Phototherapy: Phototherapy, or light therapy, can be used to reduce the size of the mastocytoma.

4. Surgery: In some cases, surgery may be necessary to remove the mastocytoma.

5. Systemic medications: Systemic medications, such as oral corticosteroids, may be prescribed to reduce inflammation and itching.

1. Genetic predisposition
2. Exposure to environmental triggers such as insect bites, medications, and certain foods
3. Previous history of mastocytosis
4. Family history of mastocytosis
5. Certain medical conditions such as anemia, asthma, and allergies
6. Certain genetic mutations, such as c-KIT mutations

At this time, there is no known cure for extracutaneous mastocytoma. However, medications such as antihistamines, corticosteroids, and cromolyn sodium can be used to help manage symptoms. In some cases, surgery may be necessary to remove the tumor.