1. 
   Mastocytoma
   A mastocytoma or mast cell tumor is a type of tumor consisting of mast cells. It is found in humans and many animal species; in human medicine it also can refer to an accumulation or nodule of mast cells that resembles a tumor. Mast cells originate from the bone marrow and are normally found throug...
   Found op http://en.wikipedia.org/wiki/Mastocytoma
   
   
2. 
   Mastocytoma
   Mastocytoma: A form of mastocytosis characterized by a benign nodular skin tumor infiltrated by mast cells. Usually present at birth or in early childhood and resolves spontaneously. Also called a mast cell tumor.
   Found op http://www.medterms.com/script/main/art.html?articlekey=32783
   
   
3. 
   mastocytoma
   Neoplastic mast cells.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   mastocytoma
   <oncology, tumour> Neoplastic mast cells. ... (18 Nov 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?mastocytoma
   
   
5. 
   mastocytoma
   (mas″to-si-to´mә) a benign, local aggregation of mast cells forming a nodular tumor.
   Found op http://www.encyclo.co.uk/local/21001
   
   
6. 
   mastocytoma
   Type: Term Pronunciation: mas′tō-sī-tō′mă Definitions: 1. A fairly well-circumscribed accumulation or nodular focus of mast cells, grossly resembling a neoplasm.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=53079
   
   
7. 
   Mastocytoma
   Mastocytomas are localized collections of mast cells. Typically .5 to 1.5 cm in diameter, they have a yellow-red-brown color. Stroking the lesion elicits an urticarial response, Darier's sign. Extensive mast cell involvement of the skin is called urticaria pigmentosa.
   Found op http://www.skincareguide.ca/glossary/m/mastocytoma.html
   
   
8. 
   mastocytoma
   A growth or lump of mast cells (a type of white blood cell). Mast cell tumors can involve the skin, subcutaneous tissue, and muscle tissue. Also called mast cell tumor.
   Found op http://www.cancer.gov/dictionary?expand=M
   
   

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