Key result
Resection of a neck tumor in an 83-year-old woman revealed an endovascular papillary angioendothelioma (Dabska tumor), a rare occurrence in an aged patient.
Case Report (n=1)
Reports a rare case of endovascular papillary angioendothelioma (Dabska tumor) occurring in an elderly patient, a tumor typically found in infants and young children.
Answers are grounded in this paper and cite their sources.
Dabska tumor warrants consideration in elderly neck masses; extends known age range but remains hypothesis-generating from single case.
A patient with endovascular papillary angioendothelioma with a low grade of malignancy showing papillary proliferation of endothelioid cells is presented. The patient, an 83-year-old woman, underwent resection of a tumor of the neck. At operation a 9 x 7 cm cystic tumor containing yellow transparent liquid with clots was found in the subcutaneous tissue. Histological studies showed endothelioid cells with spindle-shaped nuclei proliferated in layers around the fibrovascular cores, which showed the characteristic appearance of papillary proliferation. These cells were immunohistochemically positive for CD31, CD34 and factor VIII-related antigen. Based on these observations, the tumor was considered to be an endovascular papillary angioendothelioma (Dabska tumor). Dabska tumor is a vascular tumor with a low grade of malignancy and usually occurs in infants and young children. About 13 cases of Dabska tumor have been reported. The occurrence of a Dabska tumor in an aged patient is considered to be rare.
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Yamada et al. (1998) conducted a case report in Endovascular papillary angioendothelioma (Dabska tumor) (n=1). Tumor resection was evaluated on Histological and immunohistochemical diagnosis. Resection of a neck tumor in an 83-year-old woman revealed an endovascular papillary angioendothelioma (Dabska tumor), a rare occurrence in an aged patient.
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