Bilateral Ewing Sarcoma/Primitive Neuroectodermal Tumor of the Breast: A Very Rare Entity and Review of the Literature

Table 1

Summary of primitive neuroectodermal tumors of the breast reported in the literature.

Reference	Age; (years)	Presentation	Size (cm)	Disease	Treatment	Outcome
Tamura et al. [2]	47	Breast lump	2.1×1.8	Primary	Mastectomy	Not available
Maxwell et al. [3]	35	Breast lump	1.8	Primary	Lumpectomy; + chemotherapy	Free of disease at 2.5 years
da Silva et al. [4]	35	Breast lump	12 ×7.5	Primary	Chemotherapy; + radiotherapy	Local and pulmonary relapse; death at 2 years
Ko et al. [5]	33	Breast lump	2.5× 2	Primary	Lumpectomy	Free of disease at 6 months
Vindal and Kakar [6]	26	Breast lump	3×2	Primary	Wide local excision; + adjuvant chemotherapy	Free of disease at 36 months
Kwak et al. [7]	49	Mass in the axilla		Metastatic	Chemotherapy	Not available
Dhingra et al. [8]	26	Breast lump	3.5× 3	Primary	Mastectomy; + chemotherapy; + radiotherapy	Free of disease at 12 months
Suebwong et al. [9]	46	Breast lump	4	Primary	Chemotherapy; + radiotherapy	Local and pulmonary progression
Majid et al.	30	Bilateral breast lump	7 and 5 in the right and left, respectively	Metastatic	Chemotherapy	The patient’s medical; condition deteriorated, and she died after 2 cycles of chemotherapy