Synchronous ipsilateral carcinoma of the accessory mammary gland and primary lymphoma of the breast with subsequent rectal carcinoma: report of a case

Table 1 Clinical characteristics of reported cases of synchronous primary breast lymphoma and breast carcinoma

Case number [Reference]	Age/sex	Histology of PBL	Site of PBL	Histology of carcinoma	Size of PBL/carcinoma (mm)	Lymph node metastasis	Relationship between PBL and carcinoma	Remarks
1 [11]	49/F	Diffuse, mixed cell type, B-cell type	Left	IDC	50 × 45/unknown (not palpable)	Absent	Contralateral	-
2 [1]	62/F	B-cell NHL, diffuse high grade	Right	IDC	28/9	Absent	Contralateral	*
3 [12]	62/F	DLBCL	Right	IDC	29 × 28/13 × 10	Absent	Ipsilateral	-
4 [13]	53/F	MALT lymphoma	Left	IDC	25/25	PBL	Ipsilateral, colliding with each other	-
5 [14]	57/F	MALT lymphoma	Right	IDC + DCIS	Unknown (palpable)/8 right + 12 left	PBL	Ipsilateral, both in the same quadrant	-
6 [15]	47/F	B-cell NHL	Right	IDC	50 × 40 × 40/50 × 40 × 40	Absent	Ipsilateral, adjacent to each other	-
7 [16]	79/F	Large B-cell lymphoma of follicular cell origin	Bilateral	IDC	Both unknown (palpable)	Absent	Ipsilateral distance: 9 mm	†
8 [17]	66/F	DLBCL	Right	DCIS	20/unknown (palpable)	Absent	Ipsilateral distance: within 2 cm	-
Present case	82/F	DLBCL	Left	ILC	25 × 15/17 × 7	Carcinoma	Ipsilateral	‡

*Synchronous triple tumors, with bilateral Brenner tumors of the ovary. †Mouse mammary tumor virus sequences were identified. ‡The carcinoma occurred from the accessory mammary gland and posterior rectal cancer was diagnosed. DCIS, ductal carcinoma in situ; DLBCL, diffuse large B-cell lymphoma; F, female; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; MALT, mucosa-associated lymphoid tissue; NHL, non-Hodgkin lymphoma; PBL, primary breast lymphoma.

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