An Unusual Case of Extranodal Diffuse Large B-Cell Lymphoma Infiltrating Skeletal Muscle: A Case Report and Review of the Literature

Table 2

Clinicopathologic characteristics of 86 patients from the literature with reported muscle lymphoma.

Patients,	86
Sex, male/female	52/34
Age median (range)	57 (5–90)
<18 years	5
Histology	Patients, n (%)
DLBCL	61 (70.9)
ALCL	6 (6.9)
BL	4 (4.7)
FL	4 (4.7)
PTCL	4 (4.7)
Indolent SBCL, type not specified	3 (3.5)
NK/TCL	2 (2.3)
CLL	1 (1.2)
LBL	1 (1.2)
MCL	1 (1.2)
Location	Patients, n (%)
Lower extremities	36 (41.9)
Upper extremities	12 (13.9)
Back	8 (9.3)
Head/face	7 (8.1)
Shoulder	7 (8.1)
Pelvic	6 (6.9)
Paraspinal	5 (5.8)
Rectal/anal	5 (5.8)
Gluteal	5 (5.8)
Chest	3 (3.5)
Abdominal wall	2 (2.3)
Neck	2 (2.3)

ALCL = anaplastic large T-cell lymphoma; BL = Burkitt lymphoma; CLL = chronic lymphocytic leukemia; DLBCL = diffuse large B-cell lymphoma; FL = follicular lymphoma; LBL = lymphoblastic lymphoma; MCL = mantle cell lymphoma; NK/TCL = NK/T-cell lymphoma; PTCL = peripheral T-cell lymphoma; SBCL = small B-cell lymphoma.
3 cases with ALK+/2 cases ALK−/1 case ALK not reported.