Table 1

Immunohistochemical analysis of intramuscular lipomas.

Case

Age (year)

Gender

Location

Histological type

Atrophic muscle fiber*

Cathepsin-D

1

57

M

sternocleidomastoideus

infiltrative

slow-dominant atrophy

+

2

65

M

rectus femolis

infiltrative

slow-dominant atrophy

+

3

48

M

adductor longus

infiltrative

slow-dominant atrophy

+

4

43

M

vastus medialis

infiltrative

slow-dominant atrophy

+

5

71

M

trapezius

infiltrative

slow-dominant atrophy

+ +

6

64

F

vastus lateralis

infiltrative

fast-dominant atrophy

+ +

7

71

F

tensor fascia lata

infiltrative

fast-dominant atrophy

+

8

37

F

deltoideus

infiltrative

fast-dominant atrophy

+

9

47

F

latissimus dorsi

infiltrative

fast-dominant atrophy

+ +

10

66

F

deltoideus

infiltrative

fast-dominant atrophy

+ +

11

48

F

vastus medialis

infiltrative

non-dominant atrophy

+ +

12

59

F

brachioradialis

infiltrative

non-dominant atrophy

+

13

51

F

vastus medialis

infiltrative

non-dominant atrophy

+

14

43

F

longissimus thoracics

infiltrative

non-dominant atrophy

+ +

15

49

M

sartorius

infiltrative

non-dominant atrophy

+ +

16

15

F

rectus femolis

well-circumscribed

slow-dominant atrophy

+

17

54

F

levator scapulae

well-circumscribed

non-dominant atrophy

+

18

3

M

paravertebral muscle

well-circumscribed

-

-

19

57

F

sartorius

well-circumscribed

-

-

20

43

F

rhomboideus

well-circumscribed

-

-

21

21

F

hypotener

well-circumscribed

-

-

22

51

M

rectus femolis

well-circumscribed

-

-

*: Immunohistochemical evaluation using troponin T and SERCA -: Impossible specimens to evaluate immunohistochemically because of no muscle tissue +: Involving muscle tissues are positive to cathepsin-D. ++: Muscle tissues are stained with cathepsin-D around small fatty vacuoles or nuclear chain.

Mori et al. BMC Musculoskeletal Disorders 2004 5:20   doi:10.1186/1471-2474-5-20