Table 8.
Histochemical findings of biopsy tissue of patients who did not have classic JDM rash (heliotrope, nail bed capillary changes and Gorton papules)
| Patient number | Deposition of MAC (membrane attack complex) | Perivascular and perifascicular inflammatory Infiltration (The predominantly B cells & CD4+ T cells) | Perifascicular necrosis/ atrophy | Vasculopathic changes in capillaries/reduced capillary number | Myocyte necrosis and regeneration | Special comments |
|---|---|---|---|---|---|---|
| DM1 |
+ |
+ |
+ |
+ |
+ |
|
| DM2 |
_ |
+ |
+ |
+ |
+ |
Received oral steroids for a month before biopsy |
| DM3 |
+ |
+ |
+ |
+ |
+ |
|
| DM4 |
+ |
+ |
+ |
+ |
+ |
|
| DM5 |
+ |
+ |
+ |
+ |
+ |
|
| DM6 | - | + | + | + | + | Received two IV pulse steroids before biopsy |