Table II.
Reported cases of SR of thymoma.
| Symptoms | Pathological findings | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | Author | Age, years | Gender | Chest pain | Fever | Masaoka stage | Necrosis | WHO type | Size before SR, mm | Pleural effusion | CYFRA, ng/ml | Size after SR, mm | Reduction rate, % | Duration of SR | Refs. |
| 1 | Okagawa et al | 31 | F | + | + | II | + | B2 | 60×55×50 | + | ND | 45×40×30 | 67.3 | 3 weeks | (7) |
| 2 | Yutaka et al | 47 | M | + | ND | I | + | B3 | 80×70×60 | + | 40 | 60×30×20 | 89.3 | 1 month | (6) |
| 3 | Fukui et al | 43 | F | + | ND | II | + | B2 | 34×34×27 | + | ND | 14×12×8 | 95.7 | 1.5 months | (8) |
| 4 | Fukui et al | 32 | F | + | + | IV | + | B2 | 100×95×79 | + | ND | 73×69×49 | 63.1 | 1 week | (8) |
| 5 | Present case | 30 | M | + | + | II | + | B2 | 110×60×50 | + | 12.7 | 80×36×30 | 73.8 | 1 month | – |
WHO, World Health Organisation; M, male; F, female; ND, not described; SR, spontaneous regression; CYFRA, cytokeratin fragment.