Table 2 Clinical features of each patient
| Â | Patient 1 | Patient 2 | Patient 3 | Patient 4 |
|---|---|---|---|---|
Mutation | A_T at 275 | G_A at 1514 | A_G at 1790 | T_C at 4871 |
| Â | E92V | R505Q | H597R | L1624P |
Age (years) | 1 | 13 | 4 | 2 |
Clinical features | Â | Â | Â | Â |
 Major criteria |  |  |  |  |
Facial angiofibromas or forehead plaque | N | Y | Y | Y |
Nontraumatic ungual or periungual fibromas | N | N | N | N |
Hypomelanotic macules (three or more) | Y | N | Y | Y |
Shagreen patch (connective tissue nevus) | N | N | Y | N |
Multiple retinal nodular hamartomas | N | ? | ? | N |
Cortical tuber | Y | N | Y | Y |
Subependymal nodule | ? | N | Y | Y |
Subependymal giant cell astrocytoma | N | N | N | N |
Cardiac rhabdomyoma, single or multiple | N | ? | N | Y |
Lymphangioleiomyomatosis | N | ? | N | N |
Renal angiomyolipoma | N | ? | N | N |
 Minor criteria |  |  |  |  |
Multiple pits in dental enamel | N | ? | ? | N |
Hamartomatous rectal polyps | ? | ? | ? | ? |
Bone cysts | ? | ? | ? | ? |
Cerebral white matter radial migration lines | ? | N | N | N |
Gingival fibromas | N | N | N | N |
Nonrenal hamartoma | N | N | N | N |
Retinal achromatic patch | N | ? | ? | N |
Confetti skin lesions | N | N | N | N |
Multiple renal cysts | N | ? | N | N |
 Other features |  |  |  |  |
Intellectual disability | N | Y | Y | Y |
Seizures | Y | Y | Y | Y |