1. Absence of ears and deafness: 35th - 37th day
2. Absence of arms: 39th - 41st day
3. Phocomelia with 3 fingers: 43rd - 44th day
4. Thumbs with 3 joints: 46th - 48th day.
If thalidomide has been taken throughout the sensitive period, the consequence may be severe defects of ears, arms and legs and of internal malformations, which often led to early death. About 40 per cent of thalidomide victims died before their first birthday.
Check out ScanMan's Notes for an ultrasound photo of a 6wk embryo
By Linda Bren; FDA Consumer Magazine; March-April 2001
The Current Status of Thalidomide in the Management of Multiple Myeloma; Glasmacher A, von Lilienfeld-Toal M; Acta Haematology 2005; 114 Suppliment 1:3-7