Ossified costochondral and chondrosternal joints are often seen in radiological pictures and may be associated with some syndromes. Five such bony specimens available in our lab was studied and literature reviewed to see its prevalence, the process of ossification and if possible to evaluate the consequences of such a rigid thoracic inlet. A quick review showed that there is more to ossification than that given in standard textbooks and that it may have a role to play in sex dimorphism and age determination. This subject may definitely be of academic interest for research by postgraduate students in Anatomy.