Medicolegal importance of inca bone in forensic.

Skull is usually available human bone for establishing personal identity. Presence of Inca bone in human skull is one such feature that may be identified on radiological examination and if earlier recorded help in establishing the identity of deceased. Complete division of membranous and cartilaginous part of occipital bone by a transverse suture extending between the two lambdoid sutures at the level of highest nuchal line above the external occipital protuberance, results in rare cranial variation presenting as Inca bone.During medicolegal examination of one male skull at Madhya Pradesh Medicolegal Institute Bhopal, presence of Inca bone was found. The interparietal bone is formed by a part of the squamous occipital bone bounded by two lambdoid sutures on two sides and additional longitudinal suture on both sides between lambdoid suture and external occipital protuberance forming diamond shaped Os Incae Centrale that can also be considered as intra-occipital bone. Such rare findings have significant anthropological and embryological basis. Specific anatomical feature if earlier documented in the clinico-radio-pathological reports of the deceased provides opportunity for establishing the identity.

Ultrasonographic assessment of foetal age using biparietal diameter and femoral length

The foetuses of 886 pregnant females who were sure of their date of last menstrual period [LMP], had regular previous menstrual cycles and had no chronic/systemic illness, were studied. For biparietal diameter [BPD] "outer to inner" and for femoral length [FL] "metaphysis to metaphysis" approach was used. Only those foetuses were included in the study who had a cephalic index between 75 and 85 and an FL/BPD ratio between 70 and 86. A number of 591 patients were followed up to delivery. Out of these, 505 patients met the criterion of spontaneous delivery within 2 weeks of the expected date of delivery counted from LMP. Results form these patients were plotted in graph form and a scattergram prepared. After necessary averaging, optimum smoothed curves and then separate tables were prepared. An average BPD of 9.3 cm and an average FL of 7.2 cm were noted against a 40 weeks gestation. On comparing with a number of foreign studies it was found that measurements carried out at Tokyo University [1988] were closest to those of this study

Convexity hyperostosing meningioma en plaque: a case report.

A case of hyperostosing meningioma en plaque at convexity of the cranial vault was presented. Reviewing the literature showed the rarity of this particular tumor. This is the first report in Thailand.