Biomedical subjects
Publications and source records attributed to N Marwah.
Dilaceration of permanent successors is one of the most common complications of trauma to the deciduous teeth. It is advisable to keep these patients under observation post-trauma and to consult an orthodontist at an early stage to prevent unfavorable sequelae. Presented here is a typical case of dilaceration.
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Gastric teratoma accounts for less than 1% of all teratomas occurring in children, usually males. These tumors may be benign or malignant and complete excision of the tumor in either case carries a good prognosis. This rare case is an addition to the few cases of gastric teratomas in females reported in world literature and presenting as an exophytic & endophytic growth.
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An 8-year-old male presented with an acute abdomen. Exploration revealed bilious ascites, oedematous pancreatitis with areas of necrosis, and omentum showing patches of fat necrosis. The common bile duct and almost all of the common hepatic duct were gangrenous and had sloughed, with bile leaking from the junctional stump of the right and left hepatic ducts. The patient was managed successfully by Roux-en-Y hepaticojejunostomy. This is a rare case showing necrosis and sloughing of the extrahepatic bile ducts in acute pancreatitis.
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A case of juvenile (calcifying) aponeurotic fibroma (JAF) arising in the neck of a 5-year-old female is presented. The lesion was misdiagnosed as fibrous hamartoma of infancy (FHI) on a superficial biopsy prior to total excision of the mass. Only one instance of JAF of the neck has previously been reported; the tumor is usually located in the distal extremities and often recurs following excision. FHI occurs most frequently at and about the axilla and shoulder, and does not recur in most instances.
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A set of synthetic oligodeoxyribonucleotide (oligo) probes, OAT18, OMS1 and OAT24 carrying the (TGG)6, (GGAT)4 and (GACA)6 repeat motifs, respectively, was used to analyze the variable number tandem repeat (VNTR) loci in the genomes of Oncorhyncus mykiss (rainbow trout; family Salmonidae), Oreochromis mossambicus and Oreochromis niloticus (both tilapia belonging to family Cichlidae). Of all the oligos and enzymes (AluI, MboI, HaeIII and HinfI) used, the OAT18/HaeIII combination was found to be most informative for detecting DNA fingerprinting in rainbow trout, while the OMS1/MboI combination gave the most informative pattern for the Or. niloticus genome. In the rainbow trout genome, all three repeat loci were hypervariable, revealing varying degrees of polymorphism as compared to tilapia genomes. Startlingly, the OAT24 probe did not cross-hybridize with Or. mossambicus and lamprey salmon (Lampertra japonica) although GACA repeats have been reported to be evolutionarily conserved in all eukaryotes studied thus far. Cluster analysis with respect to GGAT repeat loci revealed that Or. niloticus diverged from Or. mossambicus before the separation of On. mykiss, suggesting the relatively recent evolution of these loci in rainbow trout, compared to the tilapia genomes. These highly informative probes will find application in various genetic studies of fishes.
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Managing the anxiety of pediatric dental patient has long been the purview of dentists over many years. Various techniques have been used with moderate and variant success rates over the last few years. The main aim of this study was to ascertain if music distraction is an effective means of managing anxiety in pediatric dental patients. Forty children aged between 4 and 8 years were selected for the study. The assessment of anxiety was done using Venham's picture test, Venham's anxiety rating scale, pulse rate, and oxygen saturation during different treatment visits. The values were statistically analyzed and it was concluded that audio distraction did decrease the anxiety level in pediatric dental patients, but not to a very significant level.
A case of hydatid disease of lung and liver is described. The patient was investigated because of a circumscribed shadow in the right lung on chest skiagram. Another cystic shadow was picked up in the right lobe of liver on ultrasound examination. Both the cysts in right lung and liver were removed simultaneously through a right thoracophrenotomy. Emphasis is being laid on the utilization of single stage thoracotomy as an operative procedure of choice for hydatid cysts of right lung and liver.
Surgical emphysema of abdominal and thoracic wall, along with features of intestinal obstruction, has not been reported as a complication of strangulated femoral hernia. We report a 31-year-old woman with such a presentation.