ABSTRACT
A salivary gland anlage tumour [SGAT] is a very rare type of benign tumour that usually presents in early infancy with respiratory distress which is exacerbated upon feeding. We report a full-term male neonate who was referred to the Al Nahdha Hospital, Muscat, Oman, in 2015 with severe neonatal respiratory distress due to a nasopharyngeal obstruction immediately after birth. Computed tomography and magnetic resonance imaging revealed a well-circumscribed mass in the nasopharynx, without intracranial extension. Histopathological analysis of the lesion confirmed a diagnosis of SGAT. Following excision of the tumour, the postoperative period was uneventful. No recurrence was observed over the next two years. This case report highlights the importance of the early recognition of this extremely rare and potentially life-threatening, yet easily curable, condition
ABSTRACT
Spring chickens were used for feeding Argus persicus [females] daily over one week during both winter and summer seasons. Acquired resistance to ticks was monitored by the failure of ticks to replenish a blood meal from chickens bitten repeatedly by the infesting ticks during winter and summer seasons, measurements of anti-tick activity in the chicken sera and detection of changes in their serum proteins. Chickens were bled after the 4th feeding, during the 1st, 2nd, 3rd and 4th weeks post-feeding. The titer of anti-tick antibody was determined in the chicken sera by an enzyme linked immunosorbent assay [ELISA] technique. The change in sera protein bands after Argas persicus female repeated feeding was studied by the use of 10% SDS polyacrylamide gel electrophoresis. The results showed that the non- feeding percentage in A. persicus was significant in both winter and summer seasons. The highest concentration of antibodies against A. persicus was detected after the fourth feeding and the lowest titer was reported in sera collected after the fourth week in both seasons. Infested chicken serum proteins electrophoresis showed different patterns of separation from the non-infested chickens. The protein bands of the non-infested chicken sera had 5 and 10 bands in the winter and summer seasons; but in infested chicken sera, it ranged between 12-17 and 14-18 bands in winter and summer seasons, respectively