1.PRE-AURICULAR SINUS: AN UNCOMMON PRESENTATION
WSJ Ng ; YK Chew ; KL Tan ; AW Chong
Malaysian Family Physician 2011;6(1):32-33
An infected pre-auricular sinus presenting as a post-auricular swelling is commonly misdiagnosed as an infected dermoid or
sebaceous cyst. It may even mimic a mastoid abscess leading to further unwarranted investigations and interventions. We
present a case of a 25-year-old Malay man who was initially diagnosed with recurrent infected dermoid cyst. At presentation,
a right post-auricular inflamed swelling was noted with an overlying old incision and drainage scar. An auricular pit was found
at the crus of helix. Using a blunt probe inserted along the sinus tract pus was drained without the need for further surgical
incision. Six weeks after the acute episode, patient underwent excision of the pre-auricular sinus with no evidence of recurrence
at three months follow up. Awareness by the attending physician of this ‘variant type’ of pre-auricular sinus at patient’s first
presentation may negate the need for unnecessary incision and drainage which may subsequently impact the outcome of
surgical excision and reduce the risk of recurrence.
2.Methods used for reconstruction in aggressive bone tumours: an early experience.
Pan KL ; Ting SS ; Mohamad AW ; Lee WG ; Wong CC ; Rasit AH
The Medical Journal of Malaysia 2003;58(5):752-757
Improvements in the overall treatment of patients with aggressive, large tumours involving the bone have made it possible to preserve and salvage limbs instead of amputating them. Each patient is unique in his clinical presentation and social circumstance. The different reconstructive options available allow us to choose the most appropriate method suited to the particular patient and with minimal delay, even when resources are limited. The patient and the relatives actively participate in the choice. The early experience of the different techniques for reconstructing these bone defects at our hospital are presented in this paper.
Bone Neoplasms/*surgery
;
Reconstructive Surgical Procedures/*methods
3.Effect of powder calcination on the sintering of hydroxyapatite.
Tan CY ; Ramesh S ; Aw KL ; Yeo WH ; Hamdi M ; Sopyan I
The Medical Journal of Malaysia 2008;63 Suppl A():87-88
The sintering behaviour of synthesized HA powder that was calcined at various temperatures ranging from 700 degrees C to 1000 degrees C was investigated in terms of phase stability, bulk density, Young's modulus and Vickers hardness. The calcination treatment resulted in higher crystallinity of the starting HA powder. Decomposition of HA phase to form secondary phases was not observed in all the calcined powders. The results also indicated that powder calcination (up to 900 degrees C) prior to sintering has negligible effect on the sinterability of the HA compacts. However, powder calcined at 1000 degrees C was found to be detrimental to the properties of sintered hydroxyapatite bioceramics.