Biomedical subjects
Publications and source records attributed to S K Chow.
We report a case of primary tuberculous tracheitis in an otherwise healthy woman who presented with cough and stridor due to diffuse tracheal narrowing by tuberculous pseudomembranous lesion, which resolved completely with antituberculosis chemotherapy.
Pneumatocele of the infratemporal fossa caused by herniation of air through a break in the wall of the aerated maxillary sinus is rare. Two cases are reported: one arising from a maxillary pneumocele with a defect in the wall of the zygomatic recess and one associated with maxillary radionecrosis with pathological fracture complicated by infection. Computed tomography can clearly demonstrate the extent of the pneumatocele, and can show the maxillary pathology and the causative bony defect in the sinus. Treatment depends on the clinical conditions of the patient, the pathology and the size of the bony defect.
The clinical, radiologic, and operative examination of two patients with the Tessier number 9 cleft has allowed the first complete description of this, the rarest of the rare craniofacial clefts. Soft-tissue disruption extends from the lateral third of the upper eyelid through a distorted lateral end of the eyebrow to the temporal scalp, with an associated hairline indicator. The skeletal disturbance similarly radiates superolaterally from the superolateral orbital rim across the greater wing of the splenoid to the upper squamous temporal. The three-dimensional extent of the bony disruption is associated with distortion of the cranial base and calvaria above.
Small benign lesions occurring in the mandible, such as dental cysts or adamantinoma, are treated adequately by the dental surgeon using an intraoral approach and curettage (Brånemark et al., 1975). However, larger and recurrent lesions are better treated via the submandibular route (Boyne, 1969). After lesion clearance, the bone gap in the mandible needs to be bridged properly to avoid disabling functional and cosmetic results. This paper describes a modified conventional method of reconstruction which is simple and effective and gives excellent long-term results.
There were 578 patients with more than 728 congenital anomalies of the upper limb seen in our center over a 10-year period. All anomalies were classified with the system recommended by the International Federation of Societies for Surgery of the Hand (IFSSH). Our results differ from other reported series with group III duplication anomalies being most common (35.9%) followed by group II (31.3%); group I (12.2%); group VII (9.3%), group VI (6.5%), group V (4.3%), and group IV (0.5%). Variations among different ethnic groups are significant although some apparent differences can also result from different patient referral patterns and method of classification. The classification adopted by the IFSSH was found to be practical in the majority of cases. However, difficulties were encountered in the classification of multiple anomalies; group VII cases and the complex spectrum of atypical cleft hand, brachysyndactyly, and transverse arrests. In addition, many common anomalies had not been included in the classification.
A case is reported of a 15 years old Chinese female with Larsen syndrome exhibiting many characteristic facial and skeletal features plus hitherto unreported orofacial anomalies including delayed dental development; hypodontia affecting all the permanent canines, second and third molars, maxillary lateral incisors and second premolars; morphological anomalies of the maxillary first premolars and molars; a class 3 skeletal pattern and reduced upper facial height. Cephalometric radiographs showed the skull bones to have an appearance similar to that of osteopetrosis.