A study of the buffy coat leucocyte aggregation test.
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Cell Aggregation↗
Biomedical subjects
W H Chang
Publications and source records attributed to W H Chang.
Becker's melanosis: an ultrastructural study.
Becker's melanosis is an uncommon condition characterized by hypertrichosis, hyperpigmentation of the epidermis, dermal melanophages and absence of nevus cells. Ultrastructural examination of such a melanotic lesion from a young white man revealed giant melanosomes. In addition, normal-sized melanosomes were found singly in the keratinocytes of the involved skin. Dermal venules were surrounded by multiple layers of basement membrane.
Adult↗
Carcinoma in a nipple preserved by heterotopic autoimplantation.
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Breast Neoplasms↗
Partial palatal split palatoplasty.
A partial palatal split technique is described for use with superiorly based pharyngeal flap palatoplasties. This procedure allows (1) increased facility in dissection, (2) precision in the design of the flap for lateral port control, and (3) construction of a one-piece nasomucosal lining flap in comparison to the standard complete palatal split technique.
Methods↗
Multiple drug resistance in Pasteurella multocida and Pasteurella haemolytica from cattle and swine.
The results of antimicrobial susceptibility testing on 262 strains of Pasteurella multocida and 141 strains of Pasteurella haemolytica isolated from cattle and swine from 1971 to 1974 were analyzed for patterns of resistance to streptomycin, penicillin, tetracycline, and chloramphenicol, using a modified Kirby-Bauer procedure. Resistance was recorded for 80.5% of the isolants of P multocida and 92.2% of those of P haemolytica. Resistance to streptomycin was most frequent, followed by resistance to penicillin and tetracycline. Most cultures of P multocida and P haemolytica were susceptible to chloramphenicol. There were 9 patterns of resistance with the aforementioned antibiotics. The combinations, streptomycin and penicillin and streptomycin and tetracycline, each accounted for approximately 10% of the resistance patterns of P multocida. Approximately half of the 14 isolants of P haemolytica were resistant to the combination of streptomycin, penicillin, and tetracycline. These observations underscore the need for antimicrobial susceptibility testing of clinical isolants of P multocida and P haemolytica.
Animals↗