这种单一的脓肿可能是血行播散的。

This lone abscess was probably hematogenous in origin.

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该型是结核和转移性疾病血源性播散的表现。

This pattern is a manifestation of hematogenous spread of tuberculosis and metastatic disease.

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指病原体从传染源向周围播散的范围较小或者单个疫源地。

Epidemic-stricken spots refer to smaller areas within which pathogens spread from the source of infection or to a single focus of infection.

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