推测这种微小球体通过骨髓或脂肪组织的损伤而被释放，并通过骨髓血管窦状隙或小静脉的破裂获得进入循环的通路。
Presumably the microglobules are released by injury to marrow or adipose tissue and gain access to the circulation by rupture of the marrow vascular sinusoids or venules.
当坏死病灶及感染物仍然存留骨内，就会出现慢性骨髓炎，导致感染反复发作，甚至可能间歇性窦道流脓。
Chronic osteomyelitis develops when foci of necrotic and infected material remain within the bone, resulting in recurrent flare-ups of infection, and possibly, an intermittently draining sinus.
一系列的检测，例如骨髓成像或管摄影，可用于检查皮窦深入的程度。
A variety of tests, such as a myelogram or a fistulogram may be undertaken to determine how deep the sinus goes.
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