hematogenous

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Related to Haematogenous: hematogenous, haematogenous spread

hematogenous

[¦hēm·ə¦täj·ə·nəs]
(physiology)
Pertaining to the production of blood or of its fractions.
Carried by way of the bloodstream.
Originating in blood.
References in periodicals archive ?
Acute multifocal haematogenous osteomyelitis in children.
41 Tuberculosis can involve the soft tissues by extension from bone, synovial lining of joints or tendon sheaths; by direct inoculation; and, rarely, by haematogenous dissemination.
These conditions usually occur in the first 4 decades of life and result from spread from contiguous structures (oral cavity, sinuses, middle ear), either directly or by retrograde venous thrombosis, or haematogenous spread in patients with valvular heart disease (infective endocarditis), cyanotic congenital heart disease and chronic suppurative lung disease (bronchiectasis).
Mycobacterium tuberculosis, the most common pathogenic organism, can manifest itself within the abdomen via haematogenous spread from a pulmonary primary, transmural invasion of the bowel following ingestion, reactivation of dormant disease or tuberculous salpingitis.
Tendons sheaths may be involved secondary to involvement of underlying bones or due to gravitational spread or there may be a primary haematogenous tubercular infection of sheaths, which may spread to the underlying bone (3).
Batey (1986) has described the pathogenesis of Caseous Lymphadenitis in Sheep and Goat and mentioned that the progress of Caseous Lymphadenitis in most primary wound infection involves lymphatic and haematogenous dissemination followed by secondary infection of lymph node and various visceral organs by which is further followed by elimination of infection which is represented by formation of Caseous lesions.
SSIs may take either of two forms; the most common is colonisation of the operative field during surgery, and an alternative source is haematogenous seeding during sepsis/bacteraemia (Wilson et al 1975).
We conjecture that drug-induced immunosuppression might have permitted haematogenous dissemination that could have led to more extensive cutaneous lesions had he not been promptly diagnosed and treated.
In immunocompromised patients in particular, haematogenous spread of MTB from a primary focus can result in mammary TB.
It has been proposed that it can be spread by ingestion of contaminated food, by swallowing infected sputum, by haematogenous spread from the primary lung focus in childhood with later reactivation, by retrograde lymphatic spread or direct spread from infected organs.
However, even in patients without circulating plasma cells, the haematogenous spread of their lymphoid progenitors has been postulated as a possible mechanism for CNS involvement (6).