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Gas gangrene; Other names: Myonecrosis, [clarification needed] clostridial myonecrosis Photograph before right leg amputation (hemipelvectomy) of a patient with gas gangrene.The right thigh is edematous (swollen) and discoloured with necrotic bullae (large blisters).
These environmental bacteria may enter the muscle through a wound and subsequently proliferate in necrotic tissue and secrete powerful toxins that destroy nearby tissue, generating gas at the same time. A gas composition of 5.9% hydrogen, 3.4% carbon dioxide, 74.5% nitrogen, and 16.1% oxygen was reported in one clinical case. [20]
Treatment is typically to avoid the ulcer getting infected, remove any excess discharge, maintain a moist wound environment, control the edema, and ease pain caused by nerve and tissue damage. Topical antibiotics are normally used to prevent the ulcer getting infected, and the wound or ulcer is usually kept clear of dead tissue through surgical ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 October 2024. Fluid produced by inflammatory infection For other uses, see Pus (disambiguation). Medical condition Pus Eye with conjunctivitis exuding pus Specialty Infectious disease Pus is an exudate, typically white-yellow, yellow, or yellow-brown, formed at the site of inflammation during ...
Unstageable: Full thickness tissue loss in which actual depth of the ulcer is completely obscured by slough (yellow, tan, gray, green or brown) and/or eschar (tan, brown or black) in the wound bed. Until enough slough and/or eschar is removed to expose the base of the wound, the true depth, and therefore stage, cannot be determined.
The name "pyogenic granuloma" is misleading, as it is neither pyogenic or a true granuloma. Rather, it is a capillary hemangioma of lobular subtype, which is why such a lesion is prone to bleeding. [5] It is also not truly pyogenic (pus-producing), as the cause is hormonal or traumatic and has no association with infection or pus production.
Granulation tissue is new connective tissue and microscopic blood vessels that form on the surfaces of a wound during the healing process. [1] Granulation tissue typically grows from the base of a wound and is able to fill wounds of almost any size. Examples of granulation tissue can be seen in pyogenic granulomas and pulp polyps.
It has been known to leave the victim with different colors such as bright red, blue, green, and a rare color change of orange. Deep tissue invasion: Infection may spread deep to the subcutaneous tissue, but rarely involve the bone. [6] Chronic ulceration: Characterised by thick rim of fibrous tissue around the ulcer edges. [6]