43620-4

Actinomyces israelii Ab [Presence] in Serum

Active

Part Description

LP36568-1   Actinomyces israelii
Actinomyces israelii is a species of Actinomyces.

Actinomycosis is most frequently caused by Actinomyces israelii and is sometimes known as the "most misdiagnosed disease," as it is frequently confused with neoplasms. A. israelii is a normal colonizer of the vagina, colon, and mouth. Infection is established first by a breach of the mucosal barrier during various procedures (dental, GI), aspiration, or pathologies such as diverticulitis. The chronic phase of this disease is also known the "classic phase" because the acute, early phase is often missed by health care providers. This is characterized by slow contiguous growth that ignores tissue planes and forms a sinus tract that can spontaneously heal and recur, leading to a densely fibrotic lesion. This lesion is often characterized as "wooden." "Sulfur" granules form in a central purulence surrounded by neutrophils. This conglomeration of organisms is virtually diagnostic of Actinomyces israelii. Oral-cervicofacial disease is the most common form of actinomycosis. It is characterized by a painless "lumpy jaw." Lymphadenopathy is uncommon in this form of the disease. Another form of actinomycosis is thoracic disease, which is often misdiagnosed as a neoplasm, as it forms a mass that extends to the chest wall. It arises from aspiration of organisms from the oropharynx. Symptoms include chest pain, fever, and weight loss. Abdominal disease is another manifestation of actinomycosis. This can lead to a sinus tract that drains to the abdominal wall or the perianal area. Symptoms include fever, abdominal pain, and weight loss. Actinomyces sp. have also been shown to infect the central nervous system in a dog "without history or evidence of previous trauma or other organ involvement."

Pelvic actinomycosis is a rare but proven complication of intrauterine device. In extreme cases pelvic abscess might develop. Treatment of pelvic actinomycosis associated with intrauterine device involves removal of device and antibiotic treatment. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia , Wikipedia

Fully-Specified Name

Component

Actinomyces israelii Ab

Property

PrThr

Time

Pt

System

Ser

Scale

Ord

Method

Additional Names

Long Common Name

Actinomyces israelii Ab [Presence] in Serum

Short Name

A israelii Ab Ser Ql

Display Name

A. israelii Ab Ql (S)

Consumer Name Alpha Get Info

Actinomyces israelii antibody, Blood

Basic Attributes

Class

MICRO

Type

Laboratory

First Released

Version 2.17

Last Updated

Version 2.56 (MIN)

Change Reason

The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.

Order vs. Observation

Both

Language Variants Get Info

Related Names

• A israelii
• ABS
• Aby
• Actino
• Antby
• Anti
• Antibodies
• Antibody
• Autoantibodies
• Autoantibody
• ID
• Infectious Disease
• InfectiousDisease
• Microbiology
• Ordinal
• Point in time
• PR
• QL
• Qual
• Qualitative
• Random
• Screen
• Serum
• SR

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CodeSystem lookup

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=43620-4

LOINC Copyright

Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.