Cutaneous actinomycosis

Multiple erythematous nodules and plaque with discharge over the right elbow joint
Specialty| Dermatology

Cutaneous actinomycosis is a chronic disease that affects the deep subcutaneous tissue of the skin. Caused by an anaerobic, Gram-positive, filamentous type of bacteria in the genus Actinomyces,[1]: 270 invasion of the soft tissue leads to the formation of abnormal channels leading to the skin surface (external sinus tracts) that discharge pale yellow sulfur granules.[2]

This disease is uncommon, and has non-specific clinical features, making it difficult to diagnose.[3]

Cervicofacial, pulmonary/thoracic and gastrointestinal forms exist, yet cervicofacial disease accounts for two-thirds of reported infections.[4]

## See also[edit | edit source]

* Skin lesion

## References[edit | edit source]

1. ↑ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.
2. ↑ Patil D, Siddaramappa B, Manjunathswamy BS, Pandit AM, Dastikop S, Fernandes C, Kutre S, Angolkar M (2008). "Primary cutaneous actinomycosis". International Journal of Dermatology. 47 (12): 1271–3. doi:10.1111/j.1365-4632.2008.03854.x. PMID 19126014. S2CID 205395085.
3. ↑ Roy D, Roy PG, Misra PK (2003). "An interesting case of primary cutaneous actinomycosis". Dermatology Online Journal. 9 (5): 17. PMID 14996390. Archived from the original on 2012-10-02. Retrieved 2021-06-05.
4. ↑ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. pp. 1103–4. ISBN 978-1-4160-2999-1.

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Gram-positive bacterial infection: Actinobacteria

Actinomycineae|

| Actinomycetaceae|

* Actinomyces israelii
* Actinomycosis
* Cutaneous actinomycosis
* Tropheryma whipplei
* Whipple's disease
* Arcanobacterium haemolyticum
* Arcanobacterium haemolyticum infection
* Actinomyces gerencseriae

|

Propionibacteriaceae|

* Propionibacterium acnes

Corynebacterineae|

| Mycobacteriaceae|

| M. tuberculosis/
M. bovis|

* Tuberculosis: Ghon focus/Ghon's complex
* Pott disease
* brain
* Meningitis
* Rich focus
* Tuberculous lymphadenitis
* Tuberculous cervical lymphadenitis
* cutaneous
* Scrofuloderma
* Erythema induratum
* Lupus vulgaris
* Prosector's wart
* Tuberculosis cutis orificialis
* Tuberculous cellulitis
* Tuberculous gumma
* Lichen scrofulosorum
* Tuberculid
* Papulonecrotic tuberculid
* Primary inoculation tuberculosis
* Miliary
* Tuberculous pericarditis
* Urogenital tuberculosis
* Multi-drug-resistant tuberculosis
* Extensively drug-resistant tuberculosis

|

M. leprae|

* Leprosy: Tuberculoid leprosy
* Borderline tuberculoid leprosy
* Borderline leprosy
* Borderline lepromatous leprosy
* Lepromatous leprosy
* Histoid leprosy

Nontuberculous|

| R1:|

* M. kansasii
* M. marinum
* Aquarium granuloma

|

R2:|

* M. gordonae

R3:|

* M. avium complex/Mycobacterium avium/Mycobacterium intracellulare/MAP
* MAI infection
* M. ulcerans
* Buruli ulcer
* M. haemophilum

R4/RG:|

* M. fortuitum
* M. chelonae
* M. abscessus

Nocardiaceae|

* Nocardia asteroides/Nocardia brasiliensis/Nocardia farcinica
* Nocardiosis
* Rhodococcus equi

Corynebacteriaceae|

* Corynebacterium diphtheriae
* Diphtheria
* Corynebacterium minutissimum
* Erythrasma
* Corynebacterium jeikeium
* Group JK corynebacterium sepsis

Bifidobacteriaceae|

* Gardnerella vaginalis

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