Erythema nodosumhttps://en.wikipedia.org/wiki/Erythema_nodosum
Erythema nodosum is 'n inflammatoriese toestand wat gekenmerk word deur ontsteking van die vetselle onder die vel, wat lei tot sagte rooi knoppies of knoppe wat gewoonlik op beide skenkels gesien word.

Erythema nodosum word klinies gediagnoseer. ’n Biopsie kan geneem en mikroskopies ondersoek word om ’n onsekere diagnose te bevestig. ’n Borskas X-straal moet uitgevoer word om longsiektes, veral sarkoïdose en tuberkulose, uit te sluit.

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  • Dit kom voor as 'n pynlike eritematiese knop op die been.
  • Erythema nodosum in Tuberkulose. Tuberkulose is een van die belangrike oorsake van Erythema nodosum
References Erythema Nodosum: A Practical Approach and Diagnostic Algorithm 33683567 
NIH
Erythema nodosum is die mees algemene tipe pannikulitis, gekenmerk deur pynlike rooi knoppies, wat hoofsaaklik op die onderbene voorkom. Die presiese oorsaak daarvan bly onbekend, maar dit blyk te wees as gevolg van 'n oordrewe reaksie op verskeie snellers. Alhoewel die oorsprong daarvan dikwels onseker is, is dit noodsaaklik om ander onderliggende toestande uit te sluit voordat primary erythema nodosum gediagnoseer word. Dit kan die aanvang van sistemiese siektes soos infeksies, inflammasie, kanker of reaksies op medikasie aandui. Algemene snellers sluit strep infections, tuberculosis, sarcoidosis, Behçet's disease, inflammatory bowel disease, certain medications, pregnancy in.
Erythema nodosum is the most common form of panniculitis and is characterized by tender erythematous nodules mainly in the lower limbs on the pretibial area. The exact cause of erythema nodosum is unknown, although it appears to be a hypersensitivity response to a variety of antigenic stimuli. Although the etiology is mostly idiopathic, ruling out an underlying disease is imperative before diagnosing primary erythema nodosum. Erythema nodosum can be the first sign of a systemic disease that is triggered by a large group of processes, such as infections, inflammatory diseases, neoplasia, and/or drugs. The most common identifiable causes are streptococcal infections, primary tuberculosis, sarcoidosis, Behçet disease, inflammatory bowel disease, drugs, and pregnancy.
 Panniculitis in Children 34449587 
NIH
Panniculitis verwys na 'n diverse stel inflammatoriese toestande wat die vetweefsel onder die vel beïnvloed. Hierdie toestande is ongewoon by kinders. Panniculitis kan óf die hoofprobleem in 'n sistemiese toestand wees óf 'n reaksie sekondêr tot faktore soos infeksie, besering of sekere medikasie. Ongeag die oorsaak, die meeste soorte panniculitis toon soortgelyke simptome, insluitend pynlike, rooi knoppies onder die vel.
Panniculitides form a heterogenous group of inflammatory diseases that involve the subcutaneous adipose tissue. These disorders are rare in children and have many aetiologies. As in adults, the panniculitis can be the primary process in a systemic disorder or a secondary process that results from infection, trauma or exposure to medication. Some types of panniculitis are seen more commonly or exclusively in children, and several new entities have been described in recent years. Most types of panniculitis have the same clinical presentation (regardless of the aetiology), with tender, erythematous subcutaneous nodules.
 Erythema nodosum - a review of an uncommon panniculitis 24746312
Panniculitis , 'n ontsteking van die vetlaag onder die vel, is 'n seldsame toestand wat gewoonlik as geswelde knoppe of kolle verskyn. Erythema nodosum (EN) is die mees algemene tipe, wat dikwels deur verskeie faktore veroorsaak word. Alhoewel ongeveer 55% van die gevalle geen duidelike oorsaak het nie, sluit algemene snellers infeksies, medikasie, sekere siektes soos sarkoïdose en inflammatoriese dermsiekte, swangerskap en kanker in. EN kom gewoonlik voor by tieners en jong volwassenes, meer dikwels by vroue. Dit word dikwels voorafgegaan deur 'n algemene gevoel van siekte wat een tot drie weke duur, met simptome soos koors en boonste respiratoriese probleme. Dan verskyn rooi knoppies, gewoonlik aan die buitekant van arms en bene, wat pyn veroorsaak. EN se presiese oorsaak word nie ten volle verstaan ​​nie, maar dit word geglo dat dit immuunkomplekse in klein bloedvate van die vetlaag behels, wat tot inflammasie lei. Tipies toon 'n biopsie inflammasie in die vetlaag sonder skade aan bloedvate. Selfs sonder spesifieke behandeling vir die onderliggende oorsaak, los EN dikwels op sy eie op. So, die meeste pasiënte benodig slegs ondersteunende sorg vir hul simptome.
Panniculitis, an inflammation of the fat layer under the skin, is a rare condition usually showing up as swollen nodules or patches. Erythema nodosum (EN) is the most common type, often triggered by various factors. While around 55% of cases have no clear cause, common triggers include infections, medications, certain diseases like sarcoidosis and inflammatory bowel disease, pregnancy, and cancer. EN usually appears in teens and young adults, more often in females. It's often preceded by a general feeling of illness lasting one to three weeks, with symptoms like fever and upper respiratory issues. Then, red nodules appear, usually on the outer sides of arms and legs, causing pain. EN's exact cause isn't fully understood, but it's believed to involve immune complexes in small blood vessels of the fat layer, leading to inflammation. Typically, a biopsy shows inflammation in the fat layer without damage to blood vessels. Even without specific treatment for the underlying cause, EN often resolves on its own. So, most patients need only supportive care for their symptoms.