<prompt> Prescence erythema nodosum indicates:TuberculosissarcoidosisMalignanciesall the above  <response>: Ans D all the above Ref IADVL Dermatology Pg 1203 T 35.4Causes of erythema nodosumBacterial - streptococcal infections,tuberculosis,mycoplasma,LGV,salmonella,leptospirosis,CampylobacterFungal -histoplasmosis,blastomycosis,coccidiodomycosisParasitic-toxoplasmaViral -hep BDrugs- sulfonamide,bromides,iodides,sulfonylureas,OCP.Malignancies-HL,NHL,AMLSarcoidosis, inflammatory bowel disease 