This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Skin
[{'content': 'Prescence erythema nodosum indicates: \nSelect and explain. \nA. Tuberculosis, B. sarcoidosis, C. Malignancies, D. all the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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', 'role': 'assistant'}]