<prompt> A young lady presented with bilateral nodular lesions on shins. She was also found to have bi-lateral hilar lymphadenopathy on chest X-ray. Mantoux test reveals indurations of 5 mms. Skin biopsy would reveal:Non caseating granulomaVasculitisCaseating granulomaMalignant cells  <response>: The presence of bilateral nodules on the shin ERYTHEMA NODOSUM; bilateral hilar lymphadenopathy and negative Mantoux test in a female patient point to a probable diagnosis of Sarcoidosis. The skin lesions characteristically show the presence of non - caseating granulomasQ in sarcoidosis. 