Suarez Peņaranda, Jose Manuel Granuloma annulare of the penis: a uncommon location for an usual disease. [electronic resource] - The American Journal of dermatopathology Jun 2011 - e44-6 p. digital Publication Type: Journal Article ISSN: 1533-0311 Standard No.: 10.1097/DAD.0b013e3181e8b4c3 doi Subjects--Topical Terms: AdolescentCollagen--metabolismDiagnosis, DifferentialGranuloma Annulare--diagnosisHumansLichen Planus--diagnosisMalePenile Diseases--diagnosisPenile Neoplasms--diagnosisPenis--metabolismSexually Transmitted Diseases--diagnosis