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Background: Mature teratoma is a germinal cell tumor that is commonly found in ovaries and testis. Mature teratoma in the lung region is a rare case. According to the literature there are only 67 cases worldwide starting from 1939 to 2007. There were one cases in Dr. Soetomo general hospital during January 2013 – December 2017. Objective: Mature teratoma in the lung region is a rare case. Presenting in a case report would be beneficial for pathology database Case Presentation: A 19 years old man came to hospital with shortness of breath within 3 months ago. It was followed with hemoptysis, trichoptysis and coughing out tooth. CT Scan examination showed an irregular walled cavity with semisolid component and calcification along with a description of "air cresent sign". In thoracotomy tumor excision obtained multilobulated mass size 8.5x6,8x5,6 cm, yellowish-gray white color, and firm consistency. There were also hair and tooth components. The microscopic representation shows pieces of lung tissue with tumor growth coated with squamous epithel with a stroma containing adnexal skin glands, fatty tissue, cartilage tissue, and serous glands (asinar). Discussion: Mature teratoma of the lung is one of the rare tumors, with symptoms of chest pain, hemoptysis, and trichoptysis. Mature teratoma of the lung is generally cystic and multiloculated, but can also be solid, encapsulated. On microscopic examination, shows a picture of various components of ectoderm, mesoderm and endoderm. Conclusion: Mature teratoma of the lung is a rare tumor. Diagnosis was based from clinical findings, radiologic examination, and confirmed with histopathology and immunohistochemistry.

Abstract Malaria is a parasitic infectious disease caused by Plasmodium, which remains a world health problem with an estimated 219 million cases worldwide. In severe malaria infection, several organs of the body can be affected, including the kidneys. One of the pathophysiology associated with the worsening of this disease is oxidative stress. The use of antioxidants is expected to prevent this, and one product that has a high antioxidant content is virgin coconut oil (VCO). This study aimed to analyze the effect of VCO on the kidney in Plasmodium berghei ANKA-infected mice. This study was an in vivo laboratory experimental study with a randomized post-test only control group design using 35 BALB/c mice infected with P. berghei ANKA, weighing 20-30 grams. VCO with the Javara® brand is used with doses of 1, 5, and 10 ml/kg body weight (kgBW)/ day. The parameter assessed were levels of BUN, creatinine, and renal histopathological changes. The administration of VCO on the treated group shows minimal tubular necrosis and glomerulonephritis compared to the negative control group. The BUN and creatinine levels in the treated group were also lower than the negative control group. The results showed that VCO has a nephroprotective effect against P. berghei ANKA infection in mice. Keywords: malaria, kidney, virgin coconut oil