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An 81-year-old male patient presented with a painful mass in the tongue that showed a progressive growth within the past two months. Examination revealed a polypoid mass in the midline of the tongue, purple in color, and 1.5x1.5 cm in size. There was no palpable lymph node on neck examination. An excisional biopsy was performed with adequate surgical margins. The histopathological diagnosis was Kaposi's sarcoma. Clinical and radiological evaluations did not show any systemic involvement. An HIV test was negative. He was referred to the medical oncology department. No recurrence was detected during a year follow-up.

Most of the primary malignant lymphomas of the salivary glands originate from the parotid gland. We presented two patients who were admitted with a painless mass in the parotid region and diagnosed to have a lymphoma. Physical examination of a 66-year-old male patient showed a relatively mobile, painless, and firm mass at the inferior aspect of the right parotid gland. Ultrasonography, computed tomography, and magnetic resonance imaging (MRI) were performed and a needle biopsy was obtained from the solid lesion extending from the right parotid superficial lobe to the medial deep lobe. Pathological examination revealed large B-cell lymphoma. The patient was treated according to the CHOP chemotherapy protocol. The second patient had undergone surgery for orbital lymphoma and received CHOP chemotherapy. On physical examination, there was a painless mass in the parotid cauda on the left and a subcutaneous lymph node, 0.5 x 1 cm in size, inferior to the parotid cauda. Computed tomography and MRI showed an irregularly contoured solid lesion, 2 x 1 cm in size, in the posteroinferior aspect of the superficial lobe. Lymph node biopsy yielded a diagnosis of small cell malignant lymphoma. The patient was referred to the medical oncology department for staging, further investigation, and planning of the treatment.

To discuss diagnosis, risk factors, clinical and radiologic manifestations of invasive pulmonary aspergillosis (IPA) that is accepted as an important mortality factor in organ transplant recipients. We retrospectively evaluated seven IPA cases who were diagnosed among 207 patients that had undergone organ transplantation surgery in our center between 1998-2001. Of seven patients, four was renal and three was liver recipients. Diagnosis was made histopathologically (three post-mortem, one transbronchial lung biopsy) in four patients while culture positivity (sputum and tracheal aspiration material) with clinical and radiological evaluation was the diagnostic criteria for three patients. The most common respiratory symptoms were fever, productive cough and dyspnea. The most common fiberoptic bronchoscopic findings were mucosal fragility, hemorrhage. In one patient plaque formation was found. One liver recipients had been on hemodialysis because of renal insufficiency (serum creatine was 2.6 mg/dL). All liver and kidney recipients had allograft failure. One liver and two kidney recipients had neutropenia, two liver and one kidney recipients had thrombocytopenia. Six patients had received amphotericin-B and/or itraconazole therapy. Four of the five exitus were receiving antifungal treatment. Three of them were lost in a short time while only one non-survivor had received itraconazole for three weeks. The most frequent CT findings were patchy infiltrations and nodule formation with or without cavitation. Five patients were lost in two months (mortality, 71.4 %), two survivors are under follow up. These findings showed, IPA should be thought in the differential diagnosis of pulmonary infections after organ transplantation.