[Human adiaspiromycosis: cicatricial lesions in mediastinal lymph nodes].

Chest roentgenogram of a sixty-year-old male patient, revealed a tumoral mass in the right lung, that was later demonstrated by transbronchial biopsy, to be a bronchogenic adenocarcinoma. There was no tomographic evidence of distant metastasis, however, in order to assess the mediastinal involvement for staging of the tumor, biopsies from the regional lymph nodes were obtained. Microscopic examination of the sample tissues failed to show any metastatic lesion, but, unexpectedly, revealed the presence of cicatricial granulomas in an advanced stage of fibrosis.

[Polycystic hydatidosis: casual finding of calcified hydatid cyst simulating mesenteric neoplasm].

A case of abdominal hydatidosis, without hepatic involvement, in a patient from the State of Acre is reported. The hydatid, already in degeneration and partially calcified, was discovered incidentally by a radiologic examination of the vertebral column, carried out for evaluating the state of an intervertebral disk prolapse. Although the images suggested a mesenteric tumor, attached to the intestinal wall, the finding of rostellar hooklets in the dense contents of the cyst, after surgical removal, revealed the parasitic nature of the lesion.