Experience Sharing in Pathological Diagnosis of Early Adenocarcinoma of the Lung.

In daily work, there are still many pathologists who have difficulty handling the diagnosis of atypical adenomatous hyperplasia, adenocarcinoma in situ, minimally invasive adenocarcinoma, and lepidic adenocarcinoma, and the boundaries are not clear enough. Sometimes, the diagnosis is difficult, and there is sometimes poor reproducibility between different pathologists. Accurate diagnosis and differential diagnosis require a certain amount of experience.

Malignant transformation of craniopharyngioma with detailed follow-up.

A 29-year-old male patient was admitted into hospital with the main complaint of progressive visual disturbance. Both CT SCAN and MRI demonstrated a cystic-solid contrast-enhancing sellar-suprasellar mass with obvious calcification. Histopathological examination of the first resected specimen showed a typical appearance of adamantinomatous craniopharyngioma.

[Pleuropulmonary blastoma of adults: a clinicopathological analysis].

Objective: To report two cases of pleuropulmonary blastoma (PPB) of adults and improving the understanding of this tumor.

Methods: The clinicopathological features of two cases of adult PPB were examined by light microscope and an immunohistochemical study.

Results: As a rare malignant mesenchymal tumor, PPB arose from primitive cells of lung, pleura and mediastinum.