Mesothelium on Leukoformula

Reactive Mesothelium in Cytology of Serous Effusions

Fri, 09 Oct 2026 08:00:00 +0300

🙏 The publication was kindly provided by Maria Abramina

Ascitic Fluid Cytology: Multinucleated Mesothelial Cells

Tue, 14 Apr 2026 08:00:00 +0300

🧪 Ascitic fluid. 🔬 Multinucleated (polyploid) mesothelial cells with microvilli.

🙏 Photos and description kindly provided by KDL biologist Yulia Guseva GBUZ Belorechenskaya Central District Hospital.

Cytological Diagnosis of Malignant Mesothelioma

Wed, 28 May 2025 16:00:01 +0300

Cytology. Malignant Mesothelioma Cells. 🔬 Images 1 and 2: Malignant mesothelioma, unusual variants. In rare cases, mesotheliomas show marked cytoplasmic vacuolization (“clear cell type”). 🔬 Images 3 and 4: Some mesotheliomas consist of small cells; however, the use of the term “small cell mesothelioma” is not recommended to avoid confusion with small cell lung carcinoma.

Mesothelium in Ascitic Fluid: Native Specimen Microscopy

Thu, 19 Dec 2024 20:30:00 +0300

🔬 Ascitic fluid. Native specimen. Mesothelium against a background of erythrocytes and leukocytes. Magnification 400x.

Reference information: Mesothelium is a single layer of squamous epithelium of serous membranes lining body cavities (peritoneum, pleura, pericardium) in vertebrate animals and humans, formed from the mesoderm. It consists of flat polygonal cells with tightly closed edges. In mammals and humans, the outer surface of mesothelial cells is covered with microvilli, which are involved in the absorption and secretion of cavity fluid by these cells.