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a. hipercromático-a, con exceso de colorante o pigmentación.
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However, all 18 cases displayed a novel, more subtle, and previously undescribed finding: haphazard and uneven distribution of atypical solitary melanocytes with variably sized and shaped hyperchromatic nuclei (J Cutan Pathol.
Leishman stained smears revealed sheets, clusters and singly scattered pleomorphic tumour cells with moderate amount of basophilic cytoplasm, round to oval hyperchromatic nucleus and few showing prominent nucleoli; along with bi-nucleated forms of tumour cells in a background of numerous lymphocytes and haemorrhage.
The undifferentiated mesenchymal cells have oval to elongated hyperchromatic nuclei and a scant amount of cytoplasm.
Random distribution of enlarged hyperchromatic cells with mild nuclear atypia and occasional multi-nucleation involved both the adipose and stromal components.
The nucleus is flattened and located on the periphery, whereas lipoblasts characteristically have abundant multivacuolated clear cytoplasm and a dark staining (hyperchromatic), indented nucleus.
Caption: FIGURE 3: The anastomosing channels are readily apparent and are lined with atypical endothelial cells with enlarged and hyperchromatic nuclei.
Histopathological work-up revealed a highly cellular tumor consisting of small cells with scant cytoplasm and round-oval or pleomorphic, hyperchromatic cells in the cerebellum.
They had high nuclear to cytoplasmic ratio with hobnailing hyperchromatic nuclei.
Pathology revealed pleomorphic, hyperchromatic cells with glassy, astrocytic cytoplasm, as well as hypercellularity, microvascular proliferation, and necrosis, consistent with the diagnosis of classic GBM (Figure 2).
The main components were tubules lined by dark hyperchromatic cells with stratification [Figure 1]d.
The microscopic examination of this tumor nodule revealed fascicles of spindle cells, with pleomorphic hyperchromatic nuclei exhibiting moderate to severe atypia and areas of tumor necrosis (Figure 1).
Aspiration cytology of the subcutaneous nodules showed marked anisokaryosis, hyperchromatic and stippled nuclei, prominent nucleoli, intranuclear inclusions, and pigment laden melanophages (Figure 2a).