neoplasm

Intraductal tubulopapillary neoplasm (ITPN) of the pancreas is a relatively recently established intraductal neoplasm of the pancreas that was first described in 2009 by Yamaguchi et al.

In brief, the classification system evaluated in the present study categorized salivary gland cytopathology into the following diagnostic groups: unsatisfactory, negative for neoplasm, lesion of unknown significance, benign neoplasm, suspicious for malignancy, and positive for malignancy.

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare myeloid malignancy accounting for less than 1% of all acute leukemias.

(10) The Bethesda system categorises FNAC result into six categories: non-diagnostic (Bethesda I), benign (Bethesda II), atypia of undetermined significance or follicular lesion of undetermined significance (Bethesda III), follicular neoplasm or suspicious of follicular neoplasm (Bethesda IV), suspicious of malignancy (Bethesda V) and malignant (Bethesda VI).

(8) reviewed appendiceal neoplasm cases in order to apply the changes in the classification system in accordance to the 2012 meeting of the Peritoneal Surface Oncology Group International and using the 2016 Modified Delphi Consensus Protocol (Delphi).

Cystic pancreatic masses include pseudocyst, serous cystadenoma, mucinous cystadenoma, intraductal papillary mucinous neoplasm, and solid pseudopapillary tumor.

The neoplasm compressed and extended into the white and grey matters, in addition to nerves roots (Figure 1C).

Magnetic resonance imaging (MRI) of the pancreas was performed, and the result was reported as "9 cm X 7 cm x 6 cm neoplasm at the head of the pancreas, which might be compatible with pseudopapillary neoplasm or less probably with cyst adenoma" (Figures 1 and 2).

Later on the World Health Organization (WHO) in 1996 defined it as low-grade malignant neoplasm of exocrine pancreas7.

The tissue was sent for histopathology and diagnosis of spindle cell neoplasm of neural origin was established after histopathological and immunohistochemical analysis.

Pathology revealed a malignant spindle and epithelioid cell neoplasm (Figure 1) that was focally positive for smooth muscle actin (SMA) and negative for multiple keratins, EMA, CD34, Desmin, GFAP, and S100 (see Table 1 for antibody information).

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare aggressive hematologic neoplasm, included among acute myeloid leukemia (AML) and related precursor disorders in the 2008 World Health Organization (WHO) classification of hematological diseases and then classified as a distinct entity among myeloid neoplasms in the 2016 revision [1,2].