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examination and diagnosis of sweat adenocarcinoma

examination and diagnosis of sweat adenocarcinoma

Common examination of sweat adenocarcinoma

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Immunopathological examinationWhole body--Immunopathological examination...
Examination of sweat adenocarcinoma

1. CT examination.

2. Immunopathological examination.

3. Histopathology:

The tissue looks like well-differentiated, moderately differentiated or poorly differentiated adenocarcinoma. In well-differentiated apocrine adenocarcinoma, the degree of nuclear atypia and invasiveness is limited, and there are fully developed glandular cavities, which are cystic and branched. The cytoplasm of tumor cells is strongly acidic, and there is evidence of typical decapitation secretion of apocrine glands at least in some parts. In addition, the cytoplasm of tumor cells contained PAS positive, amylase-resistant granules and no myoepithelial cells. It is difficult to identify the origin of sweat glands in moderate or poorly differentiated sweat adenocarcinoma.

Histochemistry and immunohistochemistry are helpful to judge the tumors from apocrine glands. 40% ~ 50% of sweat adenocarcinoma showed positive reaction by Prussian blue staining. Giant cystic fluid protein 15 (GCDFP-15) was strongly positive.

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