[Granular cell tumor of the rectum: description of a case with unusual histological features].
The localization of granular cell tumor to the rectum is rare. We describe a case characterized by areas with spindle cell pattern, pleomorphic cells with acidophilic granular cytoplasm, nuclear variations and absence of mitoses. Diagnosis has been confirmed by immunohistochemical study. After 22-month follow-up the patient does not show evidence of recurrence or metastases.
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Servizio di Anatomia Patologica e Citodiagnostica, Ospedale Civile di Rovigo.
Bianchini
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Reale
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D014408:Biomarkers, Tumor / Q000032:analysis; D002272:Carcinoembryonic Antigen / Q000032:analysis; D016586:Granular Cell Tumor / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008940:Mitotic Index; D009363:Neoplasm Proteins / Q000032:analysis; D010751:Phosphopyruvate Hydratase / Q000032:analysis; D012004:Rectal Neoplasms / Q000473:pathology*; D009418:S100 Proteins / Q000032:analysis; D014746:Vimentin / Q000032:analysis
D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen; D009363:Neoplasm Proteins; D009418:S100 Proteins; D014746:Vimentin; D010751:Phosphopyruvate Hydratase
Tumore a cellule granulose del retto: descrizione di un caso con inusuali aspetti istologici.