Initially described 40 years ago (Rosai), the undifferentiated osteoclastic-type giant cell carcinoma (IOGCC) is a variant of ductal adenocarcinoma and accounts for less than 1% of exocrine pancreatic tumors. Its extreme rarity, with consequent existence of few reports and clinical experience, leads to the arousal of doubts with regard to its histogenesis, types of approach and therapeutical attitudes. It is im...
Heterotopic gastric mucosa is an extremely rare condition; in the anorectal region only a very few cases were described up to now. The authors report a case of a 46-year-old woman, asymptomatic, to whom a massive recess was discovered in the rectum, at 12 cm of the anal verge; a bottom flat lesion with 1.5 cm of diameter revealed a focus of normal appearing fundic-type gastric mucosa at histology. ; Heterotopi...
A doença de depósitos de cadeias leves (DDCL) é uma das mais raras discrasias de células plasmocitárias monoclonais. Caracteriza-se pela infiltração multissistémica por cadeias leves, sendo o atingimento renal quase universal. O envolvimento hepático de forma isolada é raro, sendo este órgão geralmente afectado em doentes que também apresentam doença renal, a qual normalmente domina o quadro clínico. Os autores...
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