Background. Hepatic cystic teratoma is an extremely rare tumor and hepatoblastoma a relatively rare tumor of childhood. Their occurrence as a combined tumor has not been previously reported.
Methods. The relevant clinical, radiologic, and pathologic findings are presented.
Results. A 17‐month‐old boy presented with an abdominal mass. Imaging studies suggested an intrahepatic teratoma, but serum alpha‐fetoprotein levels were extremely elevated. The resected tumor comprised adjoining benign cystic teratoma and epithelial hepatoblastoma. The child remains alive and well 37 months after complete resection of the tumor.
Conclusions. The tumor was considered most likely to originate from divergent differentiation of a single uncommitted liver precursor cell.
A 49-year-old woman presented with an asymptomatic indurated linear plaque extending from the medial surface of the right thumb along the junction of the dorsal and palmar skin of the hand onto the lateral aspect of the index finger. The left hand showed a similar but less extensive plaque. A skin biopsy showed an acellular zone in the reticular dermis composed of thickened bundles of collagen haphazardly arranged, some perpendicular to the epidermis, admixed with elastic fibres and amorphous basophilic elastotic material. Granular calcium deposits were identified, particularly within degenerate collagen bundles. These clinical and histological features are diagnostic of collagenous and elastotic marginal plaques of the hands, a slowly progressive but largely asymptomatic condition. Actinic degeneration and chronic pressure have been proposed as aetiological agents, but our patient did not exhibit marked actinic degeneration and had no history of chronic occupational pressure.
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