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1. Histopathology of Inflammation

2. Minimal Deviation Melanoma, etc.

Navigation aids below this level have special attributes (as described both below, and in the Image Map)

F1Ch21 (G8391): The well differentiated basal cell carcinoma is represented on the right; it is an expansile lesion that has slightly compressed the underlying reticular dermis. To the left, the patterns might be characterized as variations of those seen in the setting of a seborrheic keratosis.

F2Ch21: To the left, the pattern is that of a variant of seborrheic keratosis. To the right, the well differentiated basal cell carcinoma is represented. On all sections, the carcinoma is within the confines of the domain of the seborrheic keratosis; the patterns are such that the basal cell carcinoma is interpreted as having its origin from the “seborrheic keratosis.”

F3Ch21: There is a thin zone of mucinous connective tissue at the advancing margin of these two nests of basal cell carcinoma. A well-defined cleft is not identified. On the right, near the epidermis, the tumor shows degenerative changes.

F4Ch21: The well differentiated basal cell carcinoma has expanded into the reticular dermis. The pattern of thin interlacing cords qualifies as a variation of basic fibrofollicular arrangements. There are scattered solid patterns.

F5Ch21: Solid and trabecular patterns are represented. The induced stroma has myxoid qualities.

F6Ch21: A thin band of myxoid connective tissue separates the nests of small basophilic cells from the underlying reticular dermis.