microacinar pattern

microacinar pattern

A vaguely cribriform pattern that may be seen in poorly differentiated adenocarcinoma of the prostate.
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Pathologic study of the biopsy specimen after decalcification displayed a picture of metastatic adenocarcinoma composed of round to oval tumor cells arranged in ovoid clusters, small rounded nests, cribriform nests, and focal microacinar pattern stuffed in bone marrow cavity (Figure 4).