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. Author manuscript; available in PMC: 2019 Aug 7.
Published in final edited form as: Am J Surg Pathol. 2018 Jun;42(6):767–777. doi: 10.1097/PAS.0000000000001038

Figure 3.

Figure 3.

Morphologic spectrum of indeterminate cases (IND) with overlapping features of MTSCC and PRCC. (A) A subset of cases show a distinct papillary region with well-formed papillae of type 1 PRCC (left) and MTSCC-like areas with intermixed tubules, spindle cells and stromal mucin (right). (B) High-power view of the MTSCC-like areas in (A). (C) Case IND4 shows areas with intermixed elongated tubules and abortive papillae. (D) Case IND7 shows intermixed tubular, solid and spindle cell components as well as mucin. (E) Intermixed tubules and micronodules. (F) Micronodules encompassing small branching papillae that have fibrovascular cores.