Table 2.

Morphologic features of MTSCC, PRCC, and IND cases (n=26)

Case #	Capsule	Elongated tubules (%)	Short tubules (%)	Spindle cells (%)	Solid sheets (%)	Micronodules/abortive papillae (%)	Well-formed papillae (%)	Mucin	Foamy macrophages
MTSCC1	Yes	80	0	10	0	10	0	Apparent	Not apparent
MTSCC2	No	70	5	20	0	5	rare foci (<1%)	Apparent	Not apparent
MTSCC3	Yes	60	20	0	10	10	0	Apparent	Not apparent
MTSCC4	No	20	40	20	15	5	0	Apparent	Present
MTSCC5	No	50	20	10	15	5	0	Poor	Present
MTSCC6	Yes	30	20	25	20	5	0	Apparent	Present
MTSCC7	Yes*	10	30	20	30	10	rare foci (<1%)	Poor	Present
MTSCC8	Yes	40	20	30	0	10	0	Apparent	Present
MTSCC9	Yes	80	10	10	0	0	0	Apparent	Present
MTSCC10	No	50	10	10	20	10	rare foci (<1%)	Poor	Present
MTSCC11	No	30	35	20	10	5	rare foci (<1%)	Poor	Not apparent
PRCC1	Yes	0	40	0	50	0	10	No	Abundant
PRCC2	Yes*	0	0	30	10	60	0	No	Not apparent
PRCC3	Yes*	10	35	10	40	5	rare foci (<1%)	No	Abundant
PRCC4	Yes	5	5	10	20	50	10	No	Abundant
PRCC5	No	20	5	0	25	30	20	No	Abundant
PRCC6	No	10	0	0	5	80	5	No	Not apparent
IND1	Yes	30	20	10	10	30	rare foci (<1%)	Focal	Present
IND2	No	20	10	0	50	20	rare foci (<1%)	Poor	Not apparent
IND3	Yes	40	5	10	0	40	5	Poor	Present
IND4	No	30	20	10	0	40	0	No	Present
IND5	No	5	20	0	30	5	40	Apparent	Present
IND6	No	10	5	20	20	10	35	Apparent	Present
IND7	Yes*	10	35	0	40	10	5	Present (luminal)	Not apparent
IND8	No	10	20	10	0	55	5	Poor	Present
IND9	Yes*	10	5	10	60	5	10	No	Abundant

^*Fibrous capsule is present but only partially surrounding the tumor.