Table 1 Clinicopathological characteristics of 24 cases of PASTs
From: Clinicopathological characteristics and prognosis of primary appendiceal stromal tumors
Characteristics | N(%) |
|---|---|
Age (year)/(Σ = 24) | |
 <59 | 11(45.8) |
 ≥ 59 | 13(54.2) |
Sex (Σ = 24) | |
 Male | 14(58.3) |
 Female | 10(41.7) |
Tumor size (cm)/(Σ = 24) | |
 ≤ 2 | 11(45.8) |
 2.1–5.0 | 1(4.2) |
 5.1–10 | 8(33.3) |
 >10 | 4(16.7) |
Gross type (Σ = 24) | |
 Solid | 20(83.3) |
 Mixed | 4(16.7) |
 Cystic | 0(0.0) |
Histologic type (Σ = 24) | |
 Spindle | 21(87.5) |
 Epithelioid | 2(8.3) |
 Mixed | 1(4.2) |
Lymph node metastasis (Σ = 24) | |
 Yes | 1(4.2) |
 No | 23(95.8) |
Mitotic index(%)/(Σ = 17) | |
 ≤ 5 | 14(82.4) |
 >5 | 3(17.6) |
Ki-67(%)/(Σ = 6) | |
 <5 | 4(66.7) |
 ≥ 5 | 2(33.3) |
Immunohistochemistry (Σ = 24) | |
 CD117 (Σ = 24) | 23(95.8) |
 CD34 (Σ = 20) | 15(75.0) |
 DOG-1 (Σ = 5) | 3(60.0) |
 SMA (Σ = 17) | 4(23.5) |
 S-100 (Σ = 24) | 7(29.2) |
Mutational status (Σ = 5) | |
 Kit | 3(60.0) |
 PDGFRA | 0(0.0) |
 Wild type | 2(40.0) |
 SDHB | 0(0.0) |
NIH risk category (Σ = 24) | |
 Very low risk | 11(45.8) |
 Low risk | 2(8.3) |
 Intermediate risk | 4(16.7) |
 High risk | 7(29.2) |
Rupture (Σ = 24) | |
 Yes | 2(8.3) |
 No | 22(91.7) |
Ulceration (Σ = 24) | |
 Yes | 1(4.2) |
 No | 23(95.8) |
Symptoms (Σ = 24) | |
 Appendicitis | 14(58.3) |
 Abdominal distension or pain or mass | 17(70.8) |
 Hematochezia or anemia | 3(12.5) |
 Nausea or emesis | 3(12.5) |
 Others | 6(25.0) |