Table 4:
Final HPE diagnosis with salient clinical, morphological features, and percentage specific diagnosis by two observers.
| Diagnosis (number) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Clinical, Radiological features and % specific diagnosis made | SPN (26) | WON/pseudocyst (22) | IPMN (7) | MCA (12) | SCN (9) | MCAC (2) | Simple epithelial cyst (1) | Unspecified benign cyst (1) |
| Median age (Range) years | 26 (18–42) | 35(23–63) | 53 (41–71) | 35.5 (21–73) | 43 (29–54) | 52 (46–58) | 33 | 35 |
| Gender M:F | 5:21 | 15:7 | 6:1 | 0:12 | 1:8 | 0:2 | 0:1 | 0:1 |
| Location (Most frequent) | Body and tail 7 (26.9%) | Pancreatic and extrapancreatic 10 (45.4%) |
Head and Uncinate 4 (57.1%) | Body and Tail 4 (33.3%) | Body and Tail 6 (66.6%) | Body and Tail 2 (100%) | Body and tail 1 (100%) | Head and uncinate 1 (100%) |
| Morphology (Frequently encountered) | Solid cystic 22 (84.6%) Microcystic 2 (7.69%) Cyst with mural nodule 2 (7.69%) |
Unilocular 12 (54.5%) Septated 7(31.82%) |
Cyst with mural nodule 5 (71.4%) |
Macrocystic 5 (41.6%) Unilocular 3 (25%) |
Microcystic 3 (33.3%) Macrocystic 2 (22.2%) Mixed solid cystic 2 (22.2%) Septated 2 (22.2%) |
Macrocystic 1 (50%) Cyst with mural nodule 1 (50%) |
Macrocystic 1 (100%) |
Macrocystic 1 (100%) |
| Contour (Most frequent) | Smooth/macro-lobulated (22/26) 84.6% |
Smooth (15/22) 68.1% |
Macrolobulated (4/7) 57.1% |
Smooth (10/12) 83.3% |
Macrolobulated (5/9) 55.5% |
Smooth (2/2) 100% |
Smooth | Macrolobuated |
| Wall thickness | Not assessed in solid cystic lesions | ick (12/22) 54.55% | in (6/7) 85.7% |
in (10/12) 83.3% |
in (7/9) 77.7% |
ick (2/2) 100% |
ick | in |
| Cyst wall enhancement Equal/Less than/More than pancreas (Most frequent) |
Less 14 (56%) |
Equal 17 (77.2%) |
Equal 5 (71.4%) |
Less 7 (58.33%) |
Equal 5 (55.56%) |
Equal 1 (50%) More 1(50%) |
Equal 1 (100%) |
Equal 1 (100%) |
| Central scar | None | None | None | None | 1/9 11.1% |
Nil | Nil | Nil |
| Debris/ Hemorrhage | 5 (19.2%) | 15 (68.2%) | 1 (14.2%) | 1 (8.3%) | Nil | Nil | Nil | Nil |
| Morphology of calcification (Most frequent) |
Coarse 7 (26.9%) |
Coarse 1 (4.5%) |
Nil | Combination of peripheral and septal 2 (16.6%) |
Coarse 5 (55.5%) |
Combination of peripheral and septal 1 (50%) | Coarse 1 (100%) |
Nil |
| Extracapsular cystic sign | 1 (3.8%) | Nil | 1 (14.2%) | 2 (16.6%) | 6 (66.6%) | Nil | Nil | 1 (100%) |
| MPD dilatation | 2 (7.6%) | 6 (27.2%) | 7 (100%) | 4 (33.3%) | 2 (22.2%) | Nil | Nil | Nil |
| Caliber of MPD if dilated in mm Min- Max | 3.4–6 mm | 3.3–10 mm | 4.1–14mm | 3.5–5 mm | 3–10.4 mm | Nil | Nil | Nil |
| MPD communication | None | None | 6 (85.7 %) | None | None | Nil | Nil | Nil |
| Morphology of background pancreas (Most frequent) | Normal 25 (96.1%) |
inning 10 (45.4%) |
Normal 4 (57.1%) |
Normal 11 (91.6%) |
Normal 8 (88.8%) |
Normal 2 (100%) |
Normal 1 (100%) |
Normal 1 (100%) |
| Correct specific diagnosis (%) Observer 1 |
23 (88.4%) | 18 (81.8%) | 6 (85.7%) | 8 (66.6%) | 3 (33.3%) | 1 (50%) | 0% | 0% |
| Correct specific diagnosis (%) Observer 2 | 22 (84.6%) | 20 (90.9%) | 5 (71.4%) | 9 (75%) | 2 (22.2%) | 0% | 0% | 0% |