Table 1.
Summary of 43 Double Primary Malignancies
| No | Sex | Primary malignancy | Secondary malignancy | Time interval (months) | No | Sex | Primary malignancy | Secondary malignancy | Time interval (months) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | F | Adenocarcinoma of the breast | Malignant glioma | 5 | 23 | F | Invasive ductal carcinoma | Tubular adenocarcinoma of the colon | 27 |
| 2 | F | Squamous cell carcinoma of the skin of the ear canal | Breast carcinoma | 42 | 24 | M | Adenocarcinoma of the lung | Esophageal squamous cell carcinoma | 5 |
| 3 | M | Adenocarcinoma of the lung | Papillary carcinoma of the thyroid | 13 | 25 | F | Esophageal leiomyosarcoma | Chest wall fibrosarcoma | 5 |
| 4 | M | Mucinous adenocarcinoma of the rectum | Gastric adenocarcinoma | 18 | 26 | M | Gastric adenocarcinoma | Well-differentiated Esophageal squamous cell carcinoma | 108 |
| 5 | F | (right) Breast carcinoma | (left) Sarcomatoid metaplastic ductal carcinoma of the breast | 3 | 27 | F | Basal cell carcinoma of the skin | Mixed ductal/sebaceous carcinoma of the breast | 46 |
| 6 | F | Gastric adenocarcinoma | Ovarian mucinous adenocarcinoma | 28 | 28 | F | (right) Infiltrating ductal carcinoma of the breast | (left) Mixed ductal carcinoma in situ/acne clear cell carcinoma | 1 |
| 7 | M | Gastric Cardia Adenocarcinoma | Esophageal squamous cell carcinoma | 8 | 29 | M | Bulge-like skin fibrosarcoma | Adenocarcinoma of the rectum | 54 |
| 8 | F | Ovarian serous adenocarcinoma | Adenocarcinoma of the colon | 43 | 30 | M | Well-differentiated squamous cell carcinoma of the tonsil | Hepatocellular carcinoma | 35 |
| 9 | F | Infiltrating ductal carcinoma | Squamous cell carcinoma of the lung | 56 | 31 | F | Chondrosarcoma | Ovarian serous adenocarcinoma | 120 |
| 10 | F | Malignant sweat gland tumor | Papillary carcinoma of the thyroid | 39 | 32 | F | Clear-cell carcinoma of the ovary | Medullary carcinoma of the breast | 61 |
| 11 | F | Malignant thymoma | Papillary carcinoma of the thyroid | 3 | 33 | M | Adenosquamous carcinoma of the lung | Low grade adenocarcinoma of the stomach | 21 |
| 12 | F | Gastric adenocarcinoma | Infiltrating ductal carcinoma | 146 | 34 | F | Laryngeal squamous cell carcinoma | Infiltrating ductal carcinoma | 5 |
| 13 | F | squamous cell carcinoma of tongue | Adenocarcinoma of the lung | 86 | 35 | F | Malignant mixed tumor of parotid | Infiltrating adenocarcinoma of the breast | 32 |
| 14 | F | Well-differentiated squamous cell carcinoma of the cervix | Adenocarcinoma of the colon | 91 | 36 | F | Tubular Adenocarcinoma of the ascending colon | Mucinous adenocarcinoma of the sigmoid colon | 25 |
| 15 | M | Papillary carcinoma of the thyroid | Adenocarcinoma of the lung | 43 | 37 | M | Follicular thyroid carcinoma | Squamous cell carcinoma of the lung | 76 |
| 16 | F | Invasive lobular carcinoma | Endometrial cancer | 61 | 38 | M | Esophageal squamous cell carcinoma | Adenosquamous cell carcinoma of the esophageal gastric junction | 0 |
| 17 | F | Adenocarcinoma of the stomach | Ovarian serous adenocarcinoma | 23 | 39 | F | Cervical squamous cell carcinoma | Signet-ring carcinoma of the colon | 34 |
| 18 | M | Hepatocellular carcinoma | Diffuse large B-cell lymphoma of the Antrum | 44 | 41 | F | Mid-differentiated Cutaneous melanoma differentiation | Squamous cell carcinoma of the lung | 47 |
| 19 | F | Perineal skin squamous cell carcinoma | Undifferentiated carcinoma of the colon | 89 | 41 | M | Stromal tumor of the colon | Tubular adenocarcinoma of the colon | 0 |
| 20 | F | Renal clear cell carcinoma | Supraclavicular mid-differentiated lymphoma | 77 | 42 | F | Cervical carcinoma in situ | Follicular carcinoma of the thyroid | 76 |
| 21 | F | Malignant gliomas | Ovarian serous cystadenocarcinoma | 5 | 43 | M | Medium Differentiated squamous cell carcinoma of the nasopharyngeal cavity | Adenosquamous cell carcinoma of the lung | 21 |
| 22 | F | High grade Adenocarcinoma Of the gallbladde | Tubular adenocarcinoma of the colon | 68 |