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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Review of the literature on case distribution and primaries identified in bone metastases of unknown origin

From: Bone metastases of unknown origin: epidemiology and principles of management

Authors

BMUO at diagnosis

Identified PC

Main PC

PC in order of frequency

Occult PC

Simon and Karluk [14]

12

6

Kidney 3 (50 %)

Kidney (3), lung (2), others (1)

6 (50 %)

Simon and Bartucci [31]

46

20

Lung 7 (35 %)

Lung (7), kidney (6), breast = prostate (2), ovarian = thyroid = liver (1)

26 (56 %)

Nottebaert et al. [2]

51

33

Lung 17 (51 %)

Lung (17), others (16)

18 (35 %)

Shih et al. [11]

52

28

Lung 9 (32 %)

Lung (9), liver (8), kidney (5), prostate (3), thyroid (2), rectum (1)

24 (46 %)

Rougraff et al. [19]

40

34

Lung 23 (67 %)

Lung (23), kidney (4), breast = colon = liver = bladder (1), others (3)

6 (15 %)

Jacobsen et al. [20]

29

24

Lung 11 (46 %)

Lung (11), prostate (3), breast = lymphomas (2), kidney = ovary = pancreas = stomach = small intestine carcinoid = retroperitoneal rhabdomyosarcoma (1)

5 (17 %)

Katagiri et al. [5]

64

59

Lung 23 (39 %)

Lung (23), prostate (11), breast = liver (5), others (15)

5 (8 %)

Vandecandelaere et al. [1]

129

84

Lung 36 (43 %)

Lung (36), prostate (17), kidney (15), breast (9), stomach (2), bladder = colon = testis = pancreas = liver (1)

45 (35 %)

Destombe et al. [24]

107

94

Lung 37 (39 %)

Lung (37), prostate (26), breast (20), bladder (11)

13 (12 %)

Iizuka et al. [25]

27

26

Myeloma 7 (27 %)

Myeloma (7), lymphoma (3), lung (6), prostate (4), kidney = thyroid = liver = pancreas = stomach = esophagus (1)

1 (4 %)

Hemminki et al. [13]

501

256

Lung 128 (50 %)

Lung (128), urinary (29), prostate (16), breast (14), colon (12), pancreas = gastrointestinal (10), liver (9), biliary system (4), stomach (3), mediastinum (2), ovarian (1), others (18)

203 (40 %)

  1. BMUO bone metastases of unknown origin, PC primary carcinoma