Table 2. Summary of the main clinical data of 89 cases in the literature.

Main clinical data	All patients, n (%)
Total of the number of cases	89
Median age(years)	70
Sex
Male	67 (75.3)
Female	22 (24.7)
Common findings of presentation
Papules, nodules, or plaque	76 (85.4)
Ulcer	4 (4.5)
Pustule	1 (1.1)
Others (such as unique subcutaneous swelling)	6 (6.7)
Data not available	2 (2.2)
Common findings of location
Extremities, trunk, chest or widespread	72 (80.9)
Other locations (face, nose, scalp, neck, feet, finger)	10 (11.2)
Data not available	7 (7.9)
Chronology of skin lesions
Before diagnosis of CMML	5 (5.7)
Concomitant with diagnosis of CMML	26 (29.2)
After diagnosis of CMML	56 (62.9)
Data not available	2 (2.2)
Extramedullary (EM) manifestations
Hepatosplenomegaly or lymphadenopathy	64 (71.9)
Central nervous system involvement	1 (1.1)
Testicular swelling	1 (1.1)
Parotid gland swelling	1 (1.1)
None	5 (5.6)
Data not available	17 (19.1)
Duration from skin lesion to disease progression or death(months)
≤5	30 (33.7)
6-10	6 (6.7)
10-20	28 (31.5)
23	16 (18.0)
Data not available	9 (10.1)
Treatment
Chemotherapy±radiotherapy or local steroid	72 (80.9)
Stem cell transplant	1 (1.1)
None or palliative care	6 (6.7)
Data not available	10 (11.2)

CMML, chronic myelomonocytic leukaemia.