Mullerian-Type Ciliated Cyst of the Thigh with PAX-8 and WT1 Positivity: A Case Report and Review of the Literature

Table 1

List of previously reported cases of ciliated cutaneous cysts from 1890 to 2015. A total of 60 cases were reported, of which 50 were in female patients and 10 in males. Forty-eight (48) of these lesions were located in the lower extremity and its vicinity including the inguinal region, scrotum, perineum, buttock, gluteal cleft, and sacrococcygeal region. The other locations included the back, neck, scalp, cheek, abdominal wall, umbilicus, paravertebral region, and thumb. The reported ages ranged from 7 to 60.

Number	Year	Sex	Age	Location	Duration	Authors
1	1890	Female	15	Back	Recent	Hess
2	1969	Female	39	Left leg	>10 years	Clark
3–6	1970	Female	15–27	Thigh × 2	2 to several years	Butterworth et al.
		Female		Right buttock
		Female		Knee
7–17	1978	Female	15–30	Buttock	Weeks to 5 years	Farmer, Helwig
		Female		Thigh × 4
		Female		Calf × 4
		Female		Foot × 2
18	1980	Female	33	Right sole	2 months	True, Golitz
19	1982	Female	15	Thigh	7 months	Park et al.
20	1982	Male	42	Heel	5 years	Leonforte et al.
21	1983	Female	36	Left foot	Early teens	Ross, Schwartz
22	1990	Female	42	Right buttock	Long standing	Al-Nafussi, Carder
23	1990	Female	18	Left buttock	4 years	Varma et al.
24	1993	Female	22	Scapula	Long standing	Sabourin et al.
25	1994	Female	20	Scalp	3 years	Sickel et al.
26	1994	Male	28	Left foot	Not stated	Trotter et al.
27	1995	Female	16	Left buttock	Recent	Biernat, Biernat
28	1995	Female	14	Right thigh	10 months	Cortes-Franco et al.
29	1995	Female	19	Right buttock	2 years	Tachibana et al.
30	1995	Female	17	Right sole	2 years	Osada et al.
31	1995	Male	27	Right sole	2 years	Ashton
32	1997	Male	60	Perineal area	2 years	Sidoni et al.
33	1997	Female	11	Left foot	1 year	Innocenzia et al.
34	1999	Female	23	Right lower leg	1 year	Yokozaki et al.
35	2000	Female	12	Sacrococcygeal	Months	Dini et al.
36	2001	Female	13	Sacrococcygeal	1 year	Lee et al.
37	2002	Female	14	Lower abdomen	3 months	Fontaine et al.
38	2002	Male	53	Right cheek	2 years	Ohba et al.
39	2002	Female	18	Abdomen	6-7 months	Vadmal et al.
40	2004	Male	54	Perineum	New discovery	Santos et al.
41	2006	Male	56	Right inguinal area	3 years	Lee et al.
42	2006	Female	41	Umbilicus	3 months	Kim et al.
43	2007	Female	16	Left thigh	1 year	Chong et al.
44	2008	Female	54	Paravertebral	8 years	Businger et al.
45	2008	Male	15	Scrotal area	Recent	Pérez Valcárcel et al.
46	2009	Female	51	Left leg	2 years	Torisu-Itakura
47	2010	Female	13	Right leg	2 years	Bivin et al.
48	2011	Female	25	Not stated	2 years	Gelincik
49	2011	Female	48	Right heel	Several years	Stevens, Sarma
50	2011	Female	14	Right knee	4 years	Ashturkar et al.
51	2012	Female	16	Left thumb	Not stated	Hung et al.
52	2013	Female	15	Right hip	1 year	Rodrigo-Nicolás et al.
53	2014	Female	20	Left knee	10 years	Joehlin-Price et al.
54	2014	Female	22	Pretibial	2-3 years	Joehlin-Price et al.
55	2014	Female	13	Gluteal cleft	1 month	Oh et al.
56	2014	Female	53	Scalp	Lifelong	Reserva et al.
57	2014	Female	38	Popliteal fossa	1 year	Kavishwar et al.
58	2015	Male	14	Scrotum	Not stated	Swarbrick et al.
59	2015	Male	7	Left posterior neck	3 years	Kim, Kim
60	2015	Female	14	Right lower leg	1 year	Keisling et al.