A Case of Disseminated Hypopigmented Keratoses Improved with Oral Acitretin

Table 1

The general characteristics of the cases of DHK reported in the literature.

Year	Author (ref.)	Age	Gender	Site	Age of onset	Histopathology
1991	Morison et al. [1]	19	Female	Trunk, extremities, and dorsa of the hands and feet	19	Mild orthohyperkeratosis and papillomatosis
1991	Morison et al. [1]	5	Female	Extremities and trunk	5	Biopsy was not performed
2013	Kim et al. [2]	4	Female	Arm, leg, and trunk	2	Hyperkeratosis, acanthosis, decreased melanin content, and number of melanocytes
2013	Kim et al. [2]	5	Female	Arm	0	Same with above
2013	Kim et al. [2]	40	Male	Trunk	33	Biopsy was not performed
2013	Kim et al. [2]	70	Female	Trunk	50	Biopsy was not performed
2017	Present case	21	Male	Trunk, extremities, and face	11	Orthohyperkeratosis, irregular acanthosis, and sporadic papillomatosis