Fine reticular pigmentation with palmar pits are seen in -
Fine reticular pigmentation with palmar pits is characteristic of downing Degos disease Dowling-Degos disease (DDD) is a type of reticulate pigmentary disorder in which hyperpigmented macules are found in the flexures. Iadvl text book of dermatology, page 737
Dowling - Degos disease
Rothmund thornpson syndrome
Cockyane syndrome
Bloom's syndrome
miscellaneous