And 4) eccrine poromas are eccrine sweat gland tumors that consist of three cell types (see Histopathology section).Poromas usually occur as single, small, skin tumors that develop in middle aged to elderly individuals. They may occur anywhere on the body, but are most commonly seen on the head, neck, and extremities. They seldom cause symptoms. While benign, long-standing poromas have, in very rare cases, progressed to malignant forms termed porocarcinomas. Poromas are treated by excision; their removal is almost always curative. Presentation
Poromas are rare tumors that in two large review studies represented 0.0058% and 0.134% of all skin tumors; dermal duct tumors are the rarest form of the poromas, representing only 3.3% of these tumors in 3 studies examining 675 poroid neoplasms. They usually occur in the elderly population (mean age 65.1–66.6 in different studies) as small (<2 centimeters), solitary dome-shaped papules, plaques, or nodules, that are skin-colored, pink, red, white, or blue and range from smooth to wart-like, ulcerative,  or pyogenic granuloma-like lesions. They may be located on the palms of the hands, soles of the feet, trunk, face, neck, or other cutaneous surfaces such as the areola, nipple, or other areas of the breast, on the scrotum, or on the vulva.
Hydrometra is a genus of water measurers in the family Hydrometridae. There are more than 120 described species in Hydrometra. See also
List of Hydrometra species

References
Further reading


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