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The lip may become scaly and indurated as AC progresses. When palpated, the lip may have a texture similar to rubbing the gloved finger along sandpaper. [7] AC may occur with skin lesions of actinic keratosis or skin cancer elsewhere, particularly on the head and neck [6] since these are the most sun exposed
Barnacle adults are sessile; most are suspension feeders with hard calcareous shells, but the Rhizocephala are specialized parasites of other crustaceans, with reduced bodies. Barnacles have existed since at least the mid-Carboniferous, some 325 million years ago. In folklore, barnacle geese were once held to emerge fully formed from goose ...
Photographic Comparison of: 1) a canker sore – inside the mouth, 2) herpes labialis, 3) angular cheilitis and 4) chapped lips. [4]Chapped lips (also known as cheilitis simplex [5] or common cheilitis) [6] is characterized by the cracking, fissuring, and peeling of the skin of the lips, and is one of the most common types of cheilitis.
Fordyce spots on scrotum Fordyce spots on lips. On the shaft of the penis, Fordyce spots are more visible when the skin is stretched, and may only be noticeable during an erection. [8] The spots can also appear on the skin of the scrotum. [8] Oral Fordyce granules appear as rice-like granules, white or yellow-white in color.
The barnacle creates a crown-shaped shell, and in most instances, deeply embeds itself into the skin for stability while riding a fast-moving host. The shell plates are made of calcium carbonate and chitin. Whale barnacles may live for up to a year, and often slough off along migration routes or at whale calving grounds.
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"The goose-tree" from Gerard's Herbal (1597), displaying the belief that goose barnacles produced barnacle geese.. In the days before birds were known to migrate, barnacle geese, Branta leucopsis, were thought to have developed from this crustacean through spontaneous generation, since they were never seen to nest in temperate Europe, [4] hence the English names "goose barnacle" and "barnacle ...
Acorn barnacle and acorn shell are vernacular names for certain types of stalkless barnacles, generally excluding stalked or gooseneck barnacles. As adults they are typically cone-shaped, symmetrical, and attached to rocks or other fixed objects in the ocean.