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A bite is defined as coming from the mouthparts of the arthropod. The bite consists of both the bite wound and the saliva. The saliva of the arthropod may contain anticoagulants, as in insects and arachnids which feed from blood. Feeding bites may also contain anaesthetic, to prevent the bite from being felt.
Blisters in particular can cause a feeling of desire to pull or bite off the affected skin and nails (since the skin is dead, thus easily pulled off), which could be detrimental, causing infection. Another disorder, known as excoriation disorder, the repetitive action of uncontrollably picking at one's skin, can sometimes accompany dermatophagia.
Onychonycteris finneyi was the strongest evidence so far in the debate on whether bats developed echolocation before or after they evolved the ability to fly. O. finneyi had well-developed wings, and could clearly fly, but lacked the enlarged cochlea of all extant echolocating bats, closely resembling the old world fruit bats which do not echolocate. [1]
Sporotrichosis, also known as rose handler's disease, [2] is a fungal infection that may be localised to skin, lungs, bone and joint, or become systemic. [2] [4] It presents with firm painless nodules that later ulcerate. [3] Following initial exposure to Sporothrix schenckii, the disease typically progresses over a period of a week to several ...
A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]
Clubbing (drumstick fingers, Hippocratic fingers, watch-glass nails) Congenital onychodysplasia of the index fingers; Disseminate and recurrent infundibulofolliculitis; Erosive pustular dermatitis of the scalp (erosive pustular dermatosis of the scalp) Erythromelanosis follicularis faciei et colli; Folliculitis decalvans; Folliculitis nares ...
The tick bite itself will likely be so small and painless (just a little red dot, if anything) that you won’t actually notice it, says Qurat Mudassar, MD, an infectious disease specialist and ...
The nodule that appears early in the disease can resemble a bug bite, sebaceous cyst, lipoma, onchocerciasis, other mycobacterial skin infections, or an enlarged lymph node. [4] Skin ulcers can resemble those caused by leishmaniasis , yaws , squamous cell carcinoma , Haemophilus ducreyi infection, and tissue death due to poor circulation. [ 4 ]