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Feline cutaneous asthenia is a rare inheritable skin disease of cats characterised by abnormal elasticity, stretching, and improper healing of the skin. Pendulous wing-like folds of skin form on the cat's back, shoulders and haunches. Even stroking the cat can cause the skin to stretch and tear.
Haemolacria can manifest as tears ranging from merely red-tinged to appearing to be entirely made of blood, [1] and may also be indicative of a tumor in the lacrimal apparatus. It is most often provoked by local factors such as bacterial conjunctivitis , environmental damage or injuries. [ 2 ]
The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood.
More specifically, it affects the dermis by preventing the fibroblasts from forming collagen and elastin fibers necessary to keep rapidly growing skin taut; this can create a lack of supportive material as the skin is stretched, and lead to dermal and epidermal tearing, which in turn can produce scarring in the form of stretch marks. This is ...
Other symptoms to note: Acne is the most common skin condition affecting Americans, Dr. Zeichner says, so you likely have experience with pimples already. The causes vary, but are often rooted in ...
The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3] Within the latter type, the hairs occur in structures called pilosebaceous units , each with hair follicle , sebaceous gland , and associated arrector pili muscle. [ 4 ]
It is most common on skin exposed to mechanical abuse—wear and tear—such as the upper and lower extremities. Patients experience papules, pustules, or even plaques and nodules at the infection site. [3] The white to red papules and pustules often have a perifollicular location. Hair shafts can be easily removed from the pustules and papules ...
HERDA is characterized by abnormal skin along the back that tears or rips easily and heals into disfiguring scars. The skin is loose, and hyper-elastic in affected horses. This collagen based abnormality affects their heart valves too and their mechanical properties are found to be inferior to native horses. [2]