Skin

Okay, so 1st we're gonna go with primary lesions. The 1st one is immacule and a patch, which, uh, it's a flat, non-poppable skin color change. Color may be brown, white, tan, purple or red. 
Immacule is less than one centimeter, and it has a circumcised border, and a patch is greater than one centimeter, and may have any regular border. Examples are freckles, flat moles, batiquier, robola, vitilago, port wine stains, and echimosis. The next primary lesion is a papule and a plaque. 
It's an elevated palpable solid mass with circumscribed border. Plaque may be coalist, papules with a flat top. A papule is less than 0.5 centimeters and a plaque is greater than 0.5 centimeters. 
Some examples of papules are elevated nebbie, warts, lynch and planis, whatever that is, and plaxar psoriasis. Next is a nodule and tumor. And it's an elevated palpable solid mass that extends deeper into the dermis than a papule. 
A nodule is between 0.5 and 2 centimeters, and it's circumscribed, and a tumor is greater than one than 2 centimeters. Tumors do not always have sharp borders. And, um, some examples of nodules are squamisol carcinoma, um, Lipoma. 
And an example for tumors would be a large lymphoma, carcinoma. The next primary lesion is a vesicle inbola, circumcised elevated palpable mass containing serious fluid. A vesicle is less than 0.5 centimeters, and Ebola is greater than 0.5 centimeters. 
Vesicles, some examples would be herpes, some simplex and zoster, varicella, poison ivy, 2nd degree burns, like a blister, Ebola would be large burn blisters, poison ivy, bolus, and potago, contact dermatitis. A wheel is an elevated mass with transient borders, often irregular, size and color vary. It's caused by movement of serious fluid into the dermis, does not contain free fluid in the cavity. 
Um, Some examples of a wheel would be erotica, hives and insect bites. A pustule is a pus filled vesicle or bola. Some examples would be acne and potago, vernicles, and carbuncles. 
Our next primary lesion is a cyst. And it's an encapsulated fluid filled or semi-solid mass in the subcutaneous tissue or dermis. Some examples would be sebaceous cyst or epidermoid cyst. 
All right, so now we're moving on to secondary lesions. Um, so an erosion. It's loss of superficial epidermis that does not extend to the dermis. 
Depressed, moist area. Some examples would be, um, scratch marks, ruptured vesicles. Um, let's see. 
An ulcer is skin loss extending past epidermis, necrotic tissue loss, bleeding and scarring as possible. Um, some examples would be a pressure injury. A fissure is a linear crack in the skin that may extend to the dermist. 
Some examples are chap lips on hands, teenier, PDS, you know, deep cracks in your heels, um, scales is the next secondary lesion. And it's described as flakes, secondary to desquaminated, dead epithelium that may adhere to skin surface. Color varies. 
Silverly white texture varies, thick and fine. So some examples of scales would be dandruffs, psoriasis, dry skin. Uh, the next secondary lesion is crust, and it's dried residue of serum, blood, or pus on skin surface. 
Large, adherent crust is a scab. Um, so it's basically just residue left over, um, from a vesicle rupture, and potagle herpes, or eczema. A scar. is skin mark left after healing of a wound or lesion. 
It represents replacement by connective tissue of the injured tissue. Young scars are red or purple, mature scars are white or glistening. Healed wounds, um, some examples would be healed wound or surgical incision. 
Okay, so a keyloid is a hypertrophied scar tissue secondary to excessive collagen formation during healing, elevated, irregular, and red. Greater incidence in people with darker skin. So an example would be like a keyloid of a ear piercing or a surgical incision. 
A trophy is thin, dry, transparent appearance of epidermis, loss of surface marking, secondary loss of collagen and elastic, underlying vessels may be visible, and that's common in age skin and artilleryal insufficiency. Lithification, um, is thickening and roughening of the skin, or assinuated skin markings that may be secondary to repeated rubbing, irritation and scratching. Um, Example would be contact dermatitis. 
When assessing the nails, you want to make a brief inspection, you know, you want to observe configuration, color and consistency. Um, so bow lines are a transverse depression in the nails. So there are lines going across. 
They may reflect delayed growth of the matrix because of a severe illness or more commonly local trauma. Ridging and hypertrophy, and other changes may be visible because of local, local trauma. Perionchia is an inflammation of the skin around the nail, is usually accompanied by tenderness and redness. 
Um, pitted surface of the nails is a definite indication of psoriasis.