The skin and systemic diseases

What is a characteristic rash associated with herpes simplex virus, mycoplasma, pneumonia, and hepatitis B/C?

Which skin reaction is associated with infections and includes Gianotti-Crosti syndrome?

In which condition does the rash start on the trunk and then spreads to the limbs, looking 'morbilliform' (measles-like)?

Which underlying systemic disease is associated with Pyoderma gangrenosum?

What condition may present with a reactive rash consisting of maculopapular erythema that blanches and can be mildly itchy?

Which skin reaction is associated with Streptococcal infection, TB, sarcoid, pregnancy, IBD, and Behcet disease?

'Erythema Multiforme' is characteristic of which underlying disease?

What type of hypersensitivity reaction is thought to result in Erythema Multiforme?

Which infection can be associated with Erythema Multiforme?

What is the classic cutaneous manifestation of Erythema Multiforme Major?

What treatment might be used for extensive cutaneous Erythema Multiforme?

Which hormonal condition can cause hyperpigmentation?

Which condition can lead to localized hypopigmentation?

What is the predominant symptom associated with Erythema Multiforme Minor?

Which skin condition is characterized by symmetrical velvety dark plaques usually affecting the neck, axillae, and arm flexures?

What does 'necrobiosis' in necrobiosis lipoidica indicate?

Which of the following is a common association of necrobiosis lipoidica?

What may rapidly evolving acanthosis nigricans involving the lips, tongue, and palms indicate?

Which skin condition may improve by excluding ultraviolet light with daily sunblock application?

What is a recommended diagnostic test for rapidly evolving acanthosis nigricans?

'Replacement of degenerating collagen fibers with lipid material' is a characteristic feature of which skin condition?

What is the characteristic feature of piebaldism?

Which enzyme deficiency causes albinism?

What skin condition is characterized by localized depigmentation that is sharply demarcated and symmetrical?

Which disease is associated with acanthosis nigricans due to the deposition of bile salts from liver disease, iron salts, drugs, or metallic salts?

What is a common cause of post-inflammatory pigmentation?

In malabsorption syndromes, pellagra, and scurvy, what skin manifestation is commonly observed?

What condition is characterized by cutaneous T-cell lymphoma?

Which skin condition is characterized by telangiectasia, reticulate pigmentation, atrophy, and loss of pigment?

In which skin condition is there a gradual progression to infiltrated lesions, nodules, ulceration, and occasionally erythroderma in Sezary syndrome?

Which pregnancy dermatosis usually starts in the striae of the abdomen during the third trimester and can become widespread?

Which skin condition may initially resemble Polymorphous eruption of pregnancy but then develops pemphigoid-like vesicles spreading over the abdomen and thighs?

Which skin condition is benign and presents as a non-specific pruritic papular rash that arises during pregnancy?

Which etiology is associated with Poikiloderma?

What is a distinguishing feature of Polymorphous eruption of pregnancy (PEP) compared to other pregnancy dermatoses?

Which skin condition has a greater prevalence of premature and small-for-dates babies and a high recurrence rate?

What distinguishes Pemphigoid Gestationis from Polymorphous eruption of pregnancy?

Which skin feature may be observed with Poikiloderma?