Category: Diseases

Mammary Paget’s disease (MPD) is a malignant neoplasm that unilaterally involves the nipple or areola and simulates a chronic eczematous dermatitis; it is associated with underlying intraductal carcinoma of the

Malignant melanomas arising in the mucosal epithelial lining of the respiratory tract, gastrointestinal and genitourinary tracts are very rare, with an annual incidence of .15% per 100,000 individuals. Major sites

Lymphomatoid papulosis is a stubborn persistent rash that usually occurs on the chest, stomach, back, arms and legs. Lymphomatoid papulosis is an asymptomatic, chronic, self-healing, polymorphous eruption characterized by recurrent

Lymphogranuloma venereum (LGV) is an STD caused by Chlamydia trachomatis. Acute LGV in heterosexual men is characterized by a transient primary genital lesion followed by multilocular suppurative regional lymphadenopathy. Women,

Lyme borreliosis (LB) is a complex, multisystem disease caused by the spirochete Borrelia burgdorferi, which is transmitted to humans by the bite of an infected ixodid tick. Lyme disease (LD),

Lupus erythematosus (LE) is the designation of a spectrum of diseases that are linked by distinct clinical findings and distinct patterns of polyclonal B cell immunity. It ranges from life-threatening

Gonorrhea affectes the mucocutaneous surfaces of the lower genitourinary tract, anus, and rectum, and the oropharynx. The most common presentation in males is a purulent urethral discharge. In females, cervical

Leukemia cutis (LC) is a localized or disseminated skin infiltration by leukemic cells. It is usually a sign of dissemination of systemic disease or relapse of existing leukemia. Causes of

Leprosy is a chronic granulomatous disease caused by Mycobacterium leprae and principally acquired during childhood or young adulthood. The skin, mucous membrane of the upper respiratory tract, and peripheral nerves

Lentigo maligna melanoma is the least common (<5%) of the three principal melanomas of white persons [superficial spreading melanoma (SSM), nodular melanoma (NM), and lentigo maligna melanoma (LMM)] and occurs