Search results
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Lentigo Maligna
General Information Lentigo Maligna, also known Hutchinson’s Freckle is a type of malignant melanoma (skin cancer). Typically occurring on sun damaged skin in middle-aged and elderly patients, usually appearing on the face. Lentigo maligna (accounting for about 10% of cases diagnosed) is one of the four main subtypes of invasive melanoma, which include superficial spreading […]
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Lichen Amyloidosis
General Information Lichen Amyloidosis has been found to be linked endocrine neoplasia type 2A (MEN 2A) also known as Sipple syndrome. Lichen amyloidosis is usually localized to the interscapular region consisting of lichenoid papules with hyperpigmentation and fine scaling. It is found in the papillary dermis, usually at the tip of the dermal papillae. The […]
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Lichen Planus
General Information Lichen Planus (LP) is a common skin condition that causes pruritic reddish-purple, shiny flat-topped bumps. The sizes of the papules may vary from small pin point to larger then a centimeter. White lines may develop on the bumps called Wickham’s striae. LP may affect any area of the body, but is frequently noted […]
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Lichen Sclerosus Et Atrophicus
General Information Lichen Sclerosus et Atrophicus is a chronic skin disease that causes pale to white plaques with epidermal atrophy. LSA may appear on areas such as the neck, under the breast, in folds of the body, and in the perianal and vulva. Itching may occur in some patients, but it is not common. If […]
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Lichen Simplex Chronicus
General Information Lichen Simplex Chronicus (LSC) is considered more of a symptom than a disease. A proposed variant of LSC is lichen amyloidosis. The disorder begins when something rubs or irritates the skin and it becomes pruritic thus beginning a cycle of itching and scratching. When prolonged scratching to the affected area occurs, the skin […]
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Lichen Striatus
General Information Lichen Striatus is a self-limited linear rash appearing often on an extremity. The small papules, which may be smooth, scaly or flat topped are red, tan or the same color of the flesh. Lichen Straitus is usually asymptomatic; the most common complaint with patients is pruritus. The eruption normally grows over a few […]
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Lipoma
General Information Lipoma is a benign tumor that develops from fat cells. This slow growing tumor has a clinical appearance of a lump under the skin. When a Lipoma is softly pressed on, the lump is moveable under the fingers with a soft doughy feel to it. Lipomas are normally located around the neck area, […]
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Majocchi’s Granuloma
General Information Majocchi’s Granuloma is an uncommon infection of the dermal and subcutaneous tissue by dermatophytes. The most common cause of the infection is by a fungus called Trichophyton rubrum (an anthropophilic dermatophyte). Two forms of Majocchi’s granuloma exist: Follicular type – caused by trauma or a topical used, subcutaneous type – immunocompromised hosts. MG […]
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Melanoma
General Information As chronicled in Steinbeck’s famous novel, the best conceived plans can go awry as in the examination of melanocytes by frozen section pathology. Sub-optimal preservation, freeze artifact, overlapping histologic criteria between melanocytes and confusion with other resident epidermal cells may all conspire to render the evaluation of these lesions problematic. For these reasons […]
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Merkel Cell Carcinoma
General Information Merkel cell carcinoma, otherwise referred to a trabecular carcinoma, is an uncommon yet deadly dermal neoplasm potentially confused with other cutaneous neoplasms. Like its more common cancerous counterparts in the skin, it most commonly occurs in the sun-exposed sites of elderly patients and is predisposed for by ionizing radiation as well as waning […]