Classic Example
Trichofolliculoma
Wed, 08/25/2010 - 05:07 — Mitsuhiro Sugiura M.D., Ph.D.A 52-year-old hispanic female presented with a small dome-shaped nodule with protruding trichoids on the nose.
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Bowen’s disease (Squamous cell carcinoma in situ)
Fri, 07/09/2010 - 05:24 — Mitsuhiro Sugiura M.D., Ph.D.A 78-year-old female presented with an erythematous crusted palque-like lesion on the right dorsal foot.
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Histrogical findings : Hyperkeratosis with parakeratosis is overlying the full-thickness dysplastic epidermis with loss of maturation and lack of polarity of cells. The tumor cells contain marked irregular hyperchromatic nuclei with conspicuous nucleoli and abundant cytoplasm. Individually keratinized cells are also seen.
Tuberculosis verrucosa cutis
Sat, 07/03/2010 - 11:25 — Adanderma .This 61-year- old male patient presented with asymptomatic skin lesion on the middle finger of the left of 10 months duration.
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Gout
Thu, 06/24/2010 - 14:08 — Artur Zembowicz M.D. Ph.D.54-year-old man. Helix of left ear. History of gout.
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Lichen nitidus
Wed, 06/23/2010 - 13:46 — Artur Zembowicz M.D. Ph.D.9-year-old boy with approximately 100 flesh-colored papules on back.
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Darier’s disease
Tue, 06/15/2010 - 16:23 — Adanderma .This 44-year-old male presented with hyperkeratotic papules on the forehead, neck, behind the ear and in the groin area. Small depigmented macules on the trunk and upper limbs were also noted as well as skin colored flat surfaced papules on the dorsa of the hands and feet. Palmoplantar pitting and nail changes were also present.
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PLEVA with increased CD30+ cells
Sat, 06/12/2010 - 14:16 — Stephen Lyle, M.D., Ph.D.68-year-old man with a three-year history of an indolent rash which appears approximately every two months. PLEVA versus lymphomatoid papulosis.
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Spitz tumor (borderline lesion)
Wed, 06/09/2010 - 13:09 — Artur Zembowicz M.D. Ph.D.57-year-old man; lower back lesion
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Periurethral cyst
Tue, 06/08/2010 - 02:34 — Mitsuhiro Sugiura M.D., Ph.D.A 40-year-old man presented with a soft cystic nodule lateral to the urethral meatus on the foreskin.
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Histological examination shows the cyst is lined by transitional epithelium.
Histological examination shows a cystically dilated follicle communicating with the epidermis. Numerous secondary follicles are present.