Dermatology
- Xanthomas: Differentiating atherogenic from nonatherogenic
The patient had tendinous xanthomas on the dorsal joints of the hand and eruptive xanthomas on the buttock, as well as xanthoma striatum palmare on the volar aspect of the hand.
- Mondor disease of the breast
A 43-year-old woman had 2 weeks of pain and skin tightness over the right breast. Ultrasonography revealed a noncompressible, dilated, subcutaneous vein without flow.
- Atypical erythema as a clinical presentation of tinea incognito
The lesions were originally diagnosed as contact allergic dermatitis and treated with topical corticosteroids, but culture revealed Trichophyton rubrum.
- Skin-colored papules on the cheeks, acrochordons on the axillae
Biopsy revealed dermal follicular structures surrounded by a perifollicular fibrous sheath and a densely fibrous stroma, consistent with a fibrofolliculoma.
- Spider nevi secondary to alcoholic chronic liver disease
The lesions blanched when pressure was applied centrally and refilled from the center outward when pressure was released.
- Pigmented lesion on nail bed: Pseudo-Hutchinson sign
The discoloration had been present since the patient was 14, and it had not changed in appearance.
- Spotty skin pigmentation in Carney complex
Characteristic skin findings and their locations can indicate underlying hereditary lentiginosis syndromes.
- A brownish erythematous patch in the nipple-areola complex
Biopsy revealed neoplastic cells throughout the epidermis and granular layer, with abundant pale cytoplasm, intraglandular extension, and chronic inflammation in the papillary dermis.
- Oral hyperpigmentation with weakness and salt-craving
The patient’s primary care physician had attributed the hyperpigmentation on the lower lip and inner cheek to pen ink.
- Potential systemic benefits of shocking or blocking nerves
What has really caught my attention is the expanding research on controlled regional neuromodulation and its impact on systemic physiology and inflammation.