research Pathologic Quiz Case: An Anterior Neck Mass in a 5-Month-Old Female Infant
The neck mass was a rare benign "wattle," surgically removed for diagnosis and appearance.
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research Multi-dermatomal unilateral nevus comedonicus along the lines of Blaschko: a rare presentation
A rare skin disorder, nevus comedonicus, can appear on one side of the body following Blaschko's lines.
research Solitary Basaloid Follicular Hamartoma: A Report of Two Cases.
Basaloid follicular hamartoma is a rare, benign skin growth often misdiagnosed.
research Folliculosebaceous cystic hamartoma with hair shaft fragments.
A rare ear cyst contained hair fragments.
research Differentiation and Apoptosis in Pilomatrixoma
Pilomatrixoma involves abnormal hair keratin production and cell death, causing debris and cysts.
research Subtle Trichilemmal Carcinoma of Neck Initially Misdiagnosed as Benign Cyst and Ultimately Treated with Mohs Micrographic Surgery
A neck lesion misdiagnosed as benign was later treated successfully with Mohs Micrographic Surgery.
research Desmoplastic melanoma presenting as primary alopecia neoplastica: a report of two cases
Two women were diagnosed with a rare melanoma that looked like hair loss but was actually a type of skin cancer.
research Multiple, hereditary dome-shaped papules and acrochordons. Birt-Hogg-Dube syndrome
The boy likely has a fungal infection causing hair loss.
research Dermoscopy to the rescue
Dermoscopy helps accurately diagnose and treat benign skin cysts.
research Citrulline-containing basal cell carcinomas. Differentiation toward hair structures with induction of dermal hair papillae
Citrulline in certain skin tumors suggests they mimic hair growth, helping distinguish them from other cancer types.
research Successful Treatment of Nipple Adenoma Using Mohs Micrographic Surgery to Preserve the Nipple–Areolar Complex
Mohs surgery effectively treats nipple adenoma while preserving the nipple area.
research Loose anchoring of anagen hairs and pili torti due to erlotinib
Erlotinib can cause hair loss and texture changes.
research Focal perifollicular mucinosis of the eyelid presenting as a benign nevus
A rare skin condition was misdiagnosed as a harmless mole on a woman's eyelid.
research JAAD Grand Rounds quiz∗
The document explains the diagnosis and characteristics of woolly hair nevus and alopecia neoplastica.
research Horn With Miliary Calcification in Squamous Cell Carcinoma
A unique case of skin cancer showed unusual calcification, possibly linked to calcium-binding proteins.
research Coexisting trichorrhexis nodosa and pili annulati: a case report of hair shaft abnormalities in a syrian family
A 23-year-old Syrian woman has two rare hair disorders, and avoiding hair treatments plus using vitamins and minoxidil may help.
research Case report - Hair shaft normalization and hair growth in SPINK5-syndromic epidermal differentiation disorder (Netherton syndrome) while on treatment with dupilumab: a novel therapeutic approach for Trichorrhexis invaginata
Dupilumab improved hair and skin in a woman with Netherton syndrome.
research The clinicopathological spectrum of trichoepitheliomas: a retrospective descriptive study
Trichoepitheliomas can be hard to distinguish from other skin conditions and often start in teenage years.
research Trichofolliculoma: a rare variant of hair follicle hamartoma
Trichofolliculoma is a rare skin bump on the face or scalp.
research Controversial Concepts
The author now believes tricholemmal carcinoma is a rare type of infundibular squamous cell carcinoma and more research is needed on these tumors.
research Seborrheic karatosis, a tumor of the infundibular and isthmus of hair follicles: Identification of hair sheath keratins and histopathological features suggesting hair follicle origin.
Seborrheic keratosis likely originates from the upper regions of hair follicles.
research Pilomatricoma can differentiate not only towards hair matrix and hair cortex, but also follicular infundibulum, outer root sheath and hair bulge
Pilomatricoma can develop into various hair-related structures.
research Trichorrhexis Nodosa
Trichorrhexis nodosa is mainly caused by hair trauma and improves with gentler hair care.
research Rare Case of Alopecia: Alopecia Neoplastica
A rare case of hair loss was linked to breast cancer spreading to the scalp, but treatment was effective.
research Folliculin, the Product of the Birt-Hogg-Dube Tumor Suppressor Gene, Interacts with the Adherens Junction Protein p0071 to Regulate Cell-Cell Adhesion
The protein folliculin, involved in a rare disease, works with another protein to control how cells stick together and their organization, and changes in this interaction can lead to disease symptoms.
research Follicular mucinosis: A detailed morphologic and immunopathologic study
Benign follicular mucinosis involves immune cells attacking hair follicles.
research Trichorrhexis nodosa. Clinical and investigative studies
Trichorrhexis nodosa is mainly caused by hair trauma, not a metabolic defect.
research [Nevoid bundle hairs].
Naevoid bundle hair is an unusual hair growth pattern where multiple hairs fuse together.
research Trichoadenoma of the upper eyelid: case report and literature review
A woman's rare benign eyelid tumor was correctly identified through detailed tissue analysis.
research Epidermal Nevi
Epidermal nevi are skin cell clusters linked to various syndromes.