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Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.

Vulvar acne, also known as "vulvar Fordyce adenitis", is a condition causing painful bumps on the labia, and it's not always effectively treated with common acne medications, but isotretinoin has shown promise.

Accurate diagnosis of basaloid follicular hamartoma is crucial to avoid unnecessary treatments.

People with pemphigus vulgaris and pemphigus foliaceus often have smaller sebaceous glands on their scalp.

Removing Lrig1-positive cells in mice leads to temporary loss of sebaceous glands.

Stem cells in hair follicles can become neurons and other cells, especially in the upper part, useful for nerve repair.

Polypoid cystitis can mimic bladder cancer but can be effectively treated with surgery, stents, and medication.

Trichofolliculoma, a rare benign hair follicle tumor, can potentially recur.

A woman's male-like symptoms and high testosterone were due to ovarian hilus-cell hyperplasia, which improved after surgery.

Trichoepithelioma and desmoplastic trichoepithelioma have distinct features that can be identified using reflectance confocal microscopy.

A painless cheek lump was misdiagnosed but later identified as a rare benign skin lesion called pilomatrixoma.

A patient with Birt-Hogg-Dubé Syndrome also had choroidal melanoma, suggesting the need for careful eyelid exams in such patients.

Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.

A baby boy with 13q deletion syndrome had eye cancer, a woman's vision improved after stopping a breast cancer drug, a man developed cataracts from using Propecia, and a rare skin disorder called Lipoid Proteinosis was discussed. Also, a tool called OCT is useful for diagnosing macular diseases.

Onychomatricoma is a unique nail tumor, not related to other hair-related tumors.

Hairless mice have longer hair follicles and abnormal structures during the catagen phase.

Epithelial cells from young rat hair follicles grow and form aggregates in culture, but don't produce hair keratin proteins.

Hair follicles form hard α-keratin filaments in four steps, showing structural differences.

A 19-year-old man had a rare skin condition on one side of his face that looked like another skin disease.

New hair regrowth model introduced, imiquimod kills skin cancer cells, T-cadherin loss makes skin cancer more invasive, no strong link between PTCH1 gene and skin cancer after transplant, and male teens more likely to have hereditary hair loss.

Cells from a skin condition can create new hair follicles and similar growths in mice, and a specific treatment can reduce these effects.

A calcified nodule on a boy's face came from hair follicles and expelled calcium through the skin.

A postmenopausal woman's hormone imbalance and symptoms improved after removing benign ovarian tumors.

Birt–Hogg–Dubé Syndrome requires genetic testing for accurate diagnosis due to its similarities with tuberous sclerosis.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Pen-type microwells are best for forming hair follicle germ structures.

Hydrogel microcapsules help create cells that boost hair growth.

Dermal papillae are crucial for hair growth and follicle development.

Rat hair follicle bulge cells can become nerve and glial cells, showing potential for neuroprotection.

A young woman had a rare, usually non-cancerous tumor on her face that was initially mistaken for a different condition.