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Hair matrix cysts are rare skin nodules with unique features, often needing surgical removal.

The research suggests that p63 and TGF-β1 may help determine tumor type and malignancy in hair follicle and sebaceous tumors.

Isotretinoin effectively treats severe acne but can cause significant side effects like dry skin and hair loss.

Trichilemmal carcinoma can spread to the parotid gland and be diagnosed using fine-needle aspiration cytology.

A young man was unexpectedly diagnosed with basal cell carcinoma after a scalp examination and confocal microscopy.

New treatments targeting skin stem cells show promise for skin repair, anti-aging, and cancer therapy.

New treatments targeting the Hedgehog pathway can help treat advanced skin cancer but may have side effects and their effectiveness in early stages is unknown.

Some patients with a type of skin lymphoma can experience a rare, non-scarring hair loss that looks like another hair loss condition but has distinct features.

The study found that analyzing certain cell signaling pathways is not a reliable method to tell apart two types of skin tumors.

A rare type of skin cancer on the scalp can be mistaken for hair loss, causing delayed diagnosis and severe damage.

CD3+ T-cell presence is a reliable marker to tell apart alopecia areata from pattern hair loss.

Keratin is crucial for keeping skin cells healthy and its changes can lead to diseases and affect cell behavior.

Both parties agree that cell death is important in the hair cycle, but they have different views on the role of the catagen phase and hair shedding.

The conclusion is that accurately replicating the complexity of the extracellular matrix in the lab is crucial for creating realistic human tissue models.

The study found that horizontal sections of scalp biopsies are better for analyzing hair loss, showing fewer hairs and more fine hairs in balding areas.

Giant solitary trichoepithelioma is a rare, usually non-cancerous hair follicle tumor that can sometimes turn into skin cancer.

Some chemotherapy can cause permanent hair loss.

Chemotherapy can cause permanent, non-reversible hair loss similar to pattern baldness.

Hair follicle hyperplasia is common in both benign and malignant skin lymphoproliferative disorders, with a proposed new term "pseudolymphomatous adnexitis."

Steven Kossard classified lymphocyte-related hair loss into four patterns, each linked to different types of baldness.

The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.

Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.

Trichoepitheliomas can be hard to distinguish from other skin conditions and often start in teenage years.

A man had rare skin tumors with bone formation and cholesterol deposits.

Skin aging reflects overall body aging and can indicate internal health conditions.

A rare benign skin nodule was found on the buttock, a unique location for this condition.

A woman's rare benign eyelid tumor was correctly identified through detailed tissue analysis.

The document concludes that the development of certain tumors is influenced by genetic background and that a specific gene modification can lead to tumor regression and reduced growth.

Some breast cancer patients developed permanent hair loss after chemotherapy and hormonal therapy, showing patterns similar to common baldness and alopecia areata.

Certain human skin cells marked by CD44 and ALDH are rich in stem cells capable of long-term skin renewal.