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Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.

Citrulline in certain skin tumors suggests they mimic hair growth, helping distinguish them from other cancer types.

Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.

A young man's cheek papule was identified as a benign hair follicle tumor using a skin surface microscope.

Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.

Increased blood vessel growth in lichen planopilaris may signal active disease needing aggressive treatment.

The study created hair-bearing skin models that lack a key protein for skin layer attachment, limiting their use for certain skin disease research.

Matrical tumors share a common growth mechanism involving the Wnt pathway and consistent PHLDA1 expression.

The created skin model with melanoblasts improves the study of skin color and offers an alternative to animal testing.

AFM can help diagnose lichen planopilaris by identifying specific hair structure changes.

Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.

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

A 29-year-old man had a jaw plaque diagnosed as follicular mucinosis, linked to nestin-positive hair follicle stem cells.

Certain genes help dermal papillae cells in hair follicles grow and group together.

Nevus sebaceous is identified by unique skin changes, including thickened skin, fewer hair follicles, and many sebaceous glands.

A man with rare skin changes on his fingers was diagnosed with multiple myeloma-linked amyloidosis.

Researchers created long-lasting, diverse skin organoids from mouse hair follicle stem cells, useful for studying skin.

Rat vibrissae structure relates to their sensory function.

Skin lesions in Carney complex are likely caused by a specific group of skin cells that promote pigment production due to a genetic mutation.

Tiny infundibular cysts are the main lesions in chloracne, not comedones.

Pigmented papules on the ear can be a rare skin condition called cutaneous amyloidosis, treatable with topical tretinoin.

A new pair of mouse keratins, 65 kD and 48 kD, are found in specific skin areas and are linked to a unique skin differentiation type.

Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.

Keratoacanthoma and some squamous cell carcinomas are linked to hair follicles, while others are not.

Alpaca skin has glands, hair follicles, and different collagen types.

Yellow dots look different in various hair loss conditions and can help diagnose them.