• Alopecia
• Acniform eruptions
• Benign tumors
• Bullous diseases
• Dermoscopy
• Nevi, melanoma
• Nonmelanoma cancer
• Psoriasis and others
• Stds
• Vascular tumors
• Vulvar disease

• Alopecia - Introduction
• Hair loss and Alopecia Introduction
• Alopecia Approach to the Patient
• Hair loss and Alopecia Physical Examination and Testing
• Non-scarring alopecia
• Hair Loss and Alopecia Introduction
• Alopecia Areata Information
• Alopecia areata - Causes and Associated Conditions
• Alopecia Areata Treatment
• Female Pattern Baldness and Hair Loss in Women
• Female Pattern Baldness and Hair Loss Causes
• Female Pattern Hair Loss Evaluation and Testing
• Female Pattern Hair Loss Treatment
• Male Pattern Baldness and Hair Loss Information
• Male Patern Baldness Causes and Hair Loss
• Hair Loss Treatment and Male Pattern Baldness Medicine
• Sudden Hair Loss Telogen Effluvium
• Course of Sudden Hair Loss Telogen Effluvium
• Evaluation and Treatment of Sudden Hairloss Telogen Effluvium
• Loose Anagen Hair Syndrome
• Hair Loss Due To Hair Pulling - Trichotillomania
• Traction Alopecia Hair Loss
• Traction Alopecia Hair Loss Treatment
• Scarring alopecia
• Hair Loss Alopecia With Scarring Information
• Lichen Planopilaris
• Lichen Planopilaris - Clinical Features
• Lichen Planopilaris Treatment
• Discoid Lupus Erythematosus - Clinical
• Discoid Lupus Erythematosus - Histology
• Discoid Lupus Erythematosus - Treatment
• Central Centrifugal Cicatricial Alopecia
• Follicular Degeneration Syndrome
• Folliculitis Decalvans - Clinical
• Folliculitis Decalvans Treatment
• Dissecting Cellulitis of the Scalp
• Dissecting Cellulites Treatment
• Acne Keloidalis Nuchae Information
• Acne Keloidalis Nuchae Treatment

Dissecting Cellulitis of the Scalp

Dissecting cellulitis is an uncommon condition that mainly affects African American adult males. It is one of the occlusion triad, along with hidradenitis suppurativa and acne conglobata. Most patients with dissecting cellulitis do not have the other two conditions in the triad. The disease presents as boggy inflammatory nodules that coalesce with subsequent sinus tract formation usually on the crown and vertex scalp.

Old inactive disease is characterized by areas of scarring alopecia with fibrotic ridges, sinus tracts and comedo formation. Patients complain of drainage of active nodules and the eventual scarring hair loss that occurs. Scalp biopsy in dissecting cellulitis demonstrates deep inflammation (primarily in the subcutis) consisting of lymphocytes, neutrophils and plasma cells. The initial hair loss is a telogen effluvium caused by the massive inflammation. With time the inflammation involves the dermis, including the follicles which are eventually destroyed. Old lesions reveal dermal fibrosis, scarring alopecia and epithelial-lined sinus tracts.