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The first 25 slides, exactly as they appear. The full deck has 111 content slides.
Dermatology
Cysts
Built from Dermatology, 5th Edition

What’s inside
4 sections · 111 slides
Overview
- What this topic covers
- Three ways to sort a cutaneous cyst
- Key features of cutaneous cysts
- The myth of the 'sebaceous cyst'
- Diagnostic approach to a cutaneous cyst
- A reference table of the three categories
- The three main categories of cutaneous cyst.
- The three main categories of cutaneous cyst. (continued)
- The three main categories of cutaneous cyst. (continued)
Cysts With a Stratified Squamous Lining
Skin-type epithelium, the largest and most familiar group
- Epidermoid cyst: the most common skin cyst
- Two follicular pores in an epidermoid cyst
- Where the name 'infundibular cyst' comes from
- Anatomic origin of follicular cysts
- Conditions linked to multiple epidermoid cysts
- Multiple scrotal cysts and calcification
- Scrotal calcinosis from epidermoid cysts
- How epidermoid cysts cause problems
- From follicle disruption to painful rupture
- Inflamed, ruptured epidermoid cyst
- What the biopsy shows
- Histopathology of an epidermoid cyst
- Treating an epidermoid cyst
- Dilated pore of Winer
- Milia: tiny superficial cysts
- Milia in newborns
- Milium of the nipple
- When milia are a clue to something else
- Multiple milia in epidermolysis bullosa
- Pathology and treatment of milia
- Tricholemmal (pilar) cyst
- Tricholemmal versus proliferating tricholemmal cyst
- Why the wall looks different under the scope
- Histopathology of a tricholemmal cyst
- Diagnosis and treatment of a tricholemmal cyst
- Verrucous cyst
- Proliferating tricholemmal cyst
- Proliferating tricholemmal cyst of the forehead
- Large proliferating tricholemmal cyst of the scalp
- How pathology tells this apart from cancer
- Histopathology of a proliferating tricholemmal cyst
- Treatment of a proliferating tricholemmal cyst
- Proliferating epidermoid cyst
- Pathology and treatment
- Vellus hair cysts
- Eruptive vellus hair cysts of the thigh
- Diagnosis at the bedside
- Histopathology of a vellus hair cyst
- Treatment of vellus hair cysts
- Steatocystoma: the only true 'sebaceous cyst'
- Steatocystoma multiplex, clinical and histologic features
- Steatocystoma multiplex of the arm
- Pathology and a related 'no-sebaceous-gland' variant
- Treatment of steatocystoma
- Follicular hybrid cyst
- Pigmented follicular cyst
- Dermoid cyst
- Ear pit (preauricular cyst)
- Syndromes linked to ear pits
- Pilonidal cyst
- Related conditions and treatment
Cysts With a Non-Stratified Squamous Lining
Gland- and duct-type linings, often congenital in origin
- Hidrocystoma: two sweat-gland-related cysts
- Apocrine hidrocystoma of the eyelid
- Apocrine hidrocystoma near the eye
- Eccrine hidrocystomas of the eyelid and cheek
- Apocrine versus eccrine hidrocystoma
- What the biopsy shows in each type
- Histopathology of an apocrine hidrocystoma
- Histopathology of an eccrine hidrocystoma
- Treating a hidrocystoma
- Bronchogenic cyst
- Pathology and treatment of bronchogenic cyst
- Thyroglossal duct cyst
- What confirms the diagnosis on biopsy
- Histopathology of a thyroglossal duct cyst
- Additional histopathology of a thyroglossal duct cyst
- Branchial cleft cyst
- Pathology and treatment
- Cutaneous ciliated cyst and ciliated cyst of the vulva
- Pathology, look-alikes, and treatment
- Histopathology of a ciliated cyst of the vulva
- Median raphe cyst
- Omphalomesenteric duct cyst
- Omphalomesenteric duct cyst, clinical and histologic features
- Pathology, look-alikes, and treatment
- Urachal cyst
Cysts Without an Epithelial Lining
'Pseudocysts' - cystic spaces with no true lining at all
- Mucocele
- Mucocele of the lower lip
- A short-lived variant: superficial mucocele
- Pathology and treatment of mucocele
- Digital mucous cyst (pseudocyst)
- Digital mucous cysts, three examples
- Digital mucous cysts of the toes
- What the biopsy shows
- Histopathology of a digital mucous cyst
- Additional histopathology of a digital mucous cyst
- Treatment of digital mucous cyst
- Ganglion (ganglion cyst)
- Ganglion cyst of the wrist, clinical and histologic features
- Pathology and treatment of a ganglion
- Pseudocyst of the auricle
- Pseudocyst of the auricle
- Treatment of a pseudocyst of the auricle
- Cutaneous metaplastic synovial cyst (pseudocyst)
- Putting it together: how to think about a cyst
- Recurring red flags to remember
- References
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- Dermatology, 5th Edition (2-Volume Set)