Lumps and bumps

    Cards (54)

    • Mostest of the grossest
    • Eyelid lesions and tumours
    • E Kruger
    • Glands
      • In caruncle and within eyebrow hairs
      • Sebaceous gland
      • Meibomian gland
      • Gland of Zeis
      • Glands of Moll
      • Endocrine sweat glands
      • Pilosebaceous units
    • Sebaceous gland
      • Modified sebaceous glands in Tarsal plate
      • Single row of 20-30 orifices
      • Synthesize meibum which forms outer layer of tear film
    • Meibomian gland
      • Modified sebaceous glands associated with lash folicles
    • Gland of Zeis
      • Apocrine sweat glands
      • Open into a lash follicle or directly into anterior lid margin between lashes
      • More numerous in lower lid
    • Glands of Moll
      • Throughout eyelid skin
      • Not confined to lid margin
    • https://www.naturaleyecare.com/eye-conditions/meibomian-dysfunction/meibomian.png
    • Self study
    • Kanski pp 39
    • Terminology
      • Clinical
      • Histological
      • Classification
      • Diagnosis
      • Treatment
    • General considerations
      • Non-neoplastic lesions
      • Malignant lesions
    • Non-neoplastic lesions

      • Non-cancerous, non-malignant or benign
      • Sterile vs infective
    • Non-neoplastic lesions
      • Pathogenesis
      • Diagnosis
      • Symptoms
      • Signs
      • Treatment
    • Chalazion (Meibomian cyst)
      • Chronic granulomatous inflammatory (small area of inflammation) lesion
      • Meibomian or Zeis glands
      • Lipid deposition or oil like substance
      • Surrounded by lipid-laden epithelioid cells, multinucleated giant cells and lymphocytes
      • Blepharitis usually involved
    • Malignant lesions
      • Quality of tissue looks irregular
      • Changes are not consistent or predictable
      • Neovascular patterns around and within
      • Bleeding and ulceration of lesion
      • Uncharacteristically large lumps or bumps
    • 15 20 % of periocular skin lesions are Benign lesions
    • Benign lesions

      • Slow growing
      • Less inflamed
      • Shallow (not deep and invasive)
      • Well circumscribed
      • Usually, multiple lesions
    • Chalazion
      • Blockage of meibomian glands (orifices) by sebaceous secretions
      • Caused by retention of normal secretions and granulomatous tissue formation
    • Peanut butter stye...
    • External hordeolum
      • Infection of eyelid glands of Zeiss or Moll
      • Caused by Staphylococcus aureus infection of sebaceous gland opening
    • Internal hordeolum
      • Acute infection of meibomian gland
      • Chalazion with secondary infection with S Aureus
      • More chronic
      • More swollen than stye as tarsal glands are larger
      • NB! Be cautious of preseptal cellulitis
    • Other cysts
      • Cyst of Zeiss
      • Cyst of Moll
      • Epidermal inclusion
      • Epidermoid
    • Cyst of Zeiss
      • Small, non-translucent, obstruction of sebaceous gland ass with eyelash follicle
      • Contains oily secretions
    • Cyst of Moll
      • Retention cyst of lid margin
      • Round, non-tender, translucent and fluid filled
    • Epidermal inclusion
      • Implantation of epidermis into dermis following surgery
      • Slow growing, round and firm
    • Epidermoid
      Developmental along embryonic lines of closure
    • Epidermal inclusion cyst

      • Slow growing
      • Round and firm lesion
      • Common cutaneous lesions, often referred to as epidermoid, epidermal, inclusion or keratin cysts
      • Contain keratinized squamous epithelium and lipids, which may be odorous if ruptured
      • Eyelid lesions are usually solitary, mobile and less than 1 cm
      • May be congenital or may arise from trauma
    • Xanthelasma
      • Common, bilateral
      • Affects middle-aged and elderly individuals
      • Hyperlipidaemia in 1/3 of cases
      • Intracellular fat
    • Pyogenic granuloma
      • Most common acquired vascular lesion to involve the eyelids
      • Fast growing vascularized proliferation of granulation tissue
      • Fast growing, fleshy, red to pink mass which readily bleeds with minor contact
      • Usually occurs after trauma or surgery or it can be idiopathic
      • Painful
      • Differential diagnosis includes Kaposi sarcoma
      • Treatment can include use of steroid to reduce the inflammation or surgical excision at the base of the lesion
    • Molluscum contagiosum
      • Common viral skin disease caused by a large (double stranded) DNA pox virus
      • Infection usually from direct contact in children and sexually transmitted in adults
      • Typical lesion appears as a raised, shiny, white to pink nodule with a central umbilication filled with cheesy material
      • Lesion is approximately 2mm to 3mm in diameter
      • May occur in clusters or groups, particularly in immunocompromised individuals
      • Eyelid lesions may produce a follicular conjunctival reaction
      • Usually spontaneously resolves 3 to 12 months but may be treated to prevent spread or if the lesion is close to the lid margin
      • Treatment: excision, cauterization, cryotherapy, laser
    • Verruca Vulgaris
      • Common cutaneous wart caused by the epidermal infection of the human papillomavirus
      • More common in children and young adults and may occur anywhere on the skin
      • Lesions appear elevated with an irregular, hyperkeratotic papillomatous surface
      • Lesions along lid margin may cause papillary conjunctivitis
      • Tend to be self limiting but if treatment required cryotherapy or surgical excision
    • Squamous cell papilloma
      • Fibrovascular tissue covered by hyperkeratotic squamous epithelium
      • Common benign with range of clinical appearance
      • Incidence increases with age
      • Some cases involve human papilloma virus
      • Treatment: excision or cryotherapy
    • Seborrheic keratosis / Basal cell papilloma
      • Slow growing lesion
      • 'stuck on' appearance
      • Numerous
      • Differential diagnosis: pigmented basal cell carcinoma, naevus, melanoma
      • Treatment: excision, laser ablation, cryotherapy
    • Actinic keratosis
      • Yellowish rough and crusty lesions that tend to bleed easily
      • Pre-malignant: may lead to squamous cell carcinoma
      • Cause: overexposure to the sun
      • Similar look to sebaceous keratosis but looks more greasier that actinic lesions
      • Treatment: Prompt excision = immediate referral
    • Benign pigmented lesions
      • Nevus (Freckle)
      • Congenital melanocytic nevus
      • Intradermal nevus
      • Junctional nevus
      • Compound nevus
      • Strawberry nevus
      • Port-wine stain / Nevus Flammeus
      • Neurofibroma
    • Nevus (Freckle)

      • Small brown macule (1-5 mm)
      • Increased melanin in the epidermal basal layer
      • Sun-exposed skin
      • Can regress completely
    • Congenital melanocytic nevus
      • Small and uniform in colour
      • Kissing or split nevus – upper and lower lid
      • May contain numerous hairs
      • Large lesions have the potential for malignancy
    • Intradermal nevus
      • Most common
      • Older patients
      • Papillomatous lesion with little pigment
      • Confined to dermis with no malignant potential