Tinea%20corporis,%20cruris%20-and-%20pedis Signs and Symptoms

• Dermatophytoses are superficial fungal infections that have different presentations and are named based on location
  
  • Usually with epidermal involvement
  • Affect healthy individuals but unusual or extensive presentations may indicate an underlying immunologic problem

Tinea Corporis (Ringworm)

• Patient usually presents with lesions of varying size, degree of inflammation and depth of involvement found on the trunk, extremities or face excluding the beard area in men
• Lesions are characterized as single or multiple, round or oval, and scaly that have central clearing and elevated reddened edges
• Lesions have sharp, serpiginous, annular, and very irregular borders with a polycyclic pattern
  
  • Papules or pustules may be present on the border 

• Pruritus may or may not be present
• Most common organisms: Microsporum canis, Trichophyton mentagrophytes and Trichophyton rubrum

Tinea Cruris (Jock Itch)

• Lesions found on the groin; may affect the proximal medial thighs and extend to the buttocks and abdomen
  
  • Scrotum and penis tend to be unaffected

• More common in men than women with risk factors including obesity and immunodeficiency
• Red scaling lesions with raised borders have pustules and vesicles at the active edge of infected area
  
  • Maceration is usually present

• Patients usually complain of burning and itching
• Feet may also be affected and become the source of the infection as tinea pedis and tinea cruris have the same causative agents
  
  • Recurrent tinea cruris may be prevented by treating the concomitant tinea pedis infection and other dermatophyte infections

Tinea Pedis (Athlete’s Foot)

• Interdigital
  
  • Most common form of tinea pedis
  • Maceration, fissuring and scaling of the interdigital spaces of the 4th and 5th toes
  • Patient usually complains of itching or burning that is most intense when shoes and socks are removed

• Plantar hyperkeratotic or Moccasin Type
  
  • Sole of foot is typically covered with a fine silvery scale
  • Skin is pink, tender and pruritic
  • Disease takes a chronic course and is resistant to treatment
  • Usually caused by T rubrum & sometimes T mentagrophytes

• Vesicular or vesiculobullous type
  
  • Least common form; primarily on the sides of the feet
  • May mimic acute contact dermatitis but the latter does not affect intertriginous areas
  • Usually caused by T mentagrophytes