Paget's disease of the breast differential diagnosis

Paget's disease of the breast Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Suveenkrishna Pothuru, M.B,B.S. [2]

Overview

Paget's disease of the breast must be differentiated from atopic dermatitis, eczema, psoriasis, malignant melanoma, Bowen's disease, basal cell carcinoma, and pagetoid dyskeratosis.

Differential Diagnosis

Paget’s disease of the breast must be differentiated from other benign and malignant processes of nipple-areola complex such as:

• Atopic dermatitis
• Chronic contact dermatitis
• Lactiferous duct ectasia
• Chronic eczema
• Psoriasis
• Nipple duct adenoma
• Malignant melanoma
• Bowen’s disease
• Superficial basal cell carcinoma
• Pagetoid basal cell carcinoma
• Benign intraductal papilloma
• Pagetoid dyskeratosis

Category	Diseases	rowspan="4" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Benign or Malignant	Etiology	colspan="9" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Clinical manifestations	colspan="2" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Para-clinical findings	rowspan="4" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Gold Standard	Associated factors
		colspan="7" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Symptoms		colspan="2" rowspan="2" style="background: #4479BA; color: #FFFFFF; text-align: center;"	Physical examination
		Lab Findings	Histopathology
		Rash			Nipple Discharge	Erythema	Single/ Multiple		Involved areas	Mastalgia			Breast Exam	Other	Serum IgE
	Eczema		Scalp, face, trunk, postauricular, diaper area and axilla		+		–	+			Nl	Focal parakeratosis and spongiosis in epidermis Psoriasiform hyperplasia Neutrophils at the margins	Risk factors include Stress Cold, dry weather can cause flare ups Superinfection with bacteria and candida Generalized seborrheic erythroderma in immunodeficient patients
Skin disorders	Atopic dermatitis	Benign	Epidermal barrier dysfunction Immune dysregulation	Erythema, exudates, papules,vesicles, scales and crusts Infiltrated erythema, prurigo, scales and crusts		–	Multiple	+	Young children -Scalp, cheeks amd extensor surface Adolescents -flexural areas and buttock-thigh creases Adults - facial involvement and skin flexures	–		Centrofacial pallor Delayed blanch response Keratosis pilaris Palmar hyperlinearity Pityriasis alba Ichthyosis Infra-auricular and retro-auricular fissuring Nipple eczema White dermographism Perifollicular accentuation	↑	Epidermal psoriasiform hyperplasia Marked intercellular edema with spongiotic vesiculation Hyperkeratosis Psoriasiform hyperplasia Dyskeratosis		Family history of atopic dermatitis or other atopy Personal history of atopy (asthma, allergic rhinitis, food allergy) Active and passive exposure to tobacco
	Allergic contact dermatitis	Benign	Delayed-type hypersensitivity response Skin inflammation mediated by hapten-specific T cells	Erythematous well-demarcated papules		–	May be multiple after 1-2 days of exposure	+	Surrounding the area in contact with the offending agent	+		Stinging and burning Localized swelling Lichenified pruritic plaques	Nl	Eosinophilic spongiosis and microvesicles Exocytosis of eosinophils and lymphocytes Chronic - Hyperkeratosis and parakeratosis		Contact with allergens in the past 1-2 days Positive family history
	Psoriasis	Benign	Keratinocyte hyperproliferation Dysregulation of the immune system	Well-circumscribed, pink papules and symmetrically distributed cutaneous plaques with silvery scales		+	Multiple	+	Scalp Trunk Gluteal cleft Extensor surface of elbows and knees	+		Auspitz's sign (pinpoint bleeding)	Nl	Epidermal hyperplasia Parakeratosis Neutrophils microabscesses (Munro microabscesses)		Risk factors include Smoking Skin trauma Alcohol abuse Stress Cold weather Vitamin D deficiency
	Malignant melanoma
	Bowen’s disease
	Superficial basal cell carcinoma
	Pagetoid basal cell carcinoma
	Benign intraductal papilloma
	Pagetoid dyskeratosis
	Lactiferous duct ectasia	Benign	Common among perimenopausalwomen Usually resolve spontaneously											Distention of subareolar ducts	Ultrasound: Dilated milk ducts Fluid-filled ducts
	Nipple duct adenoma
	Benign Toker cell hyperplasia
	Breast abscess	Benign								+	Localized inflammation of breast Tenderness				Ultrasound: Fluid collection
	Mondors disease
	Mastitis	Benign No increased risk of malignancy						+		±	Breasttenderness Swollen breasttissue			Breast parenchymainflammation: Acute mastitis: Staphylococcus infection Granulomatous mastitis: Tuberculosis or sarcoidosisinfection	Ultrasound: Ill-defined area with hyperechogenicity with inflamed fat lobules Skin thickening
	Inflammatory Breast Cancer