Keloid

Keloid
Diagnosis in short
Keloid. H&E stain.
LM	thick collagen bundles - surrounded by paler staining fibroblasts, loss of adnexal structures
LM DDx	hypertrophic scar
Site	skin
Clinical history	typically dark skinned individuals
Prognosis	benign

Hypertrophic scar redirects here.

Keloid is an uncommon abnormal scarring.

General

• Sites of previous trauma/surgery, esp. in dark skinned individuals.

Note:

• Reported as "keloidal-type collagen"; the clinician decides between hypertrophic scar and keloid.

Microscopic

Features:

• Thick collagen bundles - surrounded by paler staining fibroblasts - key feature.
• Lesion replaces adnexal structures, e.g. hair, sweat glands.

DDx:

• Hypertrophic scar.

Images

• 

  Keloid - low mag. (WC/Nephron)

• 

  Keloid - intermed. mag. (WC/Nephron)

• 

  Keloid - high mag. (WC/Nephron)

www:

• Keloid (ucsf.edu).

Sign out

SKIN LESION, LEFT SCAPULA, EXCISION:
- DERMAL SCAR WITH KELOIDAL-TYPE COLLAGEN, SEE COMMENT.

COMMENT:
The findings are consistent with a hypertrophic scar or keloid; clinical correlation is required.

Clinical provided

SKIN LESION, LEFT NIPPLE AREOLA, EXCISION:
- DERMAL SCAR WITH KELOIDAL-TYPE COLLAGEN, CONSISTENT WITH HYPERTROPHIC SCAR.

See also

• Non-malignant skin disease.

References

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