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. 2021 Jan 16;12(1):142–146. doi: 10.4103/idoj.IDOJ_348_20

Table 1.

Differential diagnoses of multiple pyogenic granulomas

Examination Dermoscopy Histopathology
Pyogenic granuloma Usually single or rarely multiple reddish or skin-colored papulo-nodules White/red homogenous stuctureless area, white rail lines, ulceration, white collarete Vascular proliferation in lobular fashion. Fibrous septations, inflammation and edema.
Bacillary angiomatosis Mutiple reddish or brown papules or subcutaneous lumps
Dramatic response after antibiotic therapy
- Single or multinodular proliferations of capillaries with inflammatory infiltrate. Extracellular deposits of hemotoxylin grain material. Leucocytoclasis seen.
Kaposi's Sarcoma (nodular) Numerous dome shaped skin colored or erythematous nodular lesions Bluish reddish coloration, polychromatic rainbow pattern with surface scales and brown clods. Honey comb like network of blood filled spaces/slits closely associated with spindle cells woven between delicate vascular spaces.
Angio-keratoma Single or multiple reddish, bluish-black keratoticpapulo-nodules Red lacunae, dark blue lacunae, whitish veil Acanthosis, hyperkeratosis, multiple blood-filled ectatic, and congested thin-walled blood vessels in papillary dermis with normal deep dermis and subcutaneous tissue