PMC10024566_01
A, B) pre-operative pictures
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F1
Clinical findings: the clinical examination finds a subcutaneous swelling, hard, well limited, 3 cm long axis, adherent to the skin but mobile in relation to the deep plane (Figure 1).
ultrasound showing very limited and homogeneous subcutaneous calcification
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F2
magnetic resonance imaging showing very limited and homogeneous subcutaneous calcification
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F3
per-operative picture of the loss of substance after exeresis of the mass
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F4
Therapeutic interventions: the patient benefited from surgical excision that removed a cutaneous spindle in front of the lesion under local anesthesia (Figure 4).
A, B) macroscopic appearance after total removal of pilomatricoma
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F5
The tumor nodule was encapsulated, indurated, measuring 3 cm long axis (Figure 5).
microscopic appearance showing Malherbe pilomatricoma (H&E x 40): A) mummified ghost cells (circle) surrounded by resorptive giant cells (arrows); B) calcifications (asterisks)
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F6
The anatomopathological study noted the presence of mummified ghost cell layers surrounded by giant resorptive cells (Figure 6). Foci of calcifications were also observed (Figure 6).