All cases in Skin Tumours

Keratoacanthoma

Keratoacanthoma
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History

            An 80-year-old man presented with an asymptomatic, dome-shaped, pinkish-red nodule with central crater filled with heaped-up keratin involved the leg of 10 months duration. It has been excised with a suitable safe margin and sent for HP examination which was consistent with KA.
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Bullous pilomatricoma

Bullous pilomatricoma

Pilomatricoma (Pilomatrixoma or Calcifying Epithelioma of Malherbe) is a benign tumour derived from the hair matrix cells. It usually presents as an asymptomatic, solitary, deep seated, firm subcutaneous nodule with normal or pinkish above skin.  The overlying skin on stretching produces the “tent sign” with multiple facets and angles. Commonest sites are the face, neck or arms; however, the scalp, trunk and lower extremities may be involved. At times, pilomatricoma may have a bullous appearance as in the current case of a female presented with a large bullous lesion with positive transillumination on upper arm of six months duration. The tumour has been excised totally and sent for HP which revealed an encapsulated mass composed of solid masses of basophilic cells and eosinophilic shadow cells.

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Pigmented BCCs

Pigmented BCCs

Pigmented BCCs2

History

          A 65-year old man presented with two rounded red plaques with well-demarcated, thread-like pigmented borders about 2 cm diameter  involving the chest and back. Both lesions cured with twice daily applications of Efudix (5 FU) ointment for 8 weeks.
* The interesting and peculiar aspect in this case is the occurrence of two BCCs simultaneously and on covered part of the body (trunk) in a patient with no risk factor except his age.
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Mycosis fungoides

Mycosis fungoides

History

          A 43-year-old woman presented with a solitary, asymptomatic, brownish red, indurated plaque with multinodular surface and irregular well-demarcated outline on the thigh of one year duration. Skin biopsy was consistent with MF plaque stage.
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Keratoacanthoma

Keratoacanthoma

History

         A 72-year-old woman  presented with an asymptomatic dome-shaped red nodule with central crater filled with keratin. Surface telangectases were apparent on the surface of the tumor which has been present for about three months. The lesion has been surgically excised in toto for therapeutic and diagnostic purposes and revealed histologic changes consistent with the diagnosis of keratoacanthoma.
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Ganglion

Ganglion

History

          A 33-year-old woman presented with an asymptomatic, rounded, dome-shaped, translucent cyst with surface telangiectasia at the base of the thumb of one year duration. Transillumination was positive.
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Umbilical granuloma

Umbilical granuloma

Umbilical granuloma2

History

          A 14-day-old neonate presented with a pinkish nodule protruding from the umbilical stump with bleeding tendency on minor touch. It has been successfully chemically cauterized with silver nitrate stick.
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Squamous cell carcinoma

Squamous cell carcinoma

History

          A 65-year-old farmer presented with an ulcer on the lower lip that increased in size for one and a half year causing massive destruction of the lower lip. On examination one submental lymph node was palpable. Skin  biopsy showed SCC and lymph node was positive.
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