Dupuytren’s contracture

History

          A 68-year old man presented with idiopathic bilateral hard nodules involving the base of both ring fingers (usual site of Dupuytren’s contracture nodules) resulting in mild flexion deformity of both fourth fingers. On examination, hard cord-like flexor tendons within the palm extending from the bases of the ring fingers proximally to mid-palm.

Dermatitis artefacta

History

          A 38-year-old married woman presented with an irregular, clear-cut, longitudinal crusted ulcer about 12×2.5 cm with pinkish red border involved the flexor aspect of the upper part of the forearm of 1 month duration. The ulcer seems to be self-induced with a caustic material (chemical burn) but the patient denied any history of self-mutilatin. The ulcer appearance which didn’t fit any ulcerative dermatological entity and the rapid evolution in addition to non-specific histological findings on skin biopsy may permit the diagnosis of dermatitis artefacta.

Syphilitic chancre

History

          A 22-year old male presented about three weeks post illegal sexual intercourse with a single, painless papule that rapidly became an indurated cartilage-like rounded ulcer on the scrotum. Both VDRL and TPHA were positive. The patient was treated with 2.4 million units benzathine penicillin intramuscularly  and another dose repeated after one week.

Trichotillomania

History

          A 25-year-old female suffered bad social and psychological circumstances presented for non-scarring alopecia localised mainly to the crown area of the scalp. On examination, the hairs were broken at different levels from the surface of the scalp.

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.

Allergic contact dermatitis due to a perfume

History

          A young adult female developed blistering erythematous zoster-like rash on the lower part of the face and neck 24 hours after spraying a newly-used perfume on the affected sites.

Contact dermatitis due to 5-FU

History

         A middle-aged woman diagnosed with actinic cheilitis and for which 5-FU cream had been prescribed. One week later she presented with severe oozy and crusted dermatitis reaction involving the lips and surrounding perioral region. The 5-FU ointment had been stopped and topical steroid was advised.

Common, interesting and rare dermatoses presented in simple way by Dr. Nameer Al-Sudany