| CASE REPORT |
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| Year : 2016 | Volume
: 3
| Issue : 1 | Page : 33-36 |
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Amyloidosis cutis dyschromica: A rare dyschromic subtype of primary cutaneous amyloidosis
Anup Kumar Tiwary, Dharmendra K Mishra, Shyam S Chaudhary
Department of Dermatology, Venereology and Leprosy, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
Correspondence Address:
Dr. Anup Kumar Tiwary
Flat No. 103, Maa Enclave Block, Cheshire Home Road, Bariatu, Ranchi - 834 009, Jharkhand
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/2349-5847.184259
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Amyloidosis cutis dyschromica (ACD) is a very rare and distinctive variant of primary cutaneous amyloidosis, clinically characterized by the appearance of hyperpigmented and hypopigmented or depigmented macules on normal looking skin before puberty in generalized distribution. We herein report a 30-year-old male with ACD involving whole body except hands, feet, palm, soles, genitalia, and mucosa since 10 years of age and positive family history. His 25-year-old younger sister also had the similar mottled pigmentary lesions since 8 years of age. On histopathological examination (HPE) of the hyperpigmented macules, increased melanin in the basal layer, pigmentary incontinence, and amorphous eosinophilic deposits were seen in the papillary dermis. HPE of depigmented lesions demonstrated a significant decrease in the number of melanocytes and melanin in the basal layer along with deposition of eosinophilic amyloids in papillary dermis. Based on these HP findings, diagnosis of ACD was made. |
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