pseudomelanosis

pseudomelanosis

 [soo″do-mel″ah-no´sis]
pigmentation of tissues after death by blood pigments.

pseu·do·mel·a·no·sis

(sū'dō-mel'ă-nō'sis),
A dark greenish or blackish postmortem discoloration of the surface of the abdominal viscera, resulting from the action of sulfureted hydrogen on the iron of disintegrated hemoglobin.
[pseudo- + G. melas, black]

pseu·do·mel·a·no·sis

(sū'dō-mel'ă-nō'sis)
Dark greenish or blackish postmortem discoloration of the abdominal viscera, due to the action of sulfureted hydrogen on disintegrated hemoglobin iron.
[pseudo- + G. melas, black]
References in periodicals archive ?
Upper Gastrointestinal (GI) pseudomelanosis is an uncommon entity characterized by endoscopic visualization of speckled dark mucosal pigmentation.
Because melanosis coli is not due to melanin pigmentation, the names pseudomelanosis coli or lipofuscinosis coli have been suggested.
Pseudomelanosis is a rare endoscopic finding of the upper gastrointestinal tract characterized by accumulation of iron or hemosiderin in the histiocytes of lamina propria.
(3,4) Differential diagnosis includes other causes of black colored esophagus with melanosis, pseudomelanosis, malignant melanoma and acanthosis nigricans.
Mulder, "Pseudomelanosis coli and adenomatous polyps," Journal of Gastrointestinal and Liver Diseases, vol.
Long-term use can also cause benign pigmentation changes in the colon (Pseudomelanosis coli) and can lead to reduced colonic motility (colonic inertia).
However, ease of access to laxatives renders them liable to abuse, and chronic administration can lead to complications like dehydration, hypokalaemia and pseudomelanosis coli (Capasso and Gaginella, 1997; Xing and Soffer, 2001).
Other conditions to consider when black esophagus is encountered are melanosis, pseudomelanosis, melanoma, acanthosis nigricans, coal dust, exogenous dye ingestion, lye ingestion, and pseudomembranous esophagitis [6].
(2) Altenburger et al (1) mentioned the detailed differential diagnoses of black esophagus, including melanosis, pseudomelanosis, coal dust deposition, corrosive ingestion, and acanthosis nigricans.
(4) However, the differential diagnosis includes melanosis, pseudomelanosis, coal dust deposition, corrosive ingestion, and acanthosis nigricans.