Related Experiment Videos
Familial cutaneous mastocytosis
A Chang1, R C Tung, T Schlesinger
1Department of Dermatology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
Pediatric Dermatology
|September 29, 2001
Summary
Familial mastocytosis, specifically telangiectasia macularis eruptiva perstans (TMEP), was observed across three generations in one family. This case suggests a possible autosomal dominant inheritance pattern for TMEP, with early childhood onset.
Area of Science:
- Dermatology
- Genetics
- Human Pathology
Background:
- Cutaneous mastocytosis is typically sporadic, but familial cases have been documented.
- Telangiectasia macularis eruptiva perstans (TMEP) is a rare form of cutaneous mastocytosis.
- Familial inheritance of mastocytosis has been reported in approximately 50 families.
Observation:
- This study details four cases of TMEP within a single family spanning three generations.
- Unlike typical TMEP presentations in adulthood, all affected family members developed lesions in childhood.
- This represents the third documented instance of familial mastocytosis across three generations and the first report of familial TMEP.
Findings:
- The observed familial TMEP presentation in three generations provides further evidence for a genetic component.
- The early childhood onset in this family contrasts with the usual adult manifestation of TMEP.
- The inheritance pattern remains undetermined, but the data support a hypothesis of autosomal dominant transmission with incomplete penetrance.
Implications:
- This case expands the understanding of TMEP's potential hereditary nature.
- The findings may guide future genetic research into the etiology of TMEP and familial mastocytosis.
- Further investigation is warranted to elucidate the specific genetic mechanisms and inheritance patterns of familial TMEP.